# Backapp vs JustStretch | Flex & Mobility

The clearest difference is ads: Backapp at none against JustStretch | Flex & Mobility's shown. JustStretch | Flex & Mobility's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Backapp sells 2 in-app purchases, starting at $24.99 per month and JustStretch | Flex & Mobility sells 17 in-app purchases, starting at $7.49 per month. Whichever you choose, the download price is not the number that matters.

Backapp ships an update monthly, JustStretch | Flex & Mobility every 2 weeks. The most recent releases landed on October 13, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Backapp | JustStretch | Flex & Mobility |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (2.4K ratings)](https://appshunter.io/ios/app/juststretch-flex-and-mobility/id6737028992/reviews)** |
| Number of ratings | — | **2.4K** |
| Positive reviews | — | 64.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 80 MB | 104 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | +17 |
| Developer | [KODE LLC](https://appshunter.io/developer/1628314313) | [TechPioneers Limited](https://appshunter.io/developer/1760674678) |

## What reviewers say

### Backapp

[App page](https://appshunter.io/ios/app/backapp-remove-back-pain/id6469515386)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month | $24.99 | per month |
| 1 year | $99.99 | per year |


### JustStretch | Flex & Mobility

[App page](https://appshunter.io/ios/app/juststretch-flex-and-mobility/id6737028992)

This app helps you build a daily stretching habit to improve flexibility, relieve pain, and boost overall well-being. It offers guided routines, custom workout creation, and multimedia instructions for all fitness levels.

**Highlights:** Daily stretching routines, Custom workout creation, Audio, image, and video guidance, Live instructor experience, Pain relief and injury prevention, Improved posture and sleep

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Premium | $7.49 | per month |
| 1 Month Premium | $9.99 | per month |
| 1 Month Premium | $19.99 | per month |
| 3 Months Premium | $19.99 | per 3 months |
| 3 Months Premium | $29.99 | per 3 months |
| 12 Months Premium | $29.99 | per year |
| LUCKY DRAW PRIZE | $29.99 | per year |
| 12 Months Premium | $30.99 | per year |
| 12 Months Premium | $35.99 | per year |
| 12 Months Premium | $37.99 | per year |
| One Year Membership | $39.99 | per year |
| 12 Months Premium | $47.99 | per year |
| 7-Day Free Trial | $47.99 | per year |
| one year membership | $49.99 | per year |
| 12 Months Premium | $89.99 | per year |
| Stretch Guide Ebook Bundle | $9.99 | one-time |
| Stretch Guide Ebook Bundle | $12.99 | one-time |

**What reviewers like**

- 🤸‍♀️ Effective stretching routines
- 💪 Variety of exercises
- 🕰️ Guided sessions
- 🌟 Helpful for pain relief

**What reviewers complain about**

- 💰 Requires paid subscription
- 🚫 No free trial
- 🐛 App crashes and bugs
- 🤔 Inconsistent program design

**Reported bugs**

- App not working after latest update
- Inability to open app on certain devices

**Requested features**

- Preparation time before transitions
- Ability to use app on multiple devices


## Frequently asked questions

### Is Backapp free?

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

### Is JustStretch | Flex & Mobility free?

JustStretch | Flex & Mobility is free to download, with in-app purchases available.

### Do Backapp or JustStretch | Flex & Mobility have ads?

JustStretch | Flex & Mobility shows ads; Backapp does not.

### Which is updated more often, Backapp or JustStretch | Flex & Mobility?

Backapp ships an update monthly, and JustStretch | Flex & Mobility every 2 weeks. Most recently, Backapp was updated on October 13, 2026 and JustStretch | Flex & Mobility on October 20, 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.*