The Unstoppables vs Mental Math Trainer
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
The Unstoppables
Join four friends on a mission to rescue their kidnapped guide dog. Navigate obstacles and utilize teamwork to overcome challenges in this adventure game. Explore diverse locations, from a house to a spooky forest hut, in a quest to save Tofu.
- Rescue mission
- Teamwork challenges
- Obstacle navigation
- Diverse locations
- Story-driven adventure
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What a catastrophe! The four friends Mai, Jan, Achim and Melissa were standing in front of the food stand completely unsuspectingly when, suddenly, their beloved guide dog Tofu was kidnapped by a mysterious villain! The four friends know their mission clearly: they must free Tofu from the hands of his kidnapper. The friends won’t let their differences get in their way. Only through great teamwork will they be able to overcome the various obstacles in the way of their goal. They are «The Unstoppables!» This fun journey begins at Melissa’s house and continues step by step to the spooky forest hut. Will you succeed in helping the Unstoppables free Tofu? This game was developed alongside the «Diversity Principle» learning resource, which is concerned with the theme of «Sameness and Otherness».
Mental Math Trainer
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CalcSprint is a mental math trainer built for one thing: making you faster at arithmetic in your head. No paper, no calculator — just you, the clock, and a stream of problems to solve as fast as you can. Every session is a timed sprint. The clock starts, problems appear, and you tap the correct answer. The quicker and more accurately you solve, the higher you score. How it works: • Timed sprints — solve as many problems as you can before time runs out • Pick your length — 30-second, 1-minute, or 2-minute sessions • Three levels — Easy (add and subtract), Medium (all four operations), Hard (all four, plus two-step problems) • Multiple choice — tap to answer and keep up the pace • Pure head math — quick single- and two-step calculations, done in your head Track your progress: • Streak of correct answers in a row • Accuracy — how many you get right • Average answer time — watch your speed climb • Your personal best, ready to beat • A 14-day history of your practice No account, no sign-up, no clutter — open the app and start solving in seconds. Made for students warming up before a test, anyone keeping their mental math sharp, and people who just enjoy quick calculation. Practice a little every day and your head math gets faster and more confident. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: The Unstoppables at none against Mental Math Trainer's 2. Mental Math Trainer's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. Mental Math Trainer sells 2 in-app purchases, starting at $1.99 per month. The Unstoppables asks for nothing beyond the download.
The Unstoppables ships an update every 3 months, Mental Math Trainer every 3 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | The Unstoppables | Mental Math Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (18 ratings) — better | — |
| Positive reviews | 73.3% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 234 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Schweizerische Stiftung fuer das cerebral gelaehmte Kind | Nadzeya Yashchuk |
In-app purchases
The Unstoppables
No in-app purchases
Mental Math Trainer
- Full Stats. No Ads. Monthly.$1.991 Month
- Full Stats. All Year.3 Days trial$9.991 Year
Questions
Is The Unstoppables free?
Is Mental Math Trainer free?
Do The Unstoppables or Mental Math Trainer have ads?
Which is updated more often, The Unstoppables or Mental Math Trainer?
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