# Calc Run vs Forerunner

The clearest difference is ads: Forerunner at none against Calc Run's shown. Forerunner also leads on update cadence (every 3 days vs every 9 days). Calc Run's advantage is iOS requirement (17.6 vs 26.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Calc Run sells 3 in-app purchases, starting at $1.99 per month and Forerunner sells 5 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Calc Run against 5.0 for Forerunner. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews are what separate them: 92% of Calc Run's written reviews are positive against 100% of Forerunner's.

Calc Run ships an update every 9 days, Forerunner every 3 days. The most recent releases landed on September 22, 2026 and July 26, 2026 respectively.

## The numbers

| Metric | Calc Run | Forerunner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/calc-run-running-tracker/id6742862170/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/forerunner-running-tracker/id6745802851/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | 92.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 63 MB | 55 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [PacoStudio](https://appshunter.io/developer/1800355775) | [Forerunner](https://appshunter.io/developer/1813997430) |

## What reviewers say

### Calc Run

[App page](https://appshunter.io/ios/app/calc-run-running-tracker/id6742862170)

This app helps you build a consistent running habit with goal setting, streak tracking, and advanced performance analytics. It offers features like a cadence metronome, interval training, and detailed post-run visualizations to enhance your running experience.

**Highlights:** Weekly goals and streak tracking, Cadence metronome, Interval training, 3D route replays, Performance analytics, Gear tracking, Apple Watch integration

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $17.99 | per year |
| Lifetime Subscription | $29.99 | one-time |


### Forerunner

[App page](https://appshunter.io/ios/app/forerunner-running-tracker/id6745802851)

This app helps runners improve performance with VDOT analysis and condition management. Track progress, adjust training, and monitor fatigue to prevent injuries and run smarter. It offers customizable data analysis and home screen widgets for easy access to your running records.

**Highlights:** VDOT-based precision analysis, Customizable periodic analysis, Fatigue & condition monitoring, Home screen widgets, Full VoiceOver support

**Features:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| Yearly | $29.99 | per year |
| Lifetime | $49.99 | one-time |
| Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Calc Run free?

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

### Is Forerunner free?

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

### Which has better reviews, Calc Run or Forerunner?

Calc Run and Forerunner are both rated 5.0 out of 5 on the App Store, from 4 and 3 ratings respectively.

### Do Calc Run or Forerunner have ads?

Calc Run shows ads; Forerunner does not.

### Which is updated more often, Calc Run or Forerunner?

Calc Run ships an update every 9 days, and Forerunner every 3 days. Most recently, Calc Run was updated on September 22, 2026 and Forerunner on July 26, 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.*