Num25 vs Abacus Slash
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Num25
Engage in a classic numbers game with a competitive twist. Challenge friends in battle mode for enhanced enjoyment and strategic play.
- Classic numbers game gameplay
- Competitive battle mode
- Play with friends
- Enhanced enjoyment
- Strategic play
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The classic numbers game is... Comeback and support the battle mode!! You can get more pleasure than ever with friend.
Abacus Slash
A fast-paced game where you quickly input numbers on a virtual abacus to match on-screen prompts before your health depletes. Progress through 30 stages and 10 chapters, improving your mental math speed and abacus skills.
- Lightning-fast abacus calculation
- 30 stages with increasing difficulty
- Chapter-based story progression
- Best time and star ratings
- Multiple player profiles
- Practice stages for basics
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A lightning-fast abacus calculation game — enter the displayed numbers on the soroban before your HP runs out! From 1-digit addition to 3-digit mixed calculations, race through 30 stages across 10 chapters and prove your mental math speed. How to Play A number flashes on screen. Slide the beads to match it — fast. The longer you take, the more HP you lose. Clear consecutive numbers to complete each stage. Features - Master the Basics in Practice Stages - 30 stages: 1 to 3 digits, addition, subtraction & mixed - Chapter-based story progression - Best time & star ratings per stage - Multiple player profiles — share with family & friends - Optimized for iPhone & iPad Think you can master the abacus at maximum speed? Slash through every stage and find out.
Screenshots
Verdict
The clearest difference is rating: Abacus Slash at 5.0 against Num25's 4.4. Abacus Slash also leads on update cadence (every 2 days vs every 6 weeks). Num25's advantage is in-app purchases (none vs 1) and ratings volume (5 vs 1). On price, 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
Both are free to download. Abacus Slash sells 1 one-off in-app purchase. Num25 asks for nothing beyond the download.
Abacus Slash holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Num25 has 5 ratings behind it against 1, so its average is the more settled of the two.
Num25 ships an update every 6 weeks, Abacus Slash every 2 days. The most recent releases landed on October 12, 2026 and September 29, 2026 respectively.
| Parameter | Num25 | Abacus Slash |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 6 weeks | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 5 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | QQ TSUBASA | POPPO STUDIO |
Customer experience
Num25
Abacus Slash
In-app purchases
Num25
No in-app purchases
Abacus Slash
- Unlock All Stages & Remove Ads$3.99
