# Running Speed Calculator vs Ruby Pace

The clearest difference is in-app purchases: Ruby Pace at none against Running Speed Calculator's 1. Ruby Pace also leads on device support (3 vs 1) and iOS requirement (15.6 vs 18.6). On price, update cadence and ads there is nothing between them.

Both are free to download. Running Speed Calculator sells 1 one-off in-app purchase. Ruby Pace asks for nothing beyond the download.

Running Speed Calculator ships an update every 3 days, Ruby Pace every 2 days. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Running Speed Calculator | Ruby Pace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 4 MB | 0 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Wolff](https://appshunter.io/developer/1661481834) | [Jeremy Valensi](https://appshunter.io/developer/1598555503) |

## What reviewers say

### Running Speed Calculator

[App page](https://appshunter.io/ios/app/running-speed-calculator/id6445966765)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version | $2.99 | one-time |


### Ruby Pace

[App page](https://appshunter.io/ios/app/ruby-pace/id6743771837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Running Speed Calculator free?

Running Speed Calculator is free to download, with in-app purchases available.

### Is Ruby Pace free?

Ruby Pace is free to download, with no in-app purchases.

### Do Running Speed Calculator or Ruby Pace have ads?

Neither Running Speed Calculator nor Ruby Pace shows ads.

### Which is updated more often, Running Speed Calculator or Ruby Pace?

Running Speed Calculator ships an update every 3 days, and Ruby Pace every 2 days. Most recently, Running Speed Calculator was updated on October 8, 2026 and Ruby Pace on October 4, 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.*