# Ondi vs InLoop

Ondi and InLoop are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Ondi sells 1 one-off in-app purchase and InLoop sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ondi | InLoop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 10 MB | 55 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Blue Flame Games](https://appshunter.io/developer/523824138) | [StableVortex OU](https://appshunter.io/developer/1748310574) |

## What reviewers say

### Ondi

[App page](https://appshunter.io/ios/app/ondi-private-period-tracker/id6760896784)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cyla Premium | $7.99 | one-time |


### InLoop

[App page](https://appshunter.io/ios/app/inloop-period-tracker/id6766258530)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InLoop Premium | $2.99 | per month |
| InLoop Premium | $19.99 | per year |


## Frequently asked questions

### Is Ondi free?

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

### Is InLoop free?

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

### Do Ondi or InLoop have ads?

Neither Ondi nor InLoop shows ads.

### Which is updated more often, Ondi or InLoop?

Ondi ships an update weekly, and InLoop weekly. Most recently, Ondi was updated on October 17, 2026 and InLoop on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*