# KOOL. vs Ovulation Tracker

The clearest difference is in-app purchases: KOOL. at none against Ovulation Tracker's 2. KOOL. also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Ovulation Tracker sells 2 in-app purchases, starting at $6.99 per month. KOOL. asks for nothing beyond the download.

## The numbers

| Metric | KOOL. | Ovulation Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | — |
| Size | 49 MB | 44 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zochil Technology](https://appshunter.io/developer/1488589261) | [adil smaili](https://appshunter.io/developer/1836932504) |

## What reviewers say

### KOOL.

[App page](https://appshunter.io/ios/app/kool/id6444498971)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ovulation Tracker

[App page](https://appshunter.io/ios/app/ovulation-tracker-lh-test-ai/id6803149504)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is KOOL. free?

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

### Is Ovulation Tracker free?

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

### Do KOOL. or Ovulation Tracker have ads?

Ovulation Tracker shows ads; KOOL. does not.

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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.*