# PJI Database vs OrthoAxis

The clearest difference is update cadence: PJI Database at every 4 months against OrthoAxis's every 14 months. PJI Database also leads on iOS requirement (10.0 vs 12.4). On price, ads, in-app purchases and device support there is nothing between them.

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

PJI Database ships an update every 4 months, OrthoAxis every 14 months. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PJI Database | OrthoAxis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 14 months |
| Size | 17 MB | 5 MB |
| Requires iOS | **10.0** | 12.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [GARMENMED, SCP](https://appshunter.io/developer/1178687025) | [OrthoAxis, LLC](https://appshunter.io/developer/1475345186) |

## What reviewers say

### PJI Database

[App page](https://appshunter.io/ios/app/pji-database/id1331588615)

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

**In-app purchases:** none


### OrthoAxis

[App page](https://appshunter.io/ios/app/orthoaxis/id1475345187)

**In-app purchases:** none


## Frequently asked questions

### Is PJI Database free?

PJI Database is free to download, with no in-app purchases.

### Is OrthoAxis free?

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

### Do PJI Database or OrthoAxis have ads?

Neither PJI Database nor OrthoAxis shows ads.

### Which is updated more often, PJI Database or OrthoAxis?

PJI Database ships an update every 4 months, and OrthoAxis every 14 months. Most recently, PJI Database was updated on September 19, 2026 and OrthoAxis on September 10, 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.*