# 1% Lock vs Kalos

The clearest difference is in-app purchases: 1% Lock at none against Kalos's 2. 1% Lock also leads on iOS requirement (18.6 vs 26.0). Kalos's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Kalos sells 2 in-app purchases, starting at $1.99 per month. 1% Lock asks for nothing beyond the download.

1% Lock ships an update weekly, Kalos every 10 days. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 1% Lock | Kalos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 10 days |
| Size | 65 MB | 13 MB |
| Requires iOS | **18.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryunosuke Ishigami](https://appshunter.io/developer/1872709737) | [Aucreo](https://appshunter.io/developer/6797762231) |

## What reviewers say

### 1% Lock

[App page](https://appshunter.io/ios/app/1-lock-screen-time-blocker/id6792271074)

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

**In-app purchases:** none


### Kalos

[App page](https://appshunter.io/ios/app/kalos/id6797762229)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is 1% Lock free?

1% Lock is free to download, with no in-app purchases.

### Is Kalos free?

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

### Do 1% Lock or Kalos have ads?

1% Lock shows ads; Kalos does not.

### Which is updated more often, 1% Lock or Kalos?

1% Lock ships an update weekly, and Kalos every 10 days. Most recently, 1% Lock was updated on October 29, 2026 and Kalos on October 25, 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.*