Addition Quest vs Rectangles & Primes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Addition Quest
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The Addition Quest app uses a grid to help students see the patterns in the addition table. This app challenges the player to find an intersection on a grid where the sum of the two addends equals the randomly selected number. Completing the activities by finding 10 correct answers. The Addition Quest app is designed to be a quick math exercise that teachers can use to provide practice with basic addition facts. It supports the elementary math curriculum. As students complete the activities they will discover number patterns in the addition table. Special sound effects make the game fun to use and the interactive design facilitates engagng learning strategies.
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 update cadence: Rectangles & Primes at every 3 weeks against Addition Quest's every 38 months. Addition Quest's advantage is iOS requirement (12.0 vs 15.0). On price, ads, 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.
Addition Quest ships an update every 38 months, Rectangles & Primes every 3 weeks. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | Addition Quest | Rectangles & Primes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 38 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad, Mac, Apple TV | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Ventura Educational Systems | Johannes Charra |
In-app purchases
Addition Quest
No in-app purchases
Rectangles & Primes
No in-app purchases
Questions
Is Addition Quest free?
Is Rectangles & Primes free?
Do Addition Quest or Rectangles & Primes have ads?
Which is updated more often, Addition Quest or Rectangles & Primes?
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