MathBook+ vs Rectangles & Primes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MathBook+
This digital math textbook offers over 1,000 exercises for self-paced learning on Apple devices. It provides a comprehensive resource for mastering mathematical concepts.
- Digital math textbook
- Over 1,000 exercises
- Self-paced learning
- Supports iPhone, iPad, iPod
- Free to download
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Your digital mathbook. MathBook+ helps you learn mathematics on your own, with over 1.000 exercises on your iPhone, iPad or Mac. Download from the App Store.
Rectangles & Primes
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Rectangle provides a fun and insightful maths experience for kids aged 6 to 12. They will improve their understanding of number factorization and prime numbers.
Screenshots
Verdict
The clearest difference is ads: Rectangles & Primes at none against MathBook+'s shown. On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
MathBook+ ships an update monthly, Rectangles & Primes every 3 weeks. The most recent releases landed on June 22, 2026 and September 15, 2026 respectively.
| Parameter | MathBook+ | Rectangles & Primes |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Education House AS | Johannes Charra |
In-app purchases
MathBook+
No in-app purchases
Rectangles & Primes
No in-app purchases
Questions
Is MathBook+ free?
Is Rectangles & Primes free?
Do MathBook+ or Rectangles & Primes have ads?
Which is updated more often, MathBook+ or Rectangles & Primes?
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