SmallFish Chess for Stockfish

4.8 (2.7K)
144.6 MB
Age rating
Current version
Ted Wong
Last update
11 months ago
Version OS
14.0 or later
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User Reviews for SmallFish Chess for Stockfish

4.78 out of 5
2.7K Ratings
2 years ago, meta732
One of the best!
As good as if not better than almost everything out there regardless of platform. I use this to analyze all of my games whether OTB or online. I love that it shows multiple lines with each move. Trust me when I say that it's hard to find anything as robust and user-friendly on PC (eg, Lucas Chess can run Stockfish but I haven't been able to configure the settings to display multiple lines during analysis). And hats off for an exceptional (and appropriate) privacy policy! This app is a gem and must-have for chess enthusiasts of every level. Not convinced by my endorsement? SmallFish is recommended by the Stockfish team via the official website. -14 Pro Max on iOS 16.1.x
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1 year ago, AjedrezSobrio
Outstanding Tool
This thing is simply amazing! A must-have for any serious or aspiring Chess player. It used to be, in my experience, that a phone app couldn't match up to a program on a computer. I have this app on my lap(tablet)top and on my phone and it performs just the same. Extremely strong! You can see several lines simultaneously. Truest a great study/strengthening tool. The fact that it's free, well, it's just outstanding...!
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1 month ago, aknva01
Buggy, but gets the job done
This chess game provides a list of customization features, which I love. One problem, sometimes, it won’t let me move my pieces. Right when the opposing opponent is done, I try to move a piece, but it wouldn’t let me. I could only move my king, making me watch all of my other pieces soon disappear and leave my king all alone. One time, it froze completely and left me just staring at my screen for a good twenty seconds. At least it provides opportunities for settings for newer players, such as showing legal moves and difficulty modes.
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3 years ago, Fprwsl
Opponent always runs out of time.
No matter what I do in the options, I always win because my opponent runs out of time. The game continues, however, even though the clock is 0.00 so that’s a good thing. This issue starts immediately: playing white pieces, I play 1. d4, black always immediately plays either d5 or f6; I play 2. c4 . . . . black “thinks” 20-40 seconds before making a second move, usually c5. Really? As long as 40 seconds to make the second move. And that “thinking” exists throughout the game. For instance, black offers a queen trade: I accept. Then black deliberates 20, 30, etc. seconds whether or not to capture my queen when there is obvious nothing to deliberate. Hardly a realistic or enjoyable scenario.
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4 years ago, ifla01
Well designed app - update
After updating to ios13.6, it seems that there are graphic issues (piece alignment to the board, coordinates alignment to the board). None of these are impediments to using it, but are annoying. Please update! *Having tried many chess apps, I consider this app to be excellent! Most chess enthusiasts say that the only decent chess games were developed for PC. Until finding this app I thought that was true. My preferred choice has been Chess Master- Grandmaster edition (pc version), which I used for more than 10 years. This app is certainly the best contender yet!
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3 years ago, Samthelamanite
Crashes often
Running on an iPhone 11 using iOS 14.4 and it crashes almost every time I use it. Crashes when I manually set up a board to play out or when I'm adjusting settings. I love this app and would love it to work seamlessly. The crashing is unfortunate so I can do anything to reduce the crashing, let me know. Love the board setup option, option to play as black or white, the two or three move recommendations. I would love if it told you the opening you were playing as you chose the moves.
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6 years ago, richerchess
I find SmallFish difficult to navigate(the HIARCS app is very intuitive but not free of charge). Also I believe SmallFish does not display number of positions looked at per second as the regular Stockfish app does. Stockfish is free and easy to use. Another issue is that I can’t see whether the endgame tablebase I downloaded is installed on SmallFish, or how to verify that SmallFish is using them( I think a red TB is displayed WHILE the table base is in use). But If true that it’s Elo ~3300 on iphones, that’s pretty cool. If u mostly need the very strongest app, at the cost of some features smallfish is the one to get.
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1 year ago, elevensbest
As a beginning chess player . . .
