# CalcuRun vs Runblox

The clearest difference is in-app purchases: Runblox at none against CalcuRun's 5. Runblox also leads on iOS requirement (9.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. CalcuRun sells 5 one-off in-app purchases. Runblox asks for nothing beyond the download.

## The numbers

| Metric | CalcuRun | Runblox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/calcurun/id1554474187/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Monetization | Free | — |
| Size | 2 MB | 48 MB |
| Requires iOS | 18.6 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Joseph Iannazzone](https://appshunter.io/developer/1554474189) | [Tigertech AB](https://appshunter.io/developer/1614494876) |

## What reviewers say

### CalcuRun

[App page](https://appshunter.io/ios/app/calcurun/id1554474187)

This app helps runners predict race times, plan training paces, and calculate race splits. It offers a science-based approach to training, with predictions based on recent performance. All calculations are done on-device for privacy.

**Highlights:** Predict race times based on recent performance, Plan workout paces, Calculate race splits, Support for custom race distances, iCloud sync across devices, On-device calculations for privacy

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Mile | $0.99 | one-time |
| 5K | $1.99 | one-time |
| Turkey Trot | $3.99 | one-time |
| Half Marathon | $5.99 | one-time |
| Marathon | $9.99 | one-time |


### Runblox

[App page](https://appshunter.io/ios/app/runblox/id1614494874)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalcuRun free?

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

### Is Runblox free?

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

### Do CalcuRun or Runblox have ads?

Neither CalcuRun nor Runblox shows ads.

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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.*