# DEEMO II vs Sinclair's Notebook

The clearest difference is in-app purchases: Sinclair's Notebook at none against DEEMO II's 43. Sinclair's Notebook also leads on review sentiment (100% vs 68%) and update cadence (every 4 days vs every 2 months). DEEMO II's advantage is ads (none vs shown) and ratings volume (3.7K vs 16). On price, device support and iOS requirement there is nothing between them.

Both are free to download. DEEMO II sells 43 one-off in-app purchases. Sinclair's Notebook asks for nothing beyond the download.

Sinclair's Notebook holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DEEMO II has 3.7K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 68% of DEEMO II's written reviews are positive against 100% of Sinclair's Notebook's.

DEEMO II ships an update every 2 months, Sinclair's Notebook every 4 days. Both last shipped on October 16, 2026.

## The numbers

| Metric | DEEMO II | Sinclair's Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (3.7K ratings)](https://appshunter.io/ios/app/deemo-ii/id1531981487/reviews) | **[5.0 (16 ratings)](https://appshunter.io/ios/app/sinclairs-notebook/id6758689011/reviews)** |
| Number of ratings | **3.7K** | 16 |
| Positive reviews | 67.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Best chart rank | **#177** | — |
| Size | 3.5 GB | 481 MB |
| Requires iOS | 15.2 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Rayark International Limited](https://appshunter.io/developer/483529071) | [Puffything Games Inc.](https://appshunter.io/developer/1791042476) |

## What reviewers say

### DEEMO II

[App page](https://appshunter.io/ios/app/deemo-ii/id1531981487)

**Currently charting:** #177 Top Free · Music (US App Store)

Embark on a musical fantasy adventure in a world threatened by destructive rain. Play rhythm-based music charts to clear the rain and uncover the secrets of a mysterious kingdom. Explore, interact with characters, and enjoy a captivating story with stunning visuals and voice acting.

**Highlights:** Emotional story exploration, Rhythm and adventure gameplay, 120+ songs including DLC, Interact with 50+ characters, Storybook graphics and artstyle, Movie-quality animated scenes

**In-app purchases (43)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Event Bundle E | $1.99 | one-time |
| Event Bundle AZ | $2.99 | one-time |
| Event Bundle CT01 | $3.99 | one-time |
| Event Bundle DT01 | $3.99 | one-time |
| Event Bundle IT | $4.99 | one-time |
| Event Bundle IU | $4.99 | one-time |
| Event Bundle IV | $4.99 | one-time |
| Event Bundle ET01 | $4.99 | one-time |
| Crystal x 600 | $5.99 | one-time |
| Event Bundle CL01 | $5.99 | one-time |
| Event Bundle CQ01 | $5.99 | one-time |
| Event Bundle IS01 | $5.99 | one-time |
| Event Bundle IS02 | $5.99 | one-time |
| Event Bundle ITa | $5.99 | one-time |
| Event Bundle IUa | $5.99 | one-time |
| Event Bundle IVa | $5.99 | one-time |
| Event Bundle IC01 | $5.99 | one-time |
| Event Bundle HW012 | $5.99 | one-time |
| Event Bundle GJ01 | $5.99 | one-time |
| Event Bundle FO012 | $5.99 | one-time |
| Event Bundle FI012 | $5.99 | one-time |
| Event Bundle FD01 | $5.99 | one-time |
| Event Bundle EY01 | $5.99 | one-time |
| Event Bundle EQ01 | $5.99 | one-time |
| Event Bundle EL01 | $5.99 | one-time |
| Event Bundle EH01 | $5.99 | one-time |
| Event Bundle EB01 | $5.99 | one-time |
| Event Bundle DI01 | $5.99 | one-time |
| Event Bundle DN01 | $5.99 | one-time |
| Event Bundle A | $9.99 | one-time |
| Crystal x 1200 | $11.99 | one-time |
| Event Bundle CB08 | $11.99 | one-time |
| Event Bundle CC01 | $11.99 | one-time |
| Event Bundle CF15 | $11.99 | one-time |
| Mountain Arcanum | $14.99 | one-time |
| Soaring Arcanum | $14.99 | one-time |
| Devotion Arcanum | $14.99 | one-time |
| Echo Pass | $19.99 | one-time |
| Crystal x 2400 | $23.99 | one-time |
| Event Bundle IS01a | $25.99 | one-time |
| Event Bundle IS02a | $25.99 | one-time |
| Event Bundle U | $29.99 | one-time |
| Crystal x 6000 | $59.99 | one-time |

**What reviewers like**

- 👍 Great mechanics
- 🎨 Beautiful visuals and animations
- 🎶 Captivating music and soundtrack
- 💡 Engaging story and characters
- 🤗 Relaxing and immersive experience

**What reviewers complain about**

- 💰 Expensive in-app purchases
- 🕰️ Slow progression without spending money
- 🔒 Limited free content
- 🐛 Performance issues and crashes
- 🤔 Confusing monetization model

**Reported bugs**

- Frequent crashes and white screen issues
- Touch input not always recognized
- Compatibility problems on newer devices

**Requested features**

- More free songs and content
- Improved event system and rewards
- Better camera controls and navigation
- Optimization for older devices


### Sinclair's Notebook

[App page](https://appshunter.io/ios/app/sinclairs-notebook/id6758689011)

Embark on a literary mystery as Sinclair, seeking your friend Demian in a world consumed by chaos. Explore, gather clues in your notebook, and solve puzzles to uncover the truth behind the madness. This choice-driven narrative is inspired by Hermann Hesse's classic novel.

**Highlights:** Point-and-click gameplay, Visual novel narrative, Mystery thriller genre, Choice-driven story, Clue gathering and puzzle solving, Literary-inspired atmosphere

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

**In-app purchases:** none


## Frequently asked questions

### Is DEEMO II free?

DEEMO II is free to download, with in-app purchases available.

### Is Sinclair's Notebook free?

Sinclair's Notebook is free to download, with no in-app purchases.

### Which has better reviews, DEEMO II or Sinclair's Notebook?

Sinclair's Notebook is rated higher. DEEMO II averages 4.8 out of 5 from 3.7K ratings, while Sinclair's Notebook averages 5.0 from 16 ratings.

### Do DEEMO II or Sinclair's Notebook have ads?

Sinclair's Notebook shows ads; DEEMO II does not.

### Which is updated more often, DEEMO II or Sinclair's Notebook?

DEEMO II ships an update every 2 months, and Sinclair's Notebook every 4 days. Most recently, DEEMO II was updated on October 16, 2026 and Sinclair's Notebook on October 16, 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.*