# Subrain vs StoicLock

The clearest difference is in-app purchases: Subrain at none against StoicLock's 3. Subrain also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). StoicLock's advantage is update cadence (every 2 weeks vs every 15 months). On price and ads there is nothing between them.

Both are free to download. StoicLock sells 3 in-app purchases, starting at $9.99 per month. Subrain asks for nothing beyond the download.

Subrain ships an update every 15 months, StoicLock every 2 weeks. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Subrain | StoicLock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 41 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jichan Hwang](https://appshunter.io/developer/1735193590) | [PING CHEN LEE](https://appshunter.io/developer/1884350545) |

## 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


### StoicLock

[App page](https://appshunter.io/ios/app/stoiclock-screen-time-and-focus/id6760416696)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Annual | $39.99 | per year |
| Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is Subrain free?

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

### Is StoicLock free?

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

### Do Subrain or StoicLock have ads?

Neither Subrain nor StoicLock shows ads.

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

Subrain ships an update every 15 months, and StoicLock every 2 weeks. Most recently, Subrain was updated on October 24, 2026 and StoicLock on October 11, 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.*