# iWorkUntil vs Stillr

The clearest difference is in-app purchases: iWorkUntil at none against Stillr's 1. iWorkUntil also leads on update cadence (every 8 days vs every 6 weeks). Stillr's advantage is iOS requirement (13.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Stillr sells 1 one-off in-app purchase. iWorkUntil asks for nothing beyond the download.

iWorkUntil ships an update every 8 days, Stillr every 6 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | iWorkUntil | Stillr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 6 weeks |
| Size | 50 MB | 69 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [David Klausz](https://appshunter.io/developer/1626521331) | [ARZU ARSLAN](https://appshunter.io/developer/1895192852) |

## What reviewers say

### iWorkUntil

[App page](https://appshunter.io/ios/app/iworkuntil-adhd-visual-timer/id6759521985)

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

**In-app purchases:** none


### Stillr

[App page](https://appshunter.io/ios/app/stillr-pomodoro-study-timer/id6785648945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stillr Plus | $2.99 | one-time |


## Frequently asked questions

### Is iWorkUntil free?

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

### Is Stillr free?

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

### Do iWorkUntil or Stillr have ads?

Neither iWorkUntil nor Stillr shows ads.

### Which is updated more often, iWorkUntil or Stillr?

iWorkUntil ships an update every 8 days, and Stillr every 6 weeks. Most recently, iWorkUntil was updated on October 18, 2026 and Stillr on October 15, 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.*