# Shifter Clock App vs Ultra Light Performance Tool

The clearest difference is in-app purchases: Shifter Clock App at none against Ultra Light Performance Tool's 7. Ultra Light Performance Tool's advantage is update cadence (every 3 months vs every 22 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ultra Light Performance Tool sells 7 one-off in-app purchases. Shifter Clock App asks for nothing beyond the download.

Shifter Clock App ships an update every 22 months, Ultra Light Performance Tool every 3 months. The most recent releases landed on September 5, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Shifter Clock App | Ultra Light Performance Tool |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 3 months** |
| Size | 5 MB | 30 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shifter Verloning Nederland](https://appshunter.io/developer/419872567) | [Konstantin Ludwig](https://appshunter.io/developer/1642383019) |

## What reviewers say

### Shifter Clock App

[App page](https://appshunter.io/ios/app/shifter-clock-app/id1458003108)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ultra Light Performance Tool

[App page](https://appshunter.io/ios/app/ultra-light-performance-tool/id6464596500)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donation 1€ | $0.99 | one-time |
| Donation 1€ | $1.99 | one-time |
| Donation 1€ | $3.99 | one-time |
| Donation 1€ | $8.99 | one-time |
| Donation 1€ | $12.99 | one-time |
| Donation 1€ | $17.99 | one-time |
| Donation 1€ | $44.99 | one-time |


## Frequently asked questions

### Is Shifter Clock App free?

Shifter Clock App is free to download, with no in-app purchases.

### Is Ultra Light Performance Tool free?

Ultra Light Performance Tool is free to download, with in-app purchases available.

### Do Shifter Clock App or Ultra Light Performance Tool have ads?

Neither Shifter Clock App nor Ultra Light Performance Tool shows ads.

### Which is updated more often, Shifter Clock App or Ultra Light Performance Tool?

Shifter Clock App ships an update every 22 months, and Ultra Light Performance Tool every 3 months. Most recently, Shifter Clock App was updated on September 5, 2026 and Ultra Light Performance Tool on September 10, 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.*