# 100 Doors Escape Game vs Zero Sum

The clearest difference is review sentiment: Zero Sum at 100% against 100 Doors Escape Game's 49%. Zero Sum also leads on update cadence (every 3 days vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. 100 Doors Escape Game sells 10 one-off in-app purchases and Zero Sum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

100 Doors Escape Game ships an update every 6 weeks, Zero Sum every 3 days. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 100 Doors Escape Game | Zero Sum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (7.4K ratings)](https://appshunter.io/ios/app/100-doors-escape-game/id1453520464/reviews)** | — |
| Number of ratings | **7.4K** | — |
| Positive reviews | 48.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 238 MB | 23 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Peaksel](https://appshunter.io/developer/618105376) | [Mathew DeLong](https://appshunter.io/developer/455985926) |

## What reviewers say

### 100 Doors Escape Game

[App page](https://appshunter.io/ios/app/100-doors-escape-game/id1453520464)

Embark on a brain-teasing challenge to unlock over 100 doors in a school setting. Find hidden objects, solve intricate puzzles, and utilize cool mechanics to help Mya escape. This free game offers logical tasks and engaging levels with hints available.

**Highlights:** Unlock 100+ doors, Find hidden objects, Solve intricate puzzles, Utilize cool mechanics, Hints available, Multiple school rooms

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3000 coins | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| 8500 coins | $3.99 | one-time |
| 3000 coins | $3.99 | one-time |
| 3000 coins | $4.99 | one-time |
| 8500 coins | $4.99 | one-time |
| Starter pack | $4.99 | one-time |
| 8500 coins | $9.99 | one-time |
| 20000 coins | $9.99 | one-time |
| 20000 coins | $19.99 | one-time |

**What reviewers like**

- 🚀 Fun
- 👍 Not many ads
- 💡 Inspired to try real escape rooms
- 👍 Gives hints on first few levels

**What reviewers complain about**

- 🐛 Glitches and bugs
- 🔍 Difficult to select items
- 💰 Requires payment to progress
- 🤔 Puzzles lack logic or reasoning

**Reported bugs**

- Level 93 resets to 15 apples
- Level 52 and 133 have incorrect information
- Chalk not working on level 72
- Levels not loading properly

**Requested features**

- More challenging levels
- Improved object interaction
- Better audio support
- Fix level progression issues


### Zero Sum

[App page](https://appshunter.io/ios/app/zero-sum/id6779928476)

A puzzle game where players merge numbered tiles to clear the board and reach zero. Strategic merging of positive, negative, and multiplier tiles presents increasingly difficult challenges.

**Highlights:** Merge numbered tiles, Clear the board, Reach zero score, Interact with positive, negative, and multiplier tiles, Solve challenging boards, Unlockable cases

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is 100 Doors Escape Game free?

100 Doors Escape Game is free to download, with in-app purchases available.

### Is Zero Sum free?

Zero Sum is free to download, with in-app purchases available.

### Do 100 Doors Escape Game or Zero Sum have ads?

Both 100 Doors Escape Game and Zero Sum show ads.

### Which is updated more often, 100 Doors Escape Game or Zero Sum?

100 Doors Escape Game ships an update every 6 weeks, and Zero Sum every 3 days. Most recently, 100 Doors Escape Game was updated on October 24, 2026 and Zero Sum on October 9, 2026.

---

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