# Orion Tracker vs Gradzyl

The clearest difference is in-app purchases: Gradzyl at none against Orion Tracker's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Orion Tracker sells 4 in-app purchases, starting at $2.99 per month. Gradzyl asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Orion Tracker | Gradzyl |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 49 MB | 49 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Hugo Merelle](https://appshunter.io/developer/1835758386) | [Gradzyl Ltd](https://appshunter.io/developer/1890447077) |

## What reviewers say

### Orion Tracker

[App page](https://appshunter.io/ios/app/orion-tracker/id6751551294)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro – Monthly | $2.99 | per month |
| Base - Monthly | $3.99 | per month |
| Pro – Yearly | $24.99 | per year |
| Base - Yearly | $44.99 | per year |


### Gradzyl

[App page](https://appshunter.io/ios/app/gradzyl/id6761612655)

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

**In-app purchases:** none


## Frequently asked questions

### Is Orion Tracker free?

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

### Is Gradzyl free?

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

### Do Orion Tracker or Gradzyl have ads?

Neither Orion Tracker nor Gradzyl shows ads.

### Which is updated more often, Orion Tracker or Gradzyl?

Orion Tracker ships an update weekly, and Gradzyl weekly. Most recently, Orion Tracker was updated on October 30, 2026 and Gradzyl on November 5, 2026.

---

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