# Subrain vs FocusPiece

The clearest difference is in-app purchases: Subrain at none against FocusPiece's 3. Subrain also leads on iOS requirement (12.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FocusPiece sells 3 one-off in-app purchases. Subrain asks for nothing beyond the download.

Subrain ships an update every 9 days, FocusPiece fortnightly. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Subrain | FocusPiece |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | Free | — |
| Size | 49 MB | 29 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jichan Hwang](https://appshunter.io/developer/1735193590) | [Christoph Hesse](https://appshunter.io/developer/6785995448) |

## What reviewers say

### Subrain

[App page](https://appshunter.io/ios/app/subrain/id6502538432)

This app helps you remember important information and life keywords that you might otherwise forget. Designed for minimalists, it offers a simple way to capture thoughts and serve as a personal milestone.

**Highlights:** Simple note-taking, Capture life keywords, Minimalist design, Acts as a milestone, Organize notes into pages

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

**In-app purchases:** none


### FocusPiece

[App page](https://appshunter.io/ios/app/focuspiece-art-study-timer/id6786891763)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Impressions | $0.99 | one-time |
| Nocturnes | $0.99 | one-time |
| Dutch Golden Age | $0.99 | one-time |


## Frequently asked questions

### Is Subrain free?

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

### Is FocusPiece free?

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

### Do Subrain or FocusPiece have ads?

Neither Subrain nor FocusPiece shows ads.

### Which is updated more often, Subrain or FocusPiece?

Subrain ships an update every 9 days, and FocusPiece fortnightly. Most recently, Subrain was updated on October 10, 2026 and FocusPiece on October 3, 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.*