# JustLift Pro vs SIX13Studio

The clearest difference is in-app purchases: SIX13Studio at none against JustLift Pro's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. JustLift Pro sells 2 in-app purchases, starting at $4.99 per month. SIX13Studio asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | JustLift Pro | SIX13Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/six13studio/id6767050546/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | — | Free |
| Size | 41 MB | 121 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [David Owens](https://appshunter.io/developer/1854157911) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### JustLift Pro

[App page](https://appshunter.io/ios/app/justlift-pro/id6757244336)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JustLift Pro Monthly | $4.99 | per month |
| JustLift Pro Yearly | $39.99 | per year |


### SIX13Studio

[App page](https://appshunter.io/ios/app/six13studio/id6767050546)

Experience high-intensity, low-impact full-body workouts designed for all fitness levels. Book classes, track progress, and manage your membership in a supportive, judgment-free community.

**Highlights:** Book and manage classes, View class schedules and instructors, Track fitness progress, Receive studio updates, Manage membership

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

**In-app purchases:** none


## Frequently asked questions

### Is JustLift Pro free?

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

### Is SIX13Studio free?

SIX13Studio is free to download, with no in-app purchases.

### Do JustLift Pro or SIX13Studio have ads?

Neither JustLift Pro nor SIX13Studio shows ads.

### Which is updated more often, JustLift Pro or SIX13Studio?

JustLift Pro ships an update every 4 months, and SIX13Studio every 4 months. Most recently, JustLift Pro was updated on October 28, 2026 and SIX13Studio on October 25, 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.*