# Rinne Cycle&Ovulation Tracker vs Fight&Flow Studio

The clearest difference is in-app purchases: Fight&Flow Studio at none against Rinne Cycle&Ovulation Tracker's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Rinne Cycle&Ovulation Tracker sells 2 in-app purchases, starting at $1.99 per month. Fight&Flow Studio asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Rinne Cycle&Ovulation Tracker | Fight&Flow Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 70 MB | 11 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Nathan Regui](https://appshunter.io/developer/1875352400) | [Samra Hasanovic](https://appshunter.io/developer/1889831666) |

## What reviewers say

### Rinne Cycle&Ovulation Tracker

[App page](https://appshunter.io/ios/app/rinne-cycle-and-ovulation-tracker/id6761337729)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $19.99 | per year |


### Fight&Flow Studio

[App page](https://appshunter.io/ios/app/fight-and-flow-studio/id6761470621)

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

**In-app purchases:** none


## Frequently asked questions

### Is Rinne Cycle&Ovulation Tracker free?

Rinne Cycle&Ovulation Tracker is free to download, with in-app purchases available.

### Is Fight&Flow Studio free?

Fight&Flow Studio is free to download, with no in-app purchases.

### Do Rinne Cycle&Ovulation Tracker or Fight&Flow Studio have ads?

Neither Rinne Cycle&Ovulation Tracker nor Fight&Flow Studio shows ads.

### Which is updated more often, Rinne Cycle&Ovulation Tracker or Fight&Flow Studio?

Rinne Cycle&Ovulation Tracker ships an update every 2 months, and Fight&Flow Studio every 2 months. Most recently, Rinne Cycle&Ovulation Tracker was updated on October 24, 2026 and Fight&Flow Studio on September 11, 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.*