Cryptarithms vs Binjitsu
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
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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!
Binjitsu
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The binary system. In your head, for good. Binjitsu is your dojo for computer science fundamentals: for your first CS semester, vocational training, or pure brain sport. Train across 7 worlds from white belt to black belt: decimal ↔ binary, powers of two, hex & octal, binary addition, two's complement, bitwise operations, ASCII. Three modes: Kata (understand), Kumite (60-second sparring), a daily Drill across everything you have learned. Your sensei analyzes your mistake patterns and tells you what to train tomorrow. 7 days free, then subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://pitchnext.com/binjitsu/datenschutz/
Screenshots
Verdict
The clearest difference is price: Binjitsu at Free against Cryptarithms's $1.99. Binjitsu also leads on update cadence (every 3 months vs every 41 months). Cryptarithms's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.0). On ads 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
Binjitsu is free to download; Cryptarithms costs $1.99 up front. Binjitsu sells 1 in-app purchase, starting at $29.99 per year. Cryptarithms asks for nothing beyond the download.
Cryptarithms ships an update every 41 months, Binjitsu every 3 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.
| Parameter | Cryptarithms | Binjitsu |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 41 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 7 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Roman Koksharov | pitchnext GmbH |
In-app purchases
Cryptarithms
No in-app purchases
Binjitsu
- Pro – Yearly7 Days trial$29.991 Year
