# The Devil's Calculator vs Glyn

The clearest difference is price: The Devil's Calculator at Free against Glyn's $1.99. The Devil's Calculator also leads on rating (4.8 vs 4.6) and iOS requirement (10.0 vs 13.0). Glyn's advantage is in-app purchases (none vs 1). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

The Devil's Calculator is free to download; Glyn costs $1.99 up front. The Devil's Calculator sells 1 one-off in-app purchase. Glyn asks for nothing beyond the download.

The Devil's Calculator holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 246 and 92 respectively. Written reviews split almost evenly too, at 85% and 86% positive.

The Devil's Calculator ships an update every 10 days, Glyn every 8 days. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | The Devil's Calculator | Glyn |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (246 ratings)](https://appshunter.io/ios/app/the-devils-calculator/id1447599858/reviews)** | [4.6 (92 ratings)](https://appshunter.io/ios/app/glyn/id1634392900/reviews) |
| Number of ratings | **246** | 92 |
| Positive reviews | 85.4% of reviews | **85.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 8 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 77 MB | 190 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cinq-Mars Media](https://appshunter.io/developer/924648806) | [EMMANUEL ROUX](https://appshunter.io/developer/914649624) |

## What reviewers say

### The Devil's Calculator

[App page](https://appshunter.io/ios/app/the-devils-calculator/id1447599858)

This math puzzle game challenges you to decipher obscure operators on a calculator. Solve algebraic puzzles by working backward to understand the functions and purge the calculator of its demons. It's an addictive and educational experience with user-created levels and DLC.

**Highlights:** Obscure operator deciphering, Algebraic puzzle solving, User-created levels, DLC levels by mathematicians, Graphing mechanics, Hand-drawn artwork

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version of Game | $2.99 | one-time |

**What reviewers like**

- 💡 Most creative idea ever
- 🧠 Genius puzzle design
- 👍 Fun and educational
- 🚀 Brilliant game concept
- 🤓 Great for math lovers

**What reviewers complain about**

- 😠 Tedious late puzzles
- 🐛 Calculator responsiveness issues
- 🐛 Wolfram graphing feature doesn't work
- 🐛 Progress saving issues
- 🐛 Calculator malfunction

**Reported bugs**

- Some late puzzles with the third operator get too tedious with too much trial and error
- The built-in calculator needs some work and button responsiveness isn’t always the best.
- The graph to wolfram alpha function doesn’t seem to work.
- There’s unfortunately an exploit I accidentally discovered that allows you to bypass any level.
- The “real” calculator malfunctions when you want to use the answer you got previously, like if I input “330 * 2”, getting 660, then pressed “+6” on the next row, instead of showing 660 + 6 = 666, it’d show 2+6 = 8

**Requested features**

- Update the app
- Fix DLC Level 6
- More levels


### Glyn

[App page](https://appshunter.io/ios/app/glyn/id1634392900)

Engage in a unique puzzle game that challenges you to count to four. Enhance your observation abilities while enjoying a charming retro pixel art aesthetic and a calming zen soundtrack. This game offers a simple yet deeply rewarding experience.

**Highlights:** Unique counting puzzle mechanics, Observation skill enhancement, Charming retro pixel art, Soothing zen soundtrack, Simple to learn, satisfying gameplay

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and fun gameplay
- 🎶 Soothing and good music
- 🧠 Engaging and makes you think
- ✨ Amazing improvements in updates
- ⏳ Great time passer

**What reviewers complain about**

- ❓ Confusing to play initially
- 🖱️ Hitbox of dots could be increased
- 💻 How to play instructions on webpage
- 😵‍💫 Webpage font and spacing hard to read
- ❌ Unable to progress past practice levels

**Reported bugs**

- Constantly froze and had to be crashed closed on iPad
- Game resets if left too long in the background when app switching
- Bug where clicking the 4 dots button sometimes leads to game over screen
- Error message every time the app is opened
- 4 dots difficulty says game over and exits

**Requested features**

- Increase hitbox of dots
- Add a notation to mark a dot as 'empty'
- Implement a save feature
- Add timed games
- Add daily challenges


## Frequently asked questions

### Is The Devil's Calculator free?

The Devil's Calculator is free to download, with in-app purchases available.

### Is Glyn free?

Glyn costs $1.99, with no in-app purchases.

### Which has better reviews, The Devil's Calculator or Glyn?

The Devil's Calculator is rated higher. The Devil's Calculator averages 4.8 out of 5 from 246 ratings, while Glyn averages 4.6 from 92 ratings.

### Do The Devil's Calculator or Glyn have ads?

Neither The Devil's Calculator nor Glyn shows ads.

### Which is updated more often, The Devil's Calculator or Glyn?

The Devil's Calculator ships an update every 10 days, and Glyn every 8 days. Most recently, The Devil's Calculator was updated on October 18, 2026 and Glyn on October 14, 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.*