# Scientific Timer vs Scrumlo

The clearest difference is update cadence: Scrumlo at every 2 days against Scientific Timer's every 16 months. Scrumlo also leads on device support (4 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scientific Timer costs $0.99 and Scrumlo $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scientific Timer ships an update every 16 months, Scrumlo every 2 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Scientific Timer | Scrumlo |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 days** |
| Size | 8 MB | 5 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPhone | **iPhone, iPad, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Stephane Boutet](https://appshunter.io/developer/1794014850) | [Comsect](https://appshunter.io/developer/1783730958) |

## What reviewers say

### Scientific Timer

[App page](https://appshunter.io/ios/app/scientific-timer/id6741395405)

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

**In-app purchases:** none


### Scrumlo

[App page](https://appshunter.io/ios/app/scrumlo/id6752125499)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Scientific Timer free?

Scientific Timer costs $0.99, with no in-app purchases.

### Is Scrumlo free?

Scrumlo costs $0.99, with no in-app purchases.

### Do Scientific Timer or Scrumlo have ads?

Neither Scientific Timer nor Scrumlo shows ads.

### Which is updated more often, Scientific Timer or Scrumlo?

Scientific Timer ships an update every 16 months, and Scrumlo every 2 days. Most recently, Scientific Timer was updated on November 8, 2026 and Scrumlo on November 5, 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.*