# Attention Flow vs Stillfin

The clearest difference is in-app purchases: Attention Flow at none against Stillfin's 3. Attention Flow also leads on device support (4 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Stillfin sells 3 in-app purchases, starting at $0.99 per month. Attention Flow asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Attention Flow | Stillfin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stillfin-focus-and-fish/id6799313682/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Freemium |
| Size | 8 MB | 140 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [可心 周](https://appshunter.io/developer/1868083044) | [少强 吴](https://appshunter.io/developer/1606570561) |

## What reviewers say

### Attention Flow

[App page](https://appshunter.io/ios/app/attention-flow/id6775757600)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Stillfin

[App page](https://appshunter.io/ios/app/stillfin-focus-and-fish/id6799313682)

This app transforms focused work sessions into a peaceful fishing simulation. As you study or work, your in-game angler fishes, and completing focus goals helps your island grow and unlocks rare catches. It offers a calming environment for productivity with optional social features.

**Highlights:** Focus timer with calming sounds, Gamified focus sessions with fishing, Island customization and growth, Collect illustrated fish, Friend system for collaboration, Focus statistics and reports, Optional iCloud sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stillfin Pro · Monthly | $0.99 | per month |
| Stillfin Pro · Yearly | $4.99 | per year |
| Stillfin Pro · Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is Attention Flow free?

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

### Is Stillfin free?

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

### Do Attention Flow or Stillfin have ads?

Neither Attention Flow nor Stillfin shows ads.

### Which is updated more often, Attention Flow or Stillfin?

Attention Flow ships an update every 2 weeks, and Stillfin every 2 weeks. Most recently, Attention Flow was updated on November 5, 2026 and Stillfin on October 31, 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.*