# Super Corners™ vs Master Books

The clearest difference is price: Master Books at Free against Super Corners™'s $1.99. Master Books also leads on review sentiment (71% vs 33%) and update cadence (every 2 months vs every 27 months). Super Corners™'s advantage is chart position (#193 vs unranked) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Master Books is free to download; Super Corners™ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Master Books holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Master Books has 933 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 33% of Super Corners™'s written reviews are positive against 71% of Master Books's.

Super Corners™ ships an update every 27 months, Master Books every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Super Corners™ | Master Books |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.5 (12 ratings)](https://appshunter.io/ios/app/super-corners/id1371439108/reviews) | **[4.9 (933 ratings)](https://appshunter.io/ios/app/master-books/id1489206639/reviews)** |
| Number of ratings | 12 | **933** |
| Positive reviews | 33.3% of reviews | **70.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Best chart rank | **#193** | — |
| Size | 83 MB | 86 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Activities for Learning inc.](https://appshunter.io/developer/406078584) | [Master Books](https://appshunter.io/developer/1765159122) |

## What reviewers say

### Super Corners™

[App page](https://appshunter.io/ios/app/super-corners/id1371439108)

**Currently charting:** #193 Top Paid · Education (US App Store)

A strategic card game where players match colors and add numbers to reach multiples of 5. Unlock score multipliers by creating "corners," "bays," and "windows" with the cards. Compete for high scores with 50 cards per game.

**Highlights:** Number and color matching, Achieve multiples of 5, 4, or 3, Score multipliers for card formations, 50 cards per game, High score storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Master Books

[App page](https://appshunter.io/ios/app/master-books/id1489206639)

Connect with a community of homeschooling users, staff, and authors. Get support, updates, and exclusive offers related to a specific curriculum. Share experiences and find help on your educational journey.

**Highlights:** Community connection, Support and updates, Exclusive offers, Connect with staff and authors, Homeschooling journey resources

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ♥️ Amazing community
- 👍 Easy to use app
- 🚀 Helpful teaching tip videos

**What reviewers complain about**

- 🔒 Strict censorship and monitoring by admins
- 🐛 Login and password issues
- 🚫 Inability to discuss or recommend anything outside of Masterbooks products

**Reported bugs**

- Unable to log in
- App not working after update

**Requested features**

- Picture-in-picture mode for live streams
- More flexibility in discussions and recommendations


## Frequently asked questions

### Is Super Corners™ free?

Super Corners™ costs $1.99, with no in-app purchases.

### Is Master Books free?

Master Books is free to download, with no in-app purchases.

### Which has better reviews, Super Corners™ or Master Books?

Master Books is rated higher. Super Corners™ averages 4.5 out of 5 from 12 ratings, while Master Books averages 4.9 from 933 ratings.

### Do Super Corners™ or Master Books have ads?

Neither Super Corners™ nor Master Books shows ads.

### Which is updated more often, Super Corners™ or Master Books?

Super Corners™ ships an update every 27 months, and Master Books every 2 months. Most recently, Super Corners™ was updated on November 6, 2026 and Master Books on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*