# DayBlock vs Subrain

The clearest difference is device support: Subrain at 3 against DayBlock's 1. Subrain also leads on iOS requirement (15.0 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DayBlock ships an update weekly, Subrain every 8 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | DayBlock | Subrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dayblock-build-your-day/id6474824210/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Free | Free |
| Size | 24 MB | 41 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Minjoon Kim](https://appshunter.io/developer/1722570485) | [Jichan Hwang](https://appshunter.io/developer/1735193590) |

## What reviewers say

### DayBlock

[App page](https://appshunter.io/ios/app/dayblock-build-your-day/id6474824210)

Track your daily efforts by creating custom 'blocks' representing your activities. Visualize your productivity growth and organize tasks with custom colors and icons. Review your day's achievements through dynamic calendar insights.

**Highlights:** Productivity tracking with 30-minute intervals, Live Activity for seamless tracking, Smart background tracking, Customizable blocks with names, colors, and icons, Group related blocks for organization, Calendar view for daily insights, Dynamic visual representation of activities

**In-app purchases:** none


### Subrain

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

This minimalist note-taking app helps you remember important keywords and life directions. It offers a simple interface for jotting down tasks and life-defining thoughts, acting as an extension of your memory.

**Highlights:** Simple note writing, Organized pages for notes, Minimalist interface, Acts as an extra brain, Helps remember keywords, Tracks life directions

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

**In-app purchases:** none


## Frequently asked questions

### Is DayBlock free?

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

### Is Subrain free?

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

### Do DayBlock or Subrain have ads?

Neither DayBlock nor Subrain shows ads.

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

DayBlock ships an update weekly, and Subrain every 8 days. Most recently, DayBlock was updated on November 4, 2026 and Subrain on November 4, 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.*