# JT Studio Pilates vs Stack

The clearest difference is in-app purchases: JT Studio Pilates at none against Stack's 3. Stack's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stack sells 3 in-app purchases, starting at $3.99 per month. JT Studio Pilates asks for nothing beyond the download.

JT Studio Pilates ships an update every 3 weeks, Stack every 6 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | JT Studio Pilates | Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jt-studio-pilates/id6752733208/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Subscription | — |
| Size | 121 MB | 62 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Naveen Senapathi](https://appshunter.io/developer/1889130875) |

## What reviewers say

### JT Studio Pilates

[App page](https://appshunter.io/ios/app/jt-studio-pilates/id6752733208)

This fitness app combines Pilates precision with resistance training for sculpted muscles, enhanced mobility, and lasting confidence. It offers a library of on-demand workouts ranging from 10 to 40 minutes, with new classes added weekly. Train anytime, anywhere with flexible routines designed to fit any lifestyle and deliver results.

**Highlights:** On-demand video library, New classes weekly, Weekly workout schedules, Exclusive challenges and programs, Private member community, Flexible workout durations (10-40 mins)

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-routine-tracker/id6761363465)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro Monthly | $3.99 | per month |
| Stack Pro Annual | $39.99 | per year |
| Stack Pro Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is JT Studio Pilates free?

JT Studio Pilates is free to download, with no in-app purchases.

### Is Stack free?

Stack is free to download, with in-app purchases available.

### Do JT Studio Pilates or Stack have ads?

Neither JT Studio Pilates nor Stack shows ads.

### Which is updated more often, JT Studio Pilates or Stack?

JT Studio Pilates ships an update every 3 weeks, and Stack every 6 days. Most recently, JT Studio Pilates was updated on October 5, 2026 and Stack on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*