# Subrain vs FLIP

The clearest difference is update cadence: FLIP at every 3 months against Subrain's every 15 months. Subrain's advantage is iOS requirement (15.0 vs 26.0). On price, review sentiment, 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.

Subrain ships an update every 15 months, FLIP every 3 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Subrain | FLIP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flip-focus-timer/id6767826399/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 41 MB | 2 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jichan Hwang](https://appshunter.io/developer/1735193590) | [Izhan Ansari](https://appshunter.io/developer/1800980817) |

## 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


### FLIP

[App page](https://appshunter.io/ios/app/flip-focus-timer/id6767826399)

This app helps overcome procrastination by using a 2-minute rule to initiate tasks. It features a simple, single-screen interface with haptic feedback and lock-screen visibility to encourage deep work and short breaks.

**Highlights:** 2-minute kickoff timer, Flip phone for deep work, Sideways phone for breaks, Single-screen interface, Haptic feedback, Lock-screen and Live Activity, 100% on-device privacy

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

**In-app purchases:** none


## Frequently asked questions

### Is Subrain free?

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

### Is FLIP free?

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

### Do Subrain or FLIP have ads?

Neither Subrain nor FLIP shows ads.

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

Subrain ships an update every 15 months, and FLIP every 3 months. Most recently, Subrain was updated on October 24, 2026 and FLIP on October 16, 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.*