Mental Calculation & Abacus vs Triple Rush!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mental Calculation & Abacus
Engage in a fun and educational game designed to enhance mental calculation skills. Learn to use an abacus with an easy-to-follow tutorial and practice with diverse question types.
- Mental calculation practice
- Abacus learning tutorial
- Variety of practice questions
- Suitable for all ages
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Play the best Mental Calculation and Abacus game! * Practice with a variety of questions * Easy tutorial for learning Abacus
Triple Rush!
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Triple Rush is a lightning fast brain game about spotting multiples of 3 under pressure. Each round, a fresh 4x4 grid appears - tap only the tiles that are divisible by 3, avoid the rest, and beat the timer. Chain perfect taps to boost your combo and push your score into the stratosphere. Pick your difficulty (Easy / Normal / Hard), master the rhythm, and use smart power ups when milliseconds matter. Can you keep your streak alive and reach the global Game Center leaderboards? How to Play • A 4x4 board appears with numbers of mixed lengths. • Tap only multiples of 3 (3, 6, 9, 12, 15, …). • Clear all targets before time runs out to advance to the next round. • Build combos for bonus points - misses break your chain. Power Ups (Gems) • Hint - Reveal one correct tile (20 gems). • Time +5s - Add 5 seconds to the clock (25 gems). • Life +1 - Gain an extra life (60 gems). You start with a welcome gift of 300 gems. Additional gems are available as an optional purchase (300 gems for $4.99). Difficulty and Progression • Easy - Generous time, more 1 to 2 digit numbers. • Normal - Balanced pace with mixed digits. • Hard - Tight timing, more 3 to 4 digit numbers, bigger scores. Features • Fast, addictive rounds with crisp haptics and sound cues. • Combo scoring that rewards accuracy and speed. • Smart diff
Screenshots
Verdict
The clearest difference is in-app purchases: Mental Calculation & Abacus at none against Triple Rush!'s 6. Mental Calculation & Abacus also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.6). Triple Rush!'s advantage is ads (none vs shown) and update cadence (weekly vs every 6 months). On price 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. Triple Rush! sells 6 one-off in-app purchases. Mental Calculation & Abacus asks for nothing beyond the download.
Mental Calculation & Abacus ships an update every 6 months, Triple Rush! weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Mental Calculation & Abacus | Triple Rush! |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 6 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 143 MB | 7 MB |
| Age rating | 4+ | 12+ |
| Developer | Park Jisang | IcePenguin's cruise diary |
In-app purchases
Mental Calculation & Abacus
No in-app purchases
Triple Rush!
- Starter Gems$1.99
- Value Gems$4.99
- Popular Gems$9.99
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- Hero Gems$19.99
- Pro Gems$39.99
- Ultra Gems$59.99
Questions
Is Mental Calculation & Abacus free?
Is Triple Rush! free?
Do Mental Calculation & Abacus or Triple Rush! have ads?
Which is updated more often, Mental Calculation & Abacus or Triple Rush!?
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