Sūji vs Count Biki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sūji
Learn Japanese numbers with this app. It translates numbers into Kanji, Hiragana, or Romaji, and provides audio pronunciation. You can also generate random numbers to explore new combinations.
- Number translation to Kanji, Hiragana, Romaji
- Audio pronunciation of numbers
- Random number generation
- Supports multiple writing systems
- Practice writing and speaking
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Sūji is your companion if you are learning the numbers in Japanese, both writing and pronunciation. Type in a number and get its translation written in Kanji, Hiragana or Romaji. If it helps to hear how it is pronounced, Sūji reads the number to you so you can repeat it. And if you can't think of a number to translate, you can generate random numbers to discover new combinations.
Count Biki
Learn and practice Japanese numbers with interactive quizzes. Features adjustable difficulty, multiple voices, and detailed session summaries. Ideal for all levels of Japanese language learners.
- Japanese number mastery
- Customizable quiz modes
- Variable voice settings
- Session summaries
- Multiple listening topics
- In-app purchases for premium features
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Master numbers in Japanese, at your own pace. For beginners through advanced Japanese language learners. How It Works -------------------- • Listen to a randomly generated number in Japanese. • Type the answer in numerals. Features -------------------- • Dozens of topics • Question limit, time limit, and infinite quiz modes • Multiple voices • Variable voice rate and pitch • View session summary with incorrect answers Listening Topics -------------------- • Numbers • Money • Time Durations • Dates & Times Transylvania Tier -------------------- • Unlock Transylvania Tier by leaving any size tip via In-App Purchases. • You'll get access to alternate app icons and support ongoing development.
Screenshots
Verdict
The clearest difference is rating: Sūji at 5.0 against Count Biki's 4.3. Sūji also leads on in-app purchases (none vs 3) and device support (6 vs 1). Count Biki's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (3 vs 1). On price, ads and iOS requirement 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. Count Biki sells 3 one-off in-app purchases. Sūji asks for nothing beyond the download.
Sūji holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively.
Sūji ships an update every 4 months, Count Biki fortnightly. The most recent releases landed on October 15, 2026 and October 23, 2026 respectively.
| Parameter | Sūji | Count Biki |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.3 (3 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Ale Mohamad | TwoCentStudios |
Customer experience
Sūji
Count Biki
In-app purchases
Sūji
No in-app purchases
Count Biki
- Small Tip$0.99
- Medium Tip$4.99
- Large Tip$19.99
