# Windmill Bike vs Rhythma

The clearest difference is in-app purchases: Windmill Bike at none against Rhythma's 2. Rhythma's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Rhythma sells 2 in-app purchases, starting at $2.99 per month. Windmill Bike asks for nothing beyond the download.

Windmill Bike ships an update every 3 months, Rhythma every 2 weeks. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Windmill Bike | Rhythma |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 69 MB | 31 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [X-Bike B.V.](https://appshunter.io/developer/1445887980) | [Iuliana Iagodka](https://appshunter.io/developer/6773324497) |

## What reviewers say

### Windmill Bike

[App page](https://appshunter.io/ios/app/windmill-bike/id1493187159)

Easily rent and ride a bike to explore Kinderdijk. Reserve and unlock a bike at designated parking spots to begin your adventure in minutes.

**Highlights:** Bike reservation, Unlock bikes remotely, Multiple parking locations, Quick signup process, Explore Kinderdijk

**Features:** Apple Wallet

**In-app purchases:** none


### Rhythma

[App page](https://appshunter.io/ios/app/rhythma-cycle-and-plans/id6802549751)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rhythma Plus Monthly | $2.99 | per month |
| Rhythma Plus Annual | $14.99 | per year |


## Frequently asked questions

### Is Windmill Bike free?

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

### Is Rhythma free?

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

### Do Windmill Bike or Rhythma have ads?

Neither Windmill Bike nor Rhythma shows ads.

### Which is updated more often, Windmill Bike or Rhythma?

Windmill Bike ships an update every 3 months, and Rhythma every 2 weeks. Most recently, Windmill Bike was updated on November 3, 2026 and Rhythma on November 6, 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.*