# Running Toolbox — Calculator, MAS, VDOT, VO2max

> Calculator, MAS, VDOT, VO2max (iPhone/iPad app by Stephane Vergeot.)

- Source: https://appshunter.io/ios/app/running-toolbox/id6447079904 (this page in markdown: same URL + `.md`)
- Developer: [Stephane Vergeot](https://appshunter.io/developer/1680252410)
- Category: Sports, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 29 MB
- Languages: American English
- Released: 2023-04-20
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/running-toolbox/id6447079904/reviews.md

## What is Running Toolbox?

A set of tools to calculate target distance/duration/pace:

* Select a duration and a speed => distance calculation,
* Select a distance and a speed => duration calculation,
* Select a duration and a distance => speed calculation,
* Display/edit your paces in km/h, mph or min:sec/km, min:sec/mile.

For your split sessions, or for your racing goals:

* Select a distance: 100m, 200m, ..., 1km, 5km, ..., half marathon, etc.,
* Find out related work time or race goal, based on a percentage of your MAS: 90%, 100%, 110%, etc.

Input or discover your VDOT / VO2max score:

* Discover recommended training speeds relating to your VDOT / VO2max,
* Input your performance for a past race and estimate your performance for an upcoming race, of a different distance,

Store your most useful data in your favorites:

* Order your favorites as you wish,
* Delete or modify previously saved favorites,

Check out the running world records:

* Men/Women,
* Indoor/Outdoor,
* Who? When? Where?
* Store records in your favorites, 

More features to come!... ^_^


## Version history (last 4 releases)

### 1.3 — 2023-11-20

Improved Unit & MAS pages with new features
Improved overall UI/UX
Fixed couple issues

### 1.2 — 2023-10-11

Added new page called Units, to convert km/h to min:sec, etc.
Added tooltips all along, as a full user-manual,
Improved overall user interface/experience,
Updated World Records,
Added Italian support.

### 1.1 — 2023-07-22

Added VDOT/VO2max tab,
Added sorting capability on distance/duration/speed on all tabs,
Many UI/UX improvements.

### 1.0 — 2023-04-26

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*