# re vs K

The clearest difference is update cadence: re at every 10 days against K's every 5 months. re also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

re ships an update every 10 days, K every 5 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | re | K |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 months |
| Monetization | Free | — |
| Size | 102 MB | 24 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Seungrae Cho](https://appshunter.io/developer/1620778100) | [Suyong Choi](https://appshunter.io/developer/1799869670) |

## What reviewers say

### re

[App page](https://appshunter.io/ios/app/reme-5-ai/id6504112968)

This app helps you reflect on your day in just 5 minutes with AI-powered insights and data visualization. Create personalized questions and receive reminders to consistently track your personal growth and understanding.

**Highlights:** 5-minute daily reflection, AI-driven personalized insights, Data visualization of progress, Customizable reflection questions, Daily reminder notifications

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-buddy/id6748117592)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is re free?

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

### Is K free?

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

### Do re or K have ads?

Neither re nor K shows ads.

### Which is updated more often, re or K?

re ships an update every 10 days, and K every 5 months. Most recently, re was updated on October 15, 2026 and K on October 24, 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.*