Cryptarithms vs UniUni ABC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cryptarithms
Solve challenging mathematical puzzles where letters represent digits in arithmetic equations. This app offers 90 cryptarithms with translations into six languages, requiring only basic math and logical reasoning skills.
- Letter-to-digit substitution puzzles
- Logical reasoning challenges
- Arithmetic equality solving
- 90 unique cryptarithms
- Translations into 6 languages
Read full descriptionHide full description
The ability to sum numbers and perform logical reasoning are the only skills required for solving cryptarithms. Nevertheless, these puzzles are often witty and challenging to solve. A cryptarithm is a mathematical puzzle where digits in an arithmetic equality are replaced by letters. It is defined so that distinct letters correspond to distinct digits. Moreover, when the letters are converted back by the original digits, the resulting equality must be valid. The problem is to find the original digits. 90 сryptarithms with their translations to 6 languages are presented. Enjoy!
UniUni ABC
This interactive app uses a virtual picture book format with vibrant visuals and professional audio to help children develop phonics and pronunciation skills. It features speech recognition technology for accurate practice and engaging animations to stimulate imagination.
- Interactive phonics and pronunciation practice
- Speech recognition technology
- Virtual picture book format
- Vibrant 3D visuals and animations
- Professional voice actor recordings
- Guided listening and speaking exercises
Read full descriptionHide full description
Meet Mr. UniUni, your child’s phonics companion! UniUniABC is an interactive learning app designed to help children develop phonics and pronunciation skills. With vibrant visuals, immersive audio, and guided listening and speaking exercises, learning becomes both effective and enjoyable. 1 Learn and practice everywhere! - UniUniABC is a virtual picture book which gradually introduces kids to modern devices. - UniUniABC features the latest speech recognition technology in order to offer prompt and accurate results when practicing the target words. - Colorful and interactive animations will amaze your children and stimulate their imagination. 2 Visual Traits - 3D modeling, original illustrations, physics engine etc. were adopted in order to offer a visually entertaining experience. - UniUniABC is presented in a picture book fashion with lots of animals and characters specifically designed for this app. 3) Realistic and original sounds - More than 500 lines recorded by professional voice actors. - All the sounds present in UniUniABC were specifically made only for this application. — UniUni ABC is only compatible with devices running iOS 10 or later.
Screenshots
Verdict
The clearest difference is rating: Cryptarithms at 5.0 against UniUni ABC's 4.4. Cryptarithms also leads on price ($1.99 vs $3.99) and iOS requirement (12.0 vs 15.6). UniUni ABC's advantage is update cadence (every 3 months vs every 41 months) and ratings volume (5 vs 1). On ads, in-app purchases, monetization model and device support 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
Cryptarithms costs $1.99 and UniUni ABC $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Cryptarithms holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: UniUni ABC has 5 ratings behind it against 1, so its average is the more settled of the two.
Cryptarithms ships an update every 41 months, UniUni ABC every 3 months. Both last shipped on October 8, 2026.
| Parameter | Cryptarithms | UniUni ABC |
|---|---|---|
| Price | $1.99 — better | $3.99 |
| Rating | 5.0 (1 ratings) — better | 4.4 (5 ratings) |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 41 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 7 MB | 700 MB |
| Age rating | 4+ | 4+ |
| Developer | Roman Koksharov | Fuminori Homma |
Customer experience
Cryptarithms
UniUni ABC
In-app purchases
Cryptarithms
No in-app purchases
UniUni ABC
No in-app purchases
Questions
Is Cryptarithms free?
Is UniUni ABC free?
Which has better reviews, Cryptarithms or UniUni ABC?
Do Cryptarithms or UniUni ABC have ads?
Which is updated more often, Cryptarithms or UniUni ABC?
Other comparisons















