# Purese vs Aurora Tracker (Scientific)

Purese and Aurora Tracker (Scientific) are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Purese | Aurora Tracker (Scientific) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Size | 16 MB | 31 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pablo Pantoja](https://appshunter.io/developer/1809880113) | [Jansen Teng Weng Nang](https://appshunter.io/developer/1886421316) |

## What reviewers say

### Purese

[App page](https://appshunter.io/ios/app/purese/id6744907444)

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

**In-app purchases:** none


### Aurora Tracker (Scientific)

[App page](https://appshunter.io/ios/app/aurora-tracker-scientific/id6760826302)

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

**In-app purchases:** none


## Frequently asked questions

### Is Purese free?

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

### Is Aurora Tracker (Scientific) free?

Aurora Tracker (Scientific) is free to download, with no in-app purchases.

### Do Purese or Aurora Tracker (Scientific) have ads?

Neither Purese nor Aurora Tracker (Scientific) shows ads.

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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.*