# J17 Performance

> J17 Performance (iPhone/iPad app by 1000073741 Ontario Inc..)

- Source: https://appshunter.io/ios/app/j17-performance/id6777971857 (this page in markdown: same URL + `.md`)
- Developer: [1000073741 Ontario Inc.](https://appshunter.io/developer/6777971859)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 190 MB
- Languages: American English, Arabic, Czech, Danish, Dutch, French (France), German (Germany), Greek, Hebrew, Indonesian and 12 more
- Released: 2026-06-08
- Data updated: 2026-09-09
- User reviews in markdown: https://appshunter.io/ios/app/j17-performance/id6777971857/reviews.md

## What is J17 Performance?

Download the J17 Performance – Markham App today to plan and schedule your classes! From this mobile App, you can view class schedules and sign up for classes as well as view the studio’s location.

Optimize your time and maximize the convenience of signing up for classes from your device!

Download this App today!


## Version history (last 4 releases)

### 8.802.0 — 2026-09-08

This release is mostly us cleaning up after ourselves — a liability waiver that wasn't displaying properly, plus a few other things we've quietly tightened up behind the scenes. Quiet progress, delivered with a little humility.

### 8.801.0 — 2026-08-22

This release is mostly under-the-hood: smoother checkout and more reliable check-in. We'll keep quietly making things better.

### 8.800.0 — 2026-08-11

We cleaned up a few bugs affecting checkout, calendar syncing, and payment options. Nothing flashy here — just steady, quiet progress.

### 8.402.0 — 2026-06-08

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 2026-09-09.*