# Implant Identifier vs ACL

The clearest difference is in-app purchases: Implant Identifier at none against ACL's 3. Implant Identifier also leads on update cadence (every 3 weeks vs every 8 months). ACL's advantage is iOS requirement (10.2 vs 15.5). On price, ads and device support there is nothing between them.

Both are free to download. ACL sells 3 one-off in-app purchases. Implant Identifier asks for nothing beyond the download.

Implant Identifier ships an update every 3 weeks, ACL every 8 months. The most recent releases landed on November 6, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Implant Identifier | ACL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (278 ratings)](https://appshunter.io/ios/app/implant-identifier/id1343366864/reviews)** | — |
| Number of ratings | **278** | — |
| Positive reviews | 64.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 128 MB | 38 MB |
| Requires iOS | 15.5 | **10.2** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Devise Health](https://appshunter.io/developer/1006656243) | [Linova Software GmbH](https://appshunter.io/developer/1152971507) |

## What reviewers say

### Implant Identifier

[App page](https://appshunter.io/ios/app/implant-identifier/id1343366864)

Instantly identify orthopedic and spine implants from X-rays using AI. This app helps medical professionals recognize unknown implants, access a community of experts, and contribute to a growing library of implant data. Features include AI identification for hips, a community feed for assistance, and a filterable implant library.

**Highlights:** AI-Identify for Hips, Community Feed for Expert Help, Filterable Implant Library, Submit New Implants, My Implants History, X-ray Recognition

**Features:** Vision Pro support

**In-app purchases:** none


### ACL

[App page](https://appshunter.io/ios/app/acl-x/id1439731734)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Credit | $0.99 | one-time |
| 10 Credits | $8.99 | one-time |
| 50 Credits | $24.99 | one-time |


## Frequently asked questions

### Is Implant Identifier free?

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

### Is ACL free?

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

### Do Implant Identifier or ACL have ads?

Neither Implant Identifier nor ACL shows ads.

### Which is updated more often, Implant Identifier or ACL?

Implant Identifier ships an update every 3 weeks, and ACL every 8 months. Most recently, Implant Identifier was updated on November 6, 2026 and ACL on October 26, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*