Immersion Reader vs Count Biki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Immersion Reader
Easily look up Japanese words while reading ebooks with a single tap. Import custom dictionaries and export saved vocabulary for spaced repetition learning. Offers customizable themes for a comfortable reading experience.
- One-tap word lookup in Japanese ebooks
- Import Yomichan and frequency dictionaries
- Export vocabulary to Anki
- Light and dark mode themes
- Lookup neighboring words
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Look up Japanese words as you read! Features - One tap to look up words in Japanese Ebooks. Tabs to help you look up neighboring words - Import Yomichan dictionaries and frequency dictionaries - Export saved vocabulary to Anki via Anki Dojo - Light mode, dark mode, and other themes for the dictionary
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: Count Biki at 4.3 against Immersion Reader's 4.0. Immersion Reader's advantage is update cadence (every 6 days vs fortnightly) and ratings volume (26 vs 3). On price, ads, in-app purchases and monetization model 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. Immersion Reader sells 1 one-off in-app purchase and Count Biki sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Count Biki holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: Immersion Reader has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 62% of Immersion Reader's written reviews are positive against 50% of Count Biki's, so the app with the better star average is not the one people write more warmly about.
Immersion Reader ships an update every 6 days, Count Biki fortnightly. The most recent releases landed on October 17, 2026 and September 28, 2026 respectively.
| Parameter | Immersion Reader | Count Biki |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (26 ratings) | 4.3 (3 ratings) — better |
| Positive reviews | 61.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 26 — better | 3 |
| Update frequency | Every 6 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 80 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Mathew Chan | TwoCentStudios |
Customer experience
Immersion Reader
Count Biki
In-app purchases
Immersion Reader
- Immersion Reader Premium$4.99
Count Biki
- Small Tip$0.99
- Medium Tip$4.99
- Large Tip$19.99
Questions
Is Immersion Reader free?
Is Count Biki free?
Which has better reviews, Immersion Reader or Count Biki?
Do Immersion Reader or Count Biki have ads?
Which is updated more often, Immersion Reader or Count Biki?
Other comparisons
