# KruBoss Drills vs Still Timer

The clearest difference is in-app purchases: KruBoss Drills at none against Still Timer's 4. KruBoss Drills also leads on iOS requirement (15.0 vs 17.6). Still Timer's advantage is update cadence (every 8 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Still Timer sells 4 one-off in-app purchases. KruBoss Drills asks for nothing beyond the download.

KruBoss Drills ships an update every 2 months, Still Timer every 8 days. The most recent releases landed on September 8, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | KruBoss Drills | Still Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 20 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Globules Interactive Limited](https://appshunter.io/developer/978694053) | [Sergei Mitianin](https://appshunter.io/developer/1741680400) |

## What reviewers say

### KruBoss Drills

[App page](https://appshunter.io/ios/app/kruboss-drills/id1364656683)

**Features:** Vision Pro support

**In-app purchases:** none


### Still Timer

[App page](https://appshunter.io/ios/app/still-timer-interval-workout/id6757073006)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation 1$ | $0.99 | one-time |
| Donation 5$ | $4.99 | one-time |
| Donation 25$ | $24.99 | one-time |
| Donation 50$ | $49.99 | one-time |


## Frequently asked questions

### Is KruBoss Drills free?

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

### Is Still Timer free?

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

### Do KruBoss Drills or Still Timer have ads?

Neither KruBoss Drills nor Still Timer shows ads.

### Which is updated more often, KruBoss Drills or Still Timer?

KruBoss Drills ships an update every 2 months, and Still Timer every 8 days. Most recently, KruBoss Drills was updated on September 8, 2026 and Still Timer on September 18, 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.*