# Biotrails Walking Tours vs Guide Sofia Audio Tours

The clearest difference is in-app purchases: Biotrails Walking Tours at none against Guide Sofia Audio Tours's 2. Guide Sofia Audio Tours's advantage is update cadence (every 2 weeks vs every 4 months) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Guide Sofia Audio Tours sells 2 in-app purchases, starting at $9.99 per month. Biotrails Walking Tours asks for nothing beyond the download.

Biotrails Walking Tours ships an update every 4 months, Guide Sofia Audio Tours every 2 weeks. The most recent releases landed on September 10, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Biotrails Walking Tours | Guide Sofia Audio Tours |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 136 MB | 96 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JOSE MANUEL MELO DA CUNHA](https://appshunter.io/developer/1519932841) | [ObsidianBloom](https://appshunter.io/developer/1851998193) |

## What reviewers say

### Biotrails Walking Tours

[App page](https://appshunter.io/ios/app/biotrails-walking-tours/id1519932839)

**In-app purchases:** none


### Guide Sofia Audio Tours

[App page](https://appshunter.io/ios/app/guide-sofia-audio-tours/id6748287909)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month access premium | $9.99 | per month |
| One Year access premium | $34.99 | per year |


## Frequently asked questions

### Is Biotrails Walking Tours free?

Biotrails Walking Tours is free to download, with no in-app purchases.

### Is Guide Sofia Audio Tours free?

Guide Sofia Audio Tours is free to download, with in-app purchases available.

### Do Biotrails Walking Tours or Guide Sofia Audio Tours have ads?

Neither Biotrails Walking Tours nor Guide Sofia Audio Tours shows ads.

### Which is updated more often, Biotrails Walking Tours or Guide Sofia Audio Tours?

Biotrails Walking Tours ships an update every 4 months, and Guide Sofia Audio Tours every 2 weeks. Most recently, Biotrails Walking Tours was updated on September 10, 2026 and Guide Sofia Audio Tours on September 23, 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.*