# J4F

> J4F (iPhone/iPad app by Web System Technology Srl.)

- Source: https://appshunter.io/ios/app/j4f/id1141313700 (this page in markdown: same URL + `.md`)
- Developer: [Web System Technology Srl](https://appshunter.io/developer/1062974591)
- Category: Sports, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 193 MB
- Released: 2016-09-04
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/j4f/id1141313700/reviews.md

## What is J4F?

Palestra, fitness, ginnastica posturale, centro benessere, ginnastica artistica, pilates, salsa, pump, alimentazione personalizzata, personal trainer.
http://www.palestrajump.com/


## Version history (last 5 releases)

### 3.4 — 2020-09-21

Migliorie grafiche e bugfix.

### 1.6 — 2017-04-08

***Nuove funzionalità

### 1.5 — 2017-03-20

**Risoluzione bug

### 1.4 — 2017-03-01

***Migliorie grafiche

### 1,3 — 2017-02-10

***Migliorie grafiche

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## More apps by Web System Technology Srl

- [Ecotirrena](https://appshunter.io/ios/app/ecotirrena/id1136257899)
- [LEX Camicie](https://appshunter.io/ios/app/lex-camicie/id1191334026)
- [UPizza Delivery](https://appshunter.io/ios/app/upizza-delivery/id1446457234)
- [Fox Service](https://appshunter.io/ios/app/fox-service/id1451973247)
- [Modena Giochi](https://appshunter.io/ios/app/modena-giochi/id1497284304)

All apps by Web System Technology Srl: https://appshunter.io/developer/1062974591

## Related topics

[j4f](https://appshunter.io/ios/topics/j4f)

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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 2026-05-17.*