Kartoffel vs Chess Notation Fluency
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kartoffel
This app helps you refine your accent and speaking skills by echoing your voice. It provides immediate auditory feedback to guide you in shaping your pronunciation closer to native speakers.
- Voice echo for pronunciation practice
- Accent refinement
- Native speaker comparison
- Language speaking skill improvement
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Voice Echo is an app designed to improve your language speaking skill. It simply echo back your voice to help you to shape your accent more close to native speakers.
Chess Notation Fluency
Master chess notation with interactive exercises. Practice reading and writing Standard Algebraic Notation (SAN) using real game sequences. Track your progress and learn from detailed results.
- Read and write Standard Algebraic Notation (SAN)
- Practice with real game sequences
- Train notation in both directions
- Customizable practice modes
- Detailed performance tracking
- Offline practice available
- No personal data collection
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Make chess notation feel natural. Chess Notation Fluency helps you read and write Standard Algebraic Notation (SAN) through focused practice with real game sequences. TRAIN IN BOTH DIRECTIONS • Watch a move on the board, then enter its notation. • Read a notation prompt, then play the move. • Use Mixed practice to alternate naturally between the two skills. PRACTICE YOUR WAY Choose White or Black, type answers or use multiple choice, begin in the opening, middlegame, or endgame, and select a quick session or a complete game. Exercises retain the surrounding moves so you practice notation in context—not as isolated flash cards. LEARN FROM YOUR RESULTS Track first-try accuracy, attempts, response time, revealed answers, notation features, mistake patterns, and recent sessions. START FREE. EXPAND ONCE. Every practice mode works with two included starter games. An optional one-time Full Game Library purchase unlocks 5,000 curated games for offline practice and lets you import your own PGN games. One purchase unlocks the library on iPhone, iPad, and Mac and supports Family Sharing. There are no subscriptions or ads. PRIVATE AND AVAILABLE Practice history and imported games stay in app-managed storage and synchronize through your private iCloud storage when available. Downloaded content works offline. Chess Notation Fluency has no developer account system and collects no personal data. Available on iPhone, iPad, and Mac.
Screenshots
Verdict
The clearest difference is rating: Chess Notation Fluency at 5.0 against Kartoffel's 3.0. Chess Notation Fluency also leads on device support (3 vs 1). Kartoffel's advantage is in-app purchases (none vs 1) and iOS requirement (16.4 vs 26.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Chess Notation Fluency sells 1 one-off in-app purchase. Kartoffel asks for nothing beyond the download.
Chess Notation Fluency holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.
Kartoffel ships an update every 2 days, Chess Notation Fluency every 3 days. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.
| Parameter | Kartoffel | Chess Notation Fluency |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 3 — better | 2 |
| Update frequency | Every 2 days — better | Every 3 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 16.4 — better | 26.0 |
| Further details — not scored | ||
| Size | 3 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Kyung Jun Lee | Mark Harris |
Customer experience
Kartoffel
Chess Notation Fluency
In-app purchases
Kartoffel
No in-app purchases
Chess Notation Fluency
- Full Game Library$4.99
Questions
Is Kartoffel free?
Is Chess Notation Fluency free?
Which has better reviews, Kartoffel or Chess Notation Fluency?
Do Kartoffel or Chess Notation Fluency have ads?
Which is updated more often, Kartoffel or Chess Notation Fluency?
Other comparisons
