# SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 vs illusions「幻」

The clearest difference is in-app purchases: illusions「幻」 at none against SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録's 8. illusions「幻」 also leads on ads (none vs shown) and update cadence (every 5 days vs every 11 days). On price and device support there is nothing between them.

Both are free to download. SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 sells 8 in-app purchases, starting at $2.99 per month. illusions「幻」 asks for nothing beyond the download.

SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 ships an update every 11 days, illusions「幻」 every 5 days. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 | illusions「幻」 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 11 days | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 111 MB | 6 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryogo Owashi](https://appshunter.io/developer/1852190898) | [Junpei Ikuta](https://appshunter.io/developer/6788286901) |

## What reviewers say

### SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録

[App page](https://appshunter.io/ios/app/sideflow/id6801014804)

This app helps you focus by combining a timer with your favorite music from Apple Music or Spotify. It visually represents your focus sessions as collectible tickets and offers features to block distracting apps and track your progress over time.

**Highlights:** Focus timer with music integration (Apple Music/Spotify), App and website blocking during focus sessions, Focus sessions visualized as collectible tickets, Progress tracking and analytics (weekly, monthly, yearly), Customizable timer interface with rewards, Social features to connect with friends' focus progress

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SideFlow Premium | $2.99 | per month |
| SideFlow Premium | $17.99 | per year |
| SideFlow Premium | $22.99 | per year |
| SideFlow 120コイン | $0.99 | one-time |
| SideFlow 400コイン | $2.99 | one-time |
| SideFlow 900コイン | $5.99 | one-time |
| プレーヤーパーツ 3個 | $5.99 | one-time |
| SideFlow 2000コイン | $11.99 | one-time |


### illusions「幻」

[App page](https://appshunter.io/ios/app/illusions/id6801233198)

**In-app purchases:** none


## Frequently asked questions

### Is SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 free?

SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 is free to download, with in-app purchases available.

### Is illusions「幻」 free?

illusions「幻」 is free to download, with no in-app purchases.

### Do SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 or illusions「幻」 have ads?

SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 shows ads; illusions「幻」 does not.

### Which is updated more often, SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 or illusions「幻」?

SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 ships an update every 11 days, and illusions「幻」 every 5 days. Most recently, SideFlow｜集中タイマー・スマホ制限・勉強と仕事の記録 was updated on October 13, 2026 and illusions「幻」 on October 5, 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.*