# ExRate Calculator vs Dark Digits

The clearest difference is ads: Dark Digits at none against ExRate Calculator's shown. ExRate Calculator's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ExRate Calculator ships an update every 6 weeks, Dark Digits every 2 months. The most recent releases landed on October 18, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | ExRate Calculator | Dark Digits |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 34 MB | 4 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Kam To Cheng](https://appshunter.io/developer/1503889932) | [YMMV](https://appshunter.io/developer/1224453829) |

## What reviewers say

### ExRate Calculator

[App page](https://appshunter.io/ios/app/exrate-calculator/id6473137992)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dark Digits

[App page](https://appshunter.io/ios/app/dark-digits/id6744330793)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ExRate Calculator free?

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

### Is Dark Digits free?

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

### Do ExRate Calculator or Dark Digits have ads?

ExRate Calculator shows ads; Dark Digits does not.

### Which is updated more often, ExRate Calculator or Dark Digits?

ExRate Calculator ships an update every 6 weeks, and Dark Digits every 2 months. Most recently, ExRate Calculator was updated on October 18, 2026 and Dark Digits on October 14, 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.*