# 15 vs Exception;

The clearest difference is price: 15 at Free against Exception;'s $2.99. Exception;'s advantage is ads (none vs shown) and update cadence (fortnightly vs every 14 months). On in-app purchases, device support and iOS requirement there is nothing between them.

15 is free to download; Exception; costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

15 ships an update every 14 months, Exception; fortnightly. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 15 | Exception; |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[4.8 (2.7K ratings)](https://appshunter.io/ios/app/exception/id1439153819/reviews)** |
| Number of ratings | — | **2.7K** |
| Positive reviews | — | 82.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | — | Paid |
| Best chart rank | — | **#196** |
| Size | 46 MB | 79 MB |
| Requires iOS | 8.0 | 8.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chuanming Chang](https://appshunter.io/developer/1001571025) | [Kunpo](https://appshunter.io/developer/767379940) |

## What reviewers say

### 15

[App page](https://appshunter.io/ios/app/15-puzzle-classic/id1105760140)

**Features:** macOS Compatibility

**In-app purchases:** none


### Exception;

[App page](https://appshunter.io/ios/app/exception/id1439153819)

**Currently charting:** #196 Top Paid · Puzzle (US App Store)

Engage in a unique single-player game where you program AI units to overcome challenges and defeat enemies in a virtual world. Strategize and code different unit types to progress through levels and uncover the secrets of a seemingly perfect system.

**Highlights:** AI programming gameplay, Strategic unit control, Challenging single-player levels, Virtual world exploration, Uncover system secrets

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

**In-app purchases:** none

**What reviewers like**

- 👍 Interesting and challenging gameplay
- 🚀 Smooth and fluid animations
- 💡 Unique programming-based mechanics
- 🤖 Good introduction to programming concepts
- 🎨 Visually appealing design

**What reviewers complain about**

- 🔒 Most levels locked behind paywall
- 🐛 Inconsistent bot behavior
- 💰 Game feels like a demo with limited content

**Reported bugs**

- Bots not responding to commands as expected
- Scripting errors when retreating

**Requested features**

- Sandbox mode to create custom levels
- Hint system for difficult levels
- Ability to sync progress across devices
- Multiplayer or co-op modes


## Frequently asked questions

### Is 15 free?

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

### Is Exception; free?

Exception; costs $2.99, with no in-app purchases.

### Do 15 or Exception; have ads?

15 shows ads; Exception; does not.

### Which is updated more often, 15 or Exception;?

15 ships an update every 14 months, and Exception; fortnightly. Most recently, 15 was updated on October 26, 2026 and Exception; on October 25, 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.*