# Runtools Calc vs Aero Endure

The clearest difference is monetization model: Runtools Calc at free against Aero Endure's freemium. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Runtools Calc against 5.0 for Aero Endure. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

Runtools Calc ships an update fortnightly, Aero Endure every 3 weeks. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Runtools Calc | Aero Endure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/runtools-calc/id6758685205/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/aero-endure/id6786558871/reviews) |
| Number of ratings | **5** | 3 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 62 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ladarius tellis](https://appshunter.io/developer/1871800577) | [Aero Studios LLC](https://appshunter.io/developer/6786558873) |

## What reviewers say

### Runtools Calc

[App page](https://appshunter.io/ios/app/runtools-calc/id6758685205)

This app simplifies running calculations for athletes and coaches. It accurately computes splits, pace, and performance metrics in a clear format, offering VO₂ max calculations and preset race distances. Train smarter with precise data without unnecessary complexity.

**Highlights:** Calculate splits for any distance and total time, View pace in multiple units (min/mi, min/km, mph, km/h), Accurate pace formatting, Preset distances for common races, VO₂ calculator with fitness insight, Clean, readable layout for quick reference

**Features:** macOS Compatibility

**In-app purchases:** none


### Aero Endure

[App page](https://appshunter.io/ios/app/aero-endure/id6786558871)

This app offers a dual experience for runners and their coaches. Athletes can track runs, monitor progress, and engage with a community. Coaches can manage rosters, assign workouts, and analyze team performance.

**Highlights:** Log runs with distance, pace, time, and route, Track running streaks and consistency, Community feed for sharing runs and cheering teammates, View trends like weekly mileage and pace progression, Sync runs automatically from connected devices, Manage athlete rosters and assign workouts, Team analytics for spotting improvement

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

**In-app purchases:** none


## Frequently asked questions

### Is Runtools Calc free?

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

### Is Aero Endure free?

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

### Which has better reviews, Runtools Calc or Aero Endure?

Runtools Calc and Aero Endure are both rated 5.0 out of 5 on the App Store, from 5 and 3 ratings respectively.

### Do Runtools Calc or Aero Endure have ads?

Neither Runtools Calc nor Aero Endure shows ads.

### Which is updated more often, Runtools Calc or Aero Endure?

Runtools Calc ships an update fortnightly, and Aero Endure every 3 weeks. Most recently, Runtools Calc was updated on October 13, 2026 and Aero Endure on October 8, 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.*