# Assembly Bristol vs Willow Chiropractic

The clearest difference is update cadence: Willow Chiropractic at every 3 weeks against Assembly Bristol's every 11 months. Assembly Bristol's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Assembly Bristol ships an update every 11 months, Willow Chiropractic every 3 weeks. The most recent releases landed on October 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Assembly Bristol | Willow Chiropractic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 3 weeks** |
| Size | 249 MB | 107 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [SMART SPACES GLOBAL LTD](https://appshunter.io/developer/1061144275) | [Willow Chiropractic Partnership Limited](https://appshunter.io/developer/1777988071) |

## What reviewers say

### Assembly Bristol

[App page](https://appshunter.io/ios/app/assembly-bristol/id6450954358)

**Features:** Apple Wallet

**In-app purchases:** none


### Willow Chiropractic

[App page](https://appshunter.io/ios/app/willow-chiropractic/id6737799141)

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

**In-app purchases:** none


## Frequently asked questions

### Is Assembly Bristol free?

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

### Is Willow Chiropractic free?

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

### Do Assembly Bristol or Willow Chiropractic have ads?

Neither Assembly Bristol nor Willow Chiropractic shows ads.

### Which is updated more often, Assembly Bristol or Willow Chiropractic?

Assembly Bristol ships an update every 11 months, and Willow Chiropractic every 3 weeks. Most recently, Assembly Bristol was updated on October 19, 2026 and Willow Chiropractic 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.*