# Sig Figs Calculator vs Timeout

The clearest difference is in-app purchases: Sig Figs Calculator at none against Timeout's 2. Sig Figs Calculator also leads on iOS requirement (10.0 vs 26.0). Timeout's advantage is update cadence (every 5 days vs every 48 months). On price, ads and device support there is nothing between them.

Both are free to download. Timeout sells 2 in-app purchases, starting at $1.99 per 7 days. Sig Figs Calculator asks for nothing beyond the download.

Sig Figs Calculator ships an update every 48 months, Timeout every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sig Figs Calculator | Timeout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/sig-figs-calculator/id1604141218/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 25 MB | 18 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ahmad Sattar](https://appshunter.io/developer/1458483953) | [Alenka Sever](https://appshunter.io/developer/6784190961) |

## What reviewers say

### Sig Figs Calculator

[App page](https://appshunter.io/ios/app/sig-figs-calculator/id1604141218)

This free tool helps students calculate significant figures for numbers, including rounding and scientific notation. It offers a simple interface for quick and efficient mathematical work.

**Highlights:** Calculate significant figures, Round decimal numbers, Convert to E notation, Convert to Scientific Notation, Simple and easy interface, No registration required

**Features:** macOS Compatibility

**In-app purchases:** none


### Timeout

[App page](https://appshunter.io/ios/app/timeout-study-for-screen-time/id6804012855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $3.99 | per month |


## Frequently asked questions

### Is Sig Figs Calculator free?

Sig Figs Calculator is free to download, with no in-app purchases.

### Is Timeout free?

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

### Do Sig Figs Calculator or Timeout have ads?

Neither Sig Figs Calculator nor Timeout shows ads.

### Which is updated more often, Sig Figs Calculator or Timeout?

Sig Figs Calculator ships an update every 48 months, and Timeout every 5 days. Most recently, Sig Figs Calculator was updated on November 3, 2026 and Timeout on October 31, 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.*