# TraceCase 2 vs BioStar Air

The clearest difference is rating: BioStar Air at 5.0 against TraceCase 2's 1.0. BioStar Air also leads on update cadence (every 6 weeks vs every 3 months). TraceCase 2's advantage is iOS requirement (14.0 vs 16.4). On price, ratings volume, 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.

BioStar Air holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TraceCase 2 ships an update every 3 months, BioStar Air every 6 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | TraceCase 2 | BioStar Air |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/tracecase-2/id1447475899/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/biostar-air/id6745057397/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 56 MB | 133 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [COMPRION GmbH](https://appshunter.io/developer/1245069090) | [SUPREMA](https://appshunter.io/developer/1027628414) |

## What reviewers say

### TraceCase 2

[App page](https://appshunter.io/ios/app/tracecase-2/id1447475899)

Organize, export, and open recorded traces from a TraceCase device. This utility app works in conjunction with a separate hardware device to manage your recorded data.

**Highlights:** Organize recorded traces, Export recorded traces, Open recorded traces, Works with TraceCase device, Data management

**Features:** Vision Pro support

**In-app purchases:** none


### BioStar Air

[App page](https://appshunter.io/ios/app/biostar-air/id6745057397)

Transform your smartphone into a secure mobile key for access control systems. Easily unlock doors at your office, gym, or school with a simple tap. Manage multiple credentials and ensure security with instant revocation options.

**Highlights:** Unlock doors with your phone, Works when phone is locked, Store multiple location credentials, Instant credential revocation, More secure than keycards

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

**In-app purchases:** none


## Frequently asked questions

### Is TraceCase 2 free?

TraceCase 2 is free to download, with no in-app purchases.

### Is BioStar Air free?

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

### Which has better reviews, TraceCase 2 or BioStar Air?

BioStar Air is rated higher. TraceCase 2 averages 1.0 out of 5 from 1 ratings, while BioStar Air averages 5.0 from 1 ratings.

### Do TraceCase 2 or BioStar Air have ads?

Neither TraceCase 2 nor BioStar Air shows ads.

### Which is updated more often, TraceCase 2 or BioStar Air?

TraceCase 2 ships an update every 3 months, and BioStar Air every 6 weeks. Most recently, TraceCase 2 was updated on November 2, 2026 and BioStar Air on October 30, 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.*