I love that the grapg function will show me every time I make a bad move and then, with the scroll bar, I can take that bad move back and try something else (hopefully, with a better rating on the graph). With these two tools working in tandem and providing feedback, I can teach myself how to read the board and use intelligent strategy.
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2 years ago, dantheman11
New additions?
Could you please add personality, adjustable search depth, and more evaluation lines (10)! This app is literally the best out there but these are all features I have desperately wanted in one app but haven’t been able to find in an all in one package. Thank you for all your hard work! This app already is the best, but these features would blow the competition out of the water.
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1 year ago, StewardH
Very Powerful and Versatile
The SmallFish Application is incredibly powerful and offers an exceptionally useful array of features, including a continuously updated graph showing how well the player is doing. The blue arrows point out all possible legal moves. Incredibly, the application is free of charge. Highly recommended for players of all levels, and can challenge players at the highest levels.
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11 months ago, mrbusters
I will just use Stockfish
I don’t know what the advantages of this app are over stock fish. it says in the description review your game with comments. That’s leading me to believe that it annotate’s my game…. it does not. Yes you can analyze your game with comments if you leave those comments. So it lets you write your own comments in a game. Next I load one of the grandmaster games. The game shows annotations but soon as you make the move the annotations disappear. If I’m doing something wrong, please explain it to me and I will change my review. Which brings up another point. The app is not user-friendly at all.
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1 year ago, RoyDaBob
Best chess app
This app works great for analyzing games and checking out the engine moves. I think it will be better tho if it has chess board scanning feature like other chess apps. Other apps have a feature which lets you take a screenshot of chess board and set up the board with the picture. It would be great if this app also adds this!
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4 years ago, chuchu0rocket
Great game
This game, on intermediate level is very challenging for me. It offers a number of different game pièce icons and provides a list of the moves made. I know there are a number of free chess games offered in the App Store but I’m sticking with this I e as it has th be one of the best. It even has a function where you can leave notes as you play along for further study. Great game and what’s more it’s free!
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3 weeks ago, Indy909x
What a great app, and free. I have tried just about every chess app on here, and keep coming back to this one. It is well-designed, with no hassle or irritating social media or distractions. I really appreciate how it will identify the opening being used, which is one of the big ways I enjoy using this app. Amazing job.
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3 years ago, Aidanwalter111
Best Stockfish App
This is definitely the best Stockfish app out there. Highly recommend. The only problem I’ve noticed is that the best move arrow often does not match with the actual best move as provided by the analysis. Also, sometimes the three lines of analysis are not ordered by their actual strength. Other than that, amazing app with very active development.
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4 months ago, Ryan chnib
This is great!
This is almost perfect! As a uscf master this app works as a tool to help me improve my chess abilities and helps me prevent mistakes ive done in past games but theres one thing that itches me about it the app doesnt have a feature that lets the robot play like someone from different elos but overall a 4/5 star app keep uo the good work!
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1 year ago, Butterfingers999
Loved it but…
I’m not sure what I did with it, but I was messing with the setup positions game-set to have a little fire in the game, but it crashed, completely fine. Then I realized it crashes every time I opened it, now I’m upset that I broke the app. If your wondering, I got it to work but I had to uninstall, so glad the fix was that easy, I just wish there was a warning on invalid setups.
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1 year ago, Ken Harpster
Great Stockfish based chess application
I’m not an expert by any means, but Stockfish is such a great chess engine. Ted has done a great job of bringing Stockfish to iOS in SmallFish! Kudos for the hard work and keeping the app free of charge and ad free! My favorite feature is the “blunder check” which shows where made I made poor choices, and provides better moves.
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4 months ago, qhlffiguodj
Pretty good for what is literally is
I mean like what else is there. You can save games and export too, which is cool I guess. Can’t think of any improvement for it. Maybe to update the opening lists, but other than that it’s just basically a mobile Stockfish…very easy to use too.
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4 years ago, Splangy613
Free? Hard to believe, but true.
I started playing with this app a few weeks ago and became more and more impressed over time. The UI is solid and the ability to move through a game while getting analysis is so slick. I love this game and I’m playing it every day and you should too.
