Mental Math vs RekenSter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Math
Enhance your arithmetic abilities with daily math challenges. This app offers over 30 difficulty levels, personalized exercises, and progress tracking to help users of all ages improve their calculation speed and accuracy.
- 30+ difficulty levels
- Personalized exercises
- Progress tracking
- Quick sessions
- User-friendly design
- Engaging and interactive
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Boost Your Mental Math Skills – Anytime, Anywhere! Sharpen your mental math skills or take on exciting number challenges with the ultimate math-practice companion! Challenge Your Brain: Explore 30+ difficulty levels, from basic addition and subtraction to multiplication tables and division. Perfect for kids, students, and math enthusiasts! Tailored Learning: Progress at your own pace with exercises matched to your skill level. Each level has its own icon to help you track achievements and keep improving. Track Your Progress: Review detailed summaries after each session to spot strengths and areas to improve. Restart levels anytime to aim for perfection! Fun for All Ages: Designed to be engaging, interactive, and rewarding for learners of all ages. Why Choose Us? • Clean, user-friendly design. • Quick sessions to fit any schedule. • Perfect for students, educators, and lifelong learners. Download now and start your journey to mental-math mastery! Practice smarter, calculate faster, and enjoy the challenge. Subscription Information: The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage your subscription or turn off auto-renew in your iTunes account settings. Any unused portion of a free trial period will be forfeited when you purchase a subscription. Support & Policies: • support@ulilab.com • https://ulilab.com • Privacy Policy: https://ulilab.com/privacy • Terms of Use: https://ulilab.com/terms
RekenSter
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RekenSter helpt kinderen van de lagere school hun rekenen oefenen, in korte rondes van twaalf vragen. Je kiest eerst het leerjaar, daarna wat je wil oefenen. 1STE LEERJAAR - Splitsen tot 10 en tot 20 - Optellen en aftrekken tot 10 - Optellen en aftrekken tot 20, met en zonder brug over het tiental - Buurgetallen - Groter, kleiner of gelijk 2DE LEERJAAR - Optellen en aftrekken tot 100 - De maaltafels van 2, 3, 4, 5 en 10 - De bijbehorende deeltafels - Verdubbelen en halveren - Aanvullen tot het tiental en tot 100 3DE LEERJAAR - Alle maaltafels van 1 tot 10 - Deeltafels tot 10 - Delen tot 100 - Getallen tot 100: H, T en E, sprongen, getallenas en ordenen - Plus en min tot 100, zonder en met brug - Vraagstukken met plus en min Elk leerjaar heeft daarnaast een module waarin alle bewerkingen door elkaar komen. SLIM HERHALEN Wat je fout hebt, komt terug. RekenSter onthoudt per onderdeel welke oefeningen misgingen en biedt die automatisch opnieuw aan in de volgende ronde. Zo oefent je kind precies wat nog niet vlot gaat. GEMAAKT VOOR KINDEREN Grote cijfers, een eigen cijfertoetsenbord en meteen duidelijke feedback na elk antwoord. Geen tijdsdruk, geen verloren levens, geen straf voor een fout antwoord. WERKT OVERAL De volledige app zit op het toestel. Geen internet nodig, dus ook bruikbaar in de auto, op de trein of op vakantie. VEILIG Geen reclame. Geen in-app aankopen. Geen account. Geen enkele gegevensverzameling. Alle scores blijven op het toestel zelf staan. Geschikt voor iPhone en iPad.
Screenshots
Verdict
The clearest difference is in-app purchases: RekenSter at none against Mental Math's 10. On price, update cadence, 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. Mental Math sells 10 in-app purchases, starting at $4.99 per 7 days. RekenSter asks for nothing beyond the download.
Mental Math ships an update every 3 weeks, RekenSter every 10 days. The most recent releases landed on September 22, 2026 and October 29, 2026 respectively.
| Parameter | Mental Math | RekenSter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 28 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrey Lebedev | Inter Pipe Tool BV |
In-app purchases
Mental Math
- Premium Plus$4.997 Days
- Premium Plus3 Days trial$4.997 Days
- Premium Plus$5.991 Month
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- Premium Plus$11.993 Months
- Premium Plus$14.991 Year
- Premium Plus$17.491 Year
- Premium Plus$24.991 Year
- Premium Plus7 Days trial$24.991 Year
- Premium Plus7 Days trial$39.991 Year
- Premium Plus$39.99
RekenSter
No in-app purchases
Questions
Is Mental Math free?
Is RekenSter free?
Do Mental Math or RekenSter have ads?
Which is updated more often, Mental Math or RekenSter?
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