# Rosi vs Voltheads

The clearest difference is update cadence: Voltheads at every 4 days against Rosi's fortnightly. Voltheads also leads on iOS requirement (15.1 vs 17.7.2). 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.

Rosi ships an update fortnightly, Voltheads every 4 days. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Rosi | Voltheads |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/rosi/id1616673032/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | Free | — |
| Size | 81 MB | 70 MB |
| Requires iOS | 17.7.2 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [ioki GmbH](https://appshunter.io/developer/1489448276) | [Daniel Kopylov](https://appshunter.io/developer/1812882266) |

## What reviewers say

### Rosi

[App page](https://appshunter.io/ios/app/rosi/id1616673032)

This app offers on-demand bus rides within the Chiemgau region, allowing users to book flexible, scheduled-free transportation. Enjoy convenient, affordable travel with various payment options and accessible features.

**Highlights:** On-demand bus rides, Flexible booking, Scheduled-free travel, Zone-based pricing, Bargeldlose payment options, Wheelchair accessible vehicles

**Features:** Apple Wallet

**In-app purchases:** none


### Voltheads

[App page](https://appshunter.io/ios/app/voltheads/id6745554369)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rosi free?

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

### Is Voltheads free?

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

### Do Rosi or Voltheads have ads?

Neither Rosi nor Voltheads shows ads.

### Which is updated more often, Rosi or Voltheads?

Rosi ships an update fortnightly, and Voltheads every 4 days. Most recently, Rosi was updated on October 4, 2026 and Voltheads on October 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.*