ChessAtlas vs Flag Game
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
ChessAtlas compared with Flag Game
| Detail | 
ChessAtlas | FG
Flag Game |
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| What it does | Free chess opening trainer with spaced repetition
| Play a free online flag game featuring flags from 200+ countries
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Free
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| Pricing | Not given
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| Key features | - Spaced repetition with FSRS algorithm
- Repertoire builder
- Opening trainer with instant feedback
- Game import from Lichess and Chess.com
- Deviation detection
- Course library with opening courses
- iOS and Android mobile apps
- Multiple language support
| - Multiple difficulty levels (Easy, Medium, Hard)
- Customizable round lengths (10, 15, 20, 40, 80, or All)
- Regional focus (practice flags by continent)
- Streak bonus system
- Optional timer for timed challenges
- Instant feedback on answers
- Multiple game modes (flag identification, country challenges, color quizzes)
- Local progress tracking without accounts
- Mobile and desktop compatible
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| What makes it different | - FSRS algorithm schedules reviews 15-30% more efficiently than SM2
- Automatic deviation detection from Lichess and Chess.com games
- Full repertoire builder in free tier with no course purchase required
| - No sign-up, download, or account required
- Covers flags from 200+ countries
- Privacy-focused with all data stored locally
- Realistic educational distractors by region and color
- Flexible practice by region or globally
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 10 ▲ +1 (up) since last check | 5 ● no change since last check |
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| Trust Flow (Majestic) | 22 | 5 |
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| Citation Flow (Majestic) | 24 | 13 |
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| Referring domains (Majestic) | 34 | 4 |
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4 details filled in for both companies.
More alternatives to ChessAtlas More alternatives to Flag Game