# Back Workout & Posture Fix vs By Then

The clearest difference is ads: By Then at none against Back Workout & Posture Fix's shown. Back Workout & Posture Fix's advantage is update cadence (every 6 weeks vs every 6 months) and device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Back Workout & Posture Fix sells 13 in-app purchases, starting at $4.99 per 7 days and By Then sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Back Workout & Posture Fix ships an update every 6 weeks, By Then every 6 months. The most recent releases landed on September 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Back Workout & Posture Fix | By Then |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (18 ratings)](https://appshunter.io/ios/app/back-workout-and-posture-fix/id1534037130/reviews)** | — |
| Number of ratings | **18** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 152 MB | 6 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZipoApps](https://appshunter.io/developer/1671444635) | [Michael Lysons](https://appshunter.io/developer/469522690) |

## What reviewers say

### Back Workout & Posture Fix

[App page](https://appshunter.io/ios/app/back-workout-and-posture-fix/id1534037130)

This app offers targeted exercises and routines to alleviate back pain, improve posture, and strengthen the spine. It provides personalized workout plans, expert guidance, and progress tracking for a healthier back.

**Highlights:** Alleviate back pain exercises, Posture correction techniques, Spine strengthening routines, Customized workout plans, Video demonstrations, Progress tracking, Daily reminders

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Special annual deal | $4.99 | per year |
| Monthly with a discount | $5.99 | per month |
| Unlimited Access | $8.99 | per 7 days |
| 3 Months discount | $9.99 | per 3 months |
| Monthly subscription | $14.99 | per month |
| Unlimited Access | $19.99 | per year |
| Unlimited Access | $29.99 | per month |
| Annual subscription | $29.99 | per year |
| Unlimited Access | $39.99 | per year |
| Unlimited Access | $49.99 | per year |
| Annual subscription | $49.99 | per year |
| Remove ads forever | $1.99 | one-time |


### By Then

[App page](https://appshunter.io/ios/app/by-then/id6748918554)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all features | $5.00 | one-time |


## Frequently asked questions

### Is Back Workout & Posture Fix free?

Back Workout & Posture Fix is free to download, with in-app purchases available.

### Is By Then free?

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

### Do Back Workout & Posture Fix or By Then have ads?

Back Workout & Posture Fix shows ads; By Then does not.

### Which is updated more often, Back Workout & Posture Fix or By Then?

Back Workout & Posture Fix ships an update every 6 weeks, and By Then every 6 months. Most recently, Back Workout & Posture Fix was updated on September 25, 2026 and By Then on October 8, 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.*