# Jump99 — Training Shoe

> Training shoes designed to enhance calf muscle strength and athletic performance. (iPhone/iPad app by Innovent Inc..)

- Source: https://appshunter.io/ios/app/jump99/id1488584915 (this page in markdown: same URL + `.md`)
- Developer: [Innovent Inc.](https://appshunter.io/developer/1488584914)
- Category: Health & Fitness
- Price: Free
- Rating: 4.17/5 from 6 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 42 MB
- Languages: English
- Released: 2020-01-28
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/jump99/id1488584915/reviews.md

## What is Jump99?

When walking and running in regular shoes, 30% of the weight is supported by our calves as our heels tend to take on the rest of the load. While using the Jump99 shoes, 100% of the weight in our body is supported by our calves. With Jump99 training shoes, the heel factor gets taken away. It feels like the user is always on his/her “tip toes” as the shoes forces them to rely heavily on the calf muscles. This shoe is not only made for people who look to become better at jumping, but actually can improve many aspects of an athlete. The Jump 99 training shoes mainly work to increase fast twitch muscle fibers (for explosive power), increase calve mass and definition,increase reactive strength and ability, improve sprint speed, and increase vertical jump. These several aspects can help people improve their athleticism and abilities for practically every sport.

## Key features

- Shifts weight support to calf muscles
- Increases fast twitch muscle fibers
- Builds calf mass and definition
- Improves sprint speed
- Enhances vertical jump
- Boosts reactive strength

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/jump99/id1488584915/reviews.md

### 5/5 — Nice

*2020-09-01*

Haven't had any problems yet and hopefully I wont. Great for my workouts and vertical!

### 4/5 — It’s not bad

*2020-08-09*

It’s a bit glitchy but it has good workouts for my vertical jump

## Frequently asked questions about Jump99

### What is the main benefit of Jump99 shoes?

Jump99 shoes are designed to shift 100% of your body weight support to your calf muscles, helping to increase explosive power, calf mass, sprint speed, and vertical jump.

### Who can benefit from using Jump99 shoes?

Athletes looking to improve their jumping ability, sprint speed, and overall athleticism for practically any sport can benefit from using Jump99 training shoes.

### What specific athletic aspects does Jump99 aim to improve?

Jump99 training shoes focus on increasing fast twitch muscle fibers for explosive power, building calf mass and definition, improving reactive strength, enhancing sprint speed, and increasing vertical jump.

### What devices does Jump99 support?

Jump99 is available for iPhone and iPod devices.

### What is the age rating for Jump99?

Jump99 has an age rating of 4+.

### When was Jump99 last updated?

Jump99 was last updated on January 29, 2020, with version 1.0.

### What is the user rating for Jump99?

Jump99 has a rating of 4.2 stars from 6 ratings.

### Does Jump99 have ads?

No, Jump99 does not contain advertisements.

## Version history (last 1 release)

### 1.0 — 2020-01-29

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 2026-06-10.*