Calculation Triangle vs Mambio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculation Triangle
This virtual manipulative helps develop flexible arithmetic thinking. Users can create puzzles, model problems, and explore number relationships by adding, moving, and hiding tokens within a calculation triangle.
- Virtual calculation triangle manipulative
- Token manipulation for arithmetic
- Create and solve number puzzles
- Hide/show fields and numbers
- Shake to clear the triangle
- Explore number relationships
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This virtual manipulative encourage the development of flexible arithmetic thinking. Watch a video of the app: http://www.youtube.com/watch?v=iN3b20F6UC8 A calculation triangle is splited into three fields. Each field can contain tokens. On each edge the sum of the two corresponding fields is written. And this is how it works: Touch with you fingers on a field to produce tokens and move them from one field to another. Move tokens out of the triangle to delete them. Close the shutter to hide a field. If you swipe over a number you can hide it or show it again. Shake the calculation triangle to emty it. This virtual manipulative does not include tasks. But you can use this app to create puzzle problems for a learning partner or to model and solve existing tasks. Here are some exemples for good tasks to effectively work with this app: Find the missing numbers? Figure out how many tokens are on the hidden field? How do the numbers change, if you ... ... add/remove one (two, three, ...) token to each field? ... move one (two, three, ...) token from one field to another? ... add one token to two of the three fields? ... Is it possible to have three odd numbers? Why (not)? Is there a relationship between the sum of the numbers and the total quanitiy of tokens on the fields? Is it possible to produce any numbers or are there restrictions?
Mambio
This app offers a playful and independent way for children to learn mathematics. It uses scientifically proven methods and engaging learning worlds to make math exciting and motivating, with no subscriptions or ads.
- Playful math learning
- Scientifically based methods
- Individualized tasks
- Engaging learning worlds
- No subscriptions or ads
- Progress tracking
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Mambio ist die kinderfreundliche Mathe-App, die dein Kind spielerisch und selbstständig Mathematik lernen lässt – ganz ohne Abo und Werbung! Mit wissenschaftlich fundierten Lernmethoden und individuellen Aufgaben in bunten Lernwelten wird Mathe spannend und motivierend. Kostenlos ausprobieren: • Zählen bis 10 mit Mambi und seiner Crew. • Digitales Mengenfeld für das Üben in der Schule oder zu Hause. • Finde heraus, ob die 2er- oder 5er-Bündelung für dein Kind am besten ist. Erweiterte Pakete (einmaliger In-App-Kauf): Paket „Lernen bis 20“ • Dein Kind lernt Zählen und Rechnen bis 20 mit Mambi. • Abwechslungsreiche Abenteuer in der Feen-, Monster- und Dinowelt halten die Aufmerksamkeit deines Kindes aufrecht. • Aufgaben zu Mengenverständnis, Addition und Subtraktion im Kopf. • Lernstatistik im PIN-geschützten Bereich zur Überprüfung des Fortschritts. Paket „Lernen bis 100“ • Dein Kind übt alle vier Grundrechenarten mit Zahlen bis 100. • Spannende Lernabenteuer in der Feen-, Monster- und Dinowelt motivieren zum Weitermachen. • Erklärabenteuer für die Addition, Subtraktion, Multiplikation und Division. • Lernstatistik zur Überprüfung des Lernerfolgs. Warum Mambio? • Kein Abo, keine Werbung: Einmal kaufen und für immer nutzen. • Individuell angepasst: Wissenschaftlich entwickelte Lerninhalte fördern dein Kind individuell. • Für alle Kinder: Ab 5 Jahren geeignet und für jedes Lerntempo. Mambio fördert nachhaltiges Lernen ohne Belohnungssystem und unterstützt dein Kind, Mathematik selbstständig zu meistern! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Mambio at 89% against Calculation Triangle's 30%. Mambio also leads on price (Free vs $0.99) and update cadence (every 3 weeks vs every 21 months). Calculation Triangle's advantage is in-app purchases (none vs 7) and iOS requirement (6.0 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
Mambio is free to download; Calculation Triangle costs $0.99 up front. Mambio sells 7 in-app purchases, starting at $7.99 per month. Calculation Triangle asks for nothing beyond the download.
Calculation Triangle ships an update every 21 months, Mambio every 3 weeks. The most recent releases landed on September 21, 2026 and August 22, 2026 respectively.
| Parameter | Calculation Triangle | Mambio |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 30.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 21 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 22 MB | 554 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Urff | neurodactics GmbH |
Customer experience
Calculation Triangle
Mambio
In-app purchases
Calculation Triangle
No in-app purchases
Mambio
- 1 Monat$7.991 Month
- 3 Monate$19.993 Months
- 12 Monate$49.991 Year
- Lernen bis 20$29.99
- Lernen bis 100$29.99
- Basis Paket$29.99
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- Komplettpaket$44.99









