# 推理の時間 vs unmemory

The clearest difference is price: 推理の時間 at Free against unmemory's $6.99. 推理の時間 also leads on iOS requirement (10.0 vs 13.0). unmemory's advantage is rating (4.7 vs 3.8) and ads (none vs shown). On review sentiment, update cadence and in-app purchases there is nothing between them.

推理の時間 is free to download; unmemory costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

unmemory holds the better App Store score, 4.7 against 3.8. That said, the two scores are not equally well evidenced: unmemory has 148 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 61% of 推理の時間's written reviews are positive against 67% of unmemory's.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 推理の時間 | unmemory |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [3.8 (11 ratings)](https://appshunter.io/ios/app/the-best/id1351738498/reviews) | **[4.7 (148 ratings)](https://appshunter.io/ios/app/unmemory/id1525188600/reviews)** |
| Number of ratings | 11 | **148** |
| Positive reviews | 61.1% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 101 MB | 2.6 GB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 12+ |
| Developer | [MASK APP LLC](https://appshunter.io/developer/1145303731) | [Patrones y Escondites](https://appshunter.io/developer/1402544274) |

## What reviewers say

### 推理の時間

[App page](https://appshunter.io/ios/app/the-best/id1351738498)

Engage in a challenging mystery-solving game with over 300 unique puzzles. Investigate crime scenes, uncover hidden clues within images, and identify the culprit to progress through the game. Hints and answers are available for difficult cases.

**Highlights:** 321 mystery puzzles, Investigate crime scenes, Find hidden clues in images, Tap to reveal answers, Hints and answers available, Simple tap controls

**Features:** macOS Compatibility

**In-app purchases:** none


### unmemory

[App page](https://appshunter.io/ios/app/unmemory/id1525188600)

Solve a murder mystery in this interactive novel that blends text-based gameplay with escape room puzzles. Navigate a damaged mind, uncover clues, and piece together a thrilling crime story set in the 90s.

**Highlights:** Text-based gameplay, Interactive novel, Escape room puzzles, Murder mystery, 90s noir thriller references, Immersive storytelling

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💡 Original and creative gameplay
- 🧠 Engaging and logical puzzles
- 📖 Compelling and well-written story
- 🎶 Catchy and memorable music
- ✨ Unique interface and aesthetic

**What reviewers complain about**

- 🐛 Bugs and progression blockers
- 📉 Novelty of interface wears off
- 🤔 Story can be predictable
- 🗣️ English language barrier
- 🖱️ Clunky image interaction

**Reported bugs**

- Cannot get into Pipas club
- Debaser not displaying in chapter 2
- Cannot move beyond screen scene one
- Game crashes every 2 chapters
- Loses save data after crashes

**Requested features**

- More original storylines
- More interactive elements
- Improve interface for longer input sequences
- More gameplay
- Save feature


## Frequently asked questions

### Is 推理の時間 free?

推理の時間 is free to download, with no in-app purchases.

### Is unmemory free?

unmemory costs $6.99, with no in-app purchases.

### Which has better reviews, 推理の時間 or unmemory?

unmemory is rated higher. 推理の時間 averages 3.8 out of 5 from 11 ratings, while unmemory averages 4.7 from 148 ratings.

### Do 推理の時間 or unmemory have ads?

推理の時間 shows ads; unmemory does not.

### Which is updated more often, 推理の時間 or unmemory?

推理の時間 ships an update every 3 weeks, and unmemory every 3 weeks. Most recently, 推理の時間 was updated on September 28, 2026 and unmemory on September 21, 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.*