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3 years ago, hostaris
Great Engine, Too Difficult
I’ll be the first to admit, I don’t have the attention span for chess. That being said, I can usually hang with the first few levels up to like 500 ELO. Not on this one. Even children’s mode blows my back out every game. So if you’re even a little bit good at chess, you won’t notice. I mainly use it to record PGNs of games I have with my kiddo.
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7 months ago, zackschuster
Great app! Just missing one thing...
Performance and update cadence are fantastic, and I appreciate the customization options. The only issue I have is the lack of support for variations. It would be great to be able to have additional lines, especially when loading PGNs. As it stands I can't use it for reviewing my prep for an opponent.
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2 years ago, Drawgood
Broken App
I am not sure how this app can remain in the App Store if it simply does not work according to its own options. When I attempt to play against the engine it gives you settings for the engine strength, how many seconds to think (5, 10, 15, 30..n…infinite time) threads to look for, and how much memory to use. This does not work because even when you set it to think 5 seconds (which is actually pretty long for an engine) it takes too long and usually loses on time. It takes way more than the selected time. Another problem is, for some reason, it cannot import a game PGN while other apps can import the same text from the clipboard no problem. The official StockFish app can do it no problem. So, why would anybody waste their time on this broken one?
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7 years ago, ChessCoach123
Excellent, better than Stockfish
This is a fantastic app, especially since it is free. Regularly updated to use the newest and strongest Stockfish engine (which is the equal of the strongest chess engines in the world, free or paid). Beautiful, simple interface with unique analysis graph. For every move, shows who is winning and by how much in a easy-to-understand graph. Virtually unique among free programs in allowing users to add comments to moves. Very helpful in going over your own games and making notes on where to improve. Developer has responded very quickly to emails pointing out bugs and suggesting improvements. Thanks, Ted!
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1 year ago, plentyzeross
Excellent…top notch
Gets to the heart of chess in a straightforward and direct way helping the player improve with thoughtful tips and take backs. Has many options to change the board, pieces, time duration and level of play. A true asset for improving your chess game!
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11 months ago, cllawson
Incredible Chess App
This app succeeds where so many other chess apps fail- proving that slick advertising, corporate marketing, etc are not the deciding factor in creating a remarkable user experience. This chess app has been developed with such intuitive insight. Highly recommend. Thank you!
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2 years ago, mouse_potato_li
Awesome chess engine app
Hi this is the go to app for me when setup position and doing analysis. It’s been updated very frequently with all nice feature. Kindly requesting to add ‘Show book move’ option when playing, which will be very helpful for studying the chess. Thank you!
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3 years ago, notsoavidgamereviewer
The app is very useful, well organized, and has an abundance of customization options. It is great that something like this is free. The one and only change I would like to see is a dark mode for all the menus, as it would be much easier on my eyes. Other than that, I love the app.
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1 month ago, gfyy2k
Wish it Had a Camera Feature
I wanted to use this to study my new chess books and take pics of diagrams so i can follow along in the book. I hope this feature gets added.
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6 years ago, Cjcardoso
Great for study
I read books on a chess reader app, but not all books are in this format. This app allows me to play and set up positions from the book, and I explore moves that are not mentioned. I also download a bunch of tournament PGNs for later references. I also use it to sharpen up my openings. Really great app. Get it!
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6 months ago, L1TALIEN
If the Small Fish app were a real person:
That person would be considered one of the top 5 best players of all time, small fish app without doubt is grand master level chess, whoever says otherwise doesn’t know what they’re talking about!
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3 years ago, Dhjazz
Love it but...
The app won’t open after a single use. I use it to annotate my games and then export PGN, all good. Go to do another game and when I open the app it crashes immediately, won’t even open. So I delete it and reinstall it. It’s worth it cause it’s a great tool so I give it 4 stars, but maybe developers can fix this issue somehow?
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5 years ago, 3\/@ñ nn€ÿ£[$
Constantly crashing
Every time I open the settings or flip the board the app crashes. The app is brilliant other than this problem hence my 5 star rating. I don’t want the rating of the app to be ruined due to an iOS update. Please fix soon!
