# Back Rx vs TZ NYC

The clearest difference is in-app purchases: TZ NYC at none against Back Rx's 3. TZ NYC also leads on update cadence (every 2 weeks vs every 2 months) and ratings volume (9 vs 1). Back Rx's advantage is iOS requirement (14.0 vs 17.6). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Back Rx sells 3 in-app purchases, starting at $6.99 per month. TZ NYC asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Back Rx against 5.0 for TZ NYC. That said, the two scores are not equally well evidenced: TZ NYC has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Back Rx ships an update every 2 months, TZ NYC every 2 weeks. The most recent releases landed on June 1, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Back Rx | TZ NYC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/back-rx/id1484288564/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/tz-nyc/id1597271403/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Freemium | **Free** |
| Size | 72 MB | 260 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Heal Factory LLC](https://appshunter.io/developer/1484288563) | [T.Z. NYC](https://appshunter.io/developer/1597271405) |

## What reviewers say

### Back Rx

[App page](https://appshunter.io/ios/app/back-rx/id1484288564)

This app offers a clinically proven program for back pain relief, combining guided physiotherapy routines with emotional support. It helps users improve mobility, reduce pain, and understand their condition through educational insights and a peer community.

**Highlights:** Guided video physiotherapy routines, Progress tracking (pain, movement, wellbeing), Educational insights on back health, Supportive peer community, Mind-body approach to healing

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $6.99 | per month |
| Semi-annual subscription | $34.99 | per 6 months |
| Annual subscription | $59.99 | per year |


### TZ NYC

[App page](https://appshunter.io/ios/app/tz-nyc/id1597271403)

Track and store your fitness club workouts, monitor real-time training data, and view progress reports. Syncs with heart rate sensors and Apple Health for comprehensive analysis and competitive rankings.

**Highlights:** Workout tracking and storage, Real-time training monitoring, Heart rate sensor integration, Cloud synchronization for progress reports, Club rankings and leaderboards, Activity sign-up and credit purchases, Apple Health integration

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Back Rx free?

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

### Is TZ NYC free?

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

### Which has better reviews, Back Rx or TZ NYC?

Back Rx and TZ NYC are both rated 5.0 out of 5 on the App Store, from 1 and 9 ratings respectively.

### Do Back Rx or TZ NYC have ads?

Neither Back Rx nor TZ NYC shows ads.

### Which is updated more often, Back Rx or TZ NYC?

Back Rx ships an update every 2 months, and TZ NYC every 2 weeks. Most recently, Back Rx was updated on June 1, 2026 and TZ NYC on September 11, 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.*