Build an opening repertoire with uncharted variations using the power of the strongest chess engine and the wisdom of chess grandmasters


- Offline implementation — Arkon does not use cellular data

- Moves scored by powerful Stockfish chess engine in centipawns (cp)

- Move popularity from Chess Grand Master games (ELO 2600+)

- Game PGN chess position display and export via email

- Opening Lines from Encyclopedia of Chess Openings (ECO)


Arkon is free to download and use. However, should you desire to explore chess openings beyond the first 20 positions, you can unlock a full version as follows:

3-Month Unlimited Moves: USD 0.99

1-Year Unlimited Moves: USD 2.99

Lifetime Unlimited Moves: USD 8.99

All of these purchase items have unrestricted access to explore openings regardless of move depth

What’s New

Version 3.0.3

- minor updates & bug fixes

Ratings and Reviews

4.9 out of 5
86 Ratings

86 Ratings

Jerec0668 ,

Not bad

Nice opening explorer/ engine - sometimes I don’t 100 percent trust the analysis as you can put the same game into the engine and it will pick different moves out as best half of the time. Also there is an annoying bug in it where the engine will crash if you try and put a move in it doesn’t “like” I’ve come across this a lot and it needs patching.

App Privacy

The developer, Avniel Apps LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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