# 4Level — Your fitness level, 1 to 100

> 4Level turns your Strava activities into a clear picture of your fitness. Developed by Robert Poetzsch under the RobSpace brand.

## About

4Level is an iPhone app for runners and cyclists. It loads your activities from your own Strava account and turns them into one fitness level from 1 to 100, calculated for every day since your first activity.

- Website: https://4level.app.robspace.de/
- Privacy policy: https://4level.app.robspace.de/#privacy-policy
- Support: support@robspace.de
- Developer: Robert Poetzsch, Hofheim am Taunus, Germany
- Availability: not yet in the App Store ("coming soon")

## Key Features

- Level 1 to 100 from fitness (training load over six weeks), capacity (running VO2max or cycling watts per kilo) and consistency (trained weeks out of the last twelve)
- Fitness, fatigue and form (CTL, ATL, TSB) with a plain-language hint
- Race predictions for 5 km, 10 km, half marathon and marathon
- Yearly distance goals, year-over-year comparison, weekly volume and records for running and cycling
- All activities in one searchable list with the training load each added
- Demo mode without any account

## Privacy

No account, no server, no analytics, no ads, no third-party SDKs. Data goes from Strava to the device and stays there; the Strava access is kept in the iOS Keychain. The developer receives none of your data. Requires a Strava account; 4Level is not affiliated with Strava. The level is a training aid, not a medical assessment.