# Alter vs Locked Diorama

The clearest difference is in-app purchases: Alter at none against Locked Diorama's 1. Alter also leads on update cadence (weekly vs every 5 months) and iOS requirement (10.0 vs 15.6). Locked Diorama's advantage is rating (4.8 vs 4.3) and review sentiment (88% vs 71%). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Locked Diorama sells 1 one-off in-app purchase. Alter asks for nothing beyond the download.

Locked Diorama holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 18 and 26 respectively. Written reviews point the same way: 71% of Alter's written reviews are positive against 88% of Locked Diorama's.

Alter ships an update weekly, Locked Diorama every 5 months. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Alter | Locked Diorama |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (18 ratings)](https://appshunter.io/ios/app/alter-between-two-worlds/id1591395226/reviews) | **[4.8 (26 ratings)](https://appshunter.io/ios/app/locked-diorama/id6612015503/reviews)** |
| Number of ratings | 18 | **26** |
| Positive reviews | 71.4% of reviews | **87.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 2.2 GB | 94 MB |
| Requires iOS | **10.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOBASO](https://appshunter.io/developer/1457825223) | [Harry Tahir](https://appshunter.io/developer/1294167389) |

## What reviewers say

### Alter

[App page](https://appshunter.io/ios/app/alter-between-two-worlds/id1591395226)

Explore two parallel worlds in this tile-based puzzle adventure. Solve imaginative puzzles by switching between dimensions, interacting with the environment, and facing multidimensional enemies. Embark on a soul-searching journey through fantastical areas.

**Highlights:** Switch between parallel worlds, Tile-based puzzle mechanics, Hand-crafted art and environments, Environmental interaction, Original soundtrack, Tablet and phone optimized

**Features:** macOS Compatibility

**In-app purchases:** none


### Locked Diorama

[App page](https://appshunter.io/ios/app/locked-diorama/id6612015503)

Immerse yourself in a 3D escape game experience with challenging puzzles and unique environments. Solve riddles, find clues, and collect stars to unlock new levels and escape the diorama rooms. Offers a tutorial and multiple level packs for endless fun.

**Highlights:** 3D isometric escape rooms, Puzzle-solving challenges, Clue and item discovery, Star collection for unlocks, Tutorial and bonus levels, Auto-save progress

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Alter free?

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

### Is Locked Diorama free?

Locked Diorama is free to download, with in-app purchases available.

### Which has better reviews, Alter or Locked Diorama?

Locked Diorama is rated higher. Alter averages 4.3 out of 5 from 18 ratings, while Locked Diorama averages 4.8 from 26 ratings.

### Do Alter or Locked Diorama have ads?

Both Alter and Locked Diorama show ads.

### Which is updated more often, Alter or Locked Diorama?

Alter ships an update weekly, and Locked Diorama every 5 months. Most recently, Alter was updated on October 13, 2026 and Locked Diorama 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.*