Compare: Only Opens: Chess Openings vs Chess Openings Promaster
| Stats |   Only Opens: Chess Openings |  Chess Openings Promaster |
|---|---|---|
| User count | 11 | 561,530 |
| Average rating | 0.00 | 3.94 |
| Rating count | 0 | 1,449 |
| Last updated | 2026-06-09 | 2026-05-29 |
| Size | 7.94MB | 29.66MB |
| Version | 1.2 | 3.6.30 |
| Short description | |
|---|---|
| Learn chess openings with spaced repetition, AI play & Stockfish analysis. Free. | Improve your Chess Openings with our Spaced Repetition Method. |
| Full summary | |
- | - |
Popular Extensions / Apps
Here are some popular extensions / apps that you might be interested in:
Opera Mini browser beta
Opera
116M 4.61 
(1,001,614) 
Screen Recorder - XRecorder
InShot Inc.
412M 4.70 (7,600,765)
Checker Plus for Gmail™
https://jasonsavard.com
1000K 4.65 (12,689) 
Serasa: Consulta CPF e Score
Serasa Experian
109M 4.60 (865,091)
Ghostery – Privacy Ad Blocker
Ghostery
1M 4.42 (5,585) 
Crafto
Kutumb App
140M 4.60 (968,523) 
Shopee Indonesia
Shopee Indonesia
412M 4.72 (18,333,973)
Dark Reader
alexanderby
3M 4.60 (1,344) 
Steam Inventory Helper
https://steaminventoryhelper.com/
1000K 4.46 (17,661)
Dave: Credit, Cash & Money App
Dave, Inc
4.80 (839,398)
(839,398) 
Brigit: Cash Advance & Credit
Brigit Inc
4.80 (501,700)
(501,700) 
Browsec VPN - Free VPN for Chrome
https://browsec.com
8M 4.45 (39,271)