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1 year ago, Beat raters
Need to convert a position on the fly in a game! Plug it in and watch as SmallFish turns what is horrible into what is great. Just one problem. It starts trading pieces when it shouldn’t. Like if it’s up a queen against a knight and queen. It’ll trade queens which is just dumb a lot of the time
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3 years ago, CurryMe
The absolute best chess app in the store.
As far as I am concerned this is the singularly best chess app in the store. I am grateful for all of the recent updates, which only make it better. Is it the most pretty? No. Is it the most social? No. Is it the easiest? No. Is it still the best by a far margin? Yes. Download immediately.
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2 years ago, jakemh24
Very Hard to Navigate
The app is super confusing and non-intuitive. I can’t complain too much, since it’s offering a strong engine free of charge. But I’m just really surprised they don’t lay things out in an easy-to-use way. It was difficult to figure out how to just analyze a position with 3 threads of analysis, but I’m slowly figuring things out.
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1 year ago, Ráger
Amazing app overall awesome, it would be nice that there was a little explanation behind every move and why it’s the best just to really get that learning curve overall love it but still.
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4 days ago, Thefavorite9712
It’s definitely top tier
The reason this is very good and better than everything else is because it’s fast. It’s like 1 second to come up with a move.
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1 year ago, Chillychilboy
Pretty good
This is an amazing app for analyzing games and for studying grandmaster games, but a big problem holding it back is its interface, it is very difficult to navigate and some of the buttons overlap. Never the less, an amazing app, hopefully these issues will be fixed in the future.
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1 year ago, Evan k937
Crashing Last Few Days
Great but won’t open ever since recent updates. It crashes immediately. Please fix soon!!!
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1 year ago, a swwwwss
I love this game!!
I love this game but i will tell you a update that you could do so when your playing a game can you put numbers and all the letters please it makes it so easier love this game love yall
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3 years ago, Mulraven
Good but crashes
I like the app and appreciate that it is offered for free. However the game constantly crashes both on my iphone and ipad.
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3 years ago, deepmodem
What good is it if it keeps crashing?
This could be a wonderful program if it didn’t always crash and die. I have an ipad pro with plenty of storage and using the latest os. I’ve tried deleting the app and reinstalling the latest versions many times. Either the game will completely crash, or it won’t move and the clock will run out unless I force it to move. Currently it is unusable, hence the one star.
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5 years ago, Ryanmp99
Recent TB Crashing
Crashing related to tablebase usage has gotten much worse since the recent update. Could you work on adding an analysis mode in which you can analyze multiple lines at once without them being deleted?
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3 years ago, 
Good settings and easy to use
Adds some much needed settings and features other apps lack. Only thing missing for me is option to provide multiple suggested moves in analysis mode when there are several “good” moves
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3 years ago, dnskajsbshs
Hecka dope
I’m learning so many openings with this and it’s great to use to cheat against your friends, very good can’t recommend it more, although I’m not sure you can use this to play online
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5 years ago, nobody612
IOS 13 issues
Do not want to ruin the rating of the wonderful app, but Almost all settings entries are broken in IOS 13! Fix please! Update: Fixed.
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1 year ago, Napoleon_PhoneApart
Great Chess Software!
I just download Smallfish yesterday and am very impressed by its strength on a cell phone. I have Stockfish installed on my PC, so I'm fairly familiar with it. If I had a wish list for Smallfish, it would be: 1. The ability to disable flipping the board every other move. 2. The option to let Smallfish play itself. This would be handy when studying endgame play. A wonderful piece of chess software, though. Great job!
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6 months ago, ngant17
Very good for training
Chess hints are guiding you through your best moves against the computer. Helpful for avoiding the obvious and more problematic choices that typically will set you up for a loss.
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Good except in 1 thing
Now, when you choose your difficulty setting ( I choose beginner ) the A.I is way too hard to be beginner. It’s kind of like expert in beginner. If you could change this in the next update it would really help.
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