# Fertility Window Planner vs SleepBlend AI

The clearest difference is rating: SleepBlend AI at 5.0 against Fertility Window Planner's 4.0. On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Fertility Window Planner sells 3 in-app purchases, starting at $6.99 per month and SleepBlend AI sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

SleepBlend AI holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Fertility Window Planner | SleepBlend AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/fertility-window-planner/id6792720752/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleepblend-ai/id6798781321/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Freemium | Freemium |
| Size | 37 MB | 42 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASHOK KUMAR](https://appshunter.io/developer/6787239811) | [Christian Adrian Harvey-Michael](https://appshunter.io/developer/6798760306) |

## What reviewers say

### Fertility Window Planner

[App page](https://appshunter.io/ios/app/fertility-window-planner/id6792720752)

This app helps you identify your fertile window for conception through private data logging and transparent prediction engines. It visualizes your cycle data, including basal body temperature and cervical mucus, to show your most fertile days and predicted ovulation. Core features are free, with an optional subscription for advanced insights and history.

**Highlights:** Log basal body temperature, cervical mucus, and test results, Visualize fertile window and predicted ovulation day, Transparent prediction engine with chart explanations, Private data storage with export and delete options, Optional subscription for full cycle history and insights

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fertility Planner Pro Monthly | $6.99 | per month |
| Fertility Planner Pro Annual | $39.99 | per year |
| Fertility Window Planner | $39.99 | per year |


### SleepBlend AI

[App page](https://appshunter.io/ios/app/sleepblend-ai/id6798781321)

Create personalized soundscapes for sleep with a multi-layer mixer. Track your sleep quality and discover which sounds help you drift off faster. Enjoy a gentle fade-out timer and on-device processing for privacy.

**Highlights:** Customizable multi-layer sound mixer, Real-time sound generation, Gentle fade-out sleep timer, On-device sleep quality check-in, Personalized sound recommendations, Sleep Mix Score tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SleepBlend Pro Monthly | $9.99 | per month |
| SleepBlend Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is Fertility Window Planner free?

Fertility Window Planner is free to download, with in-app purchases available.

### Is SleepBlend AI free?

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

### Which has better reviews, Fertility Window Planner or SleepBlend AI?

SleepBlend AI is rated higher. Fertility Window Planner averages 4.0 out of 5 from 1 ratings, while SleepBlend AI averages 5.0 from 1 ratings.

### Do Fertility Window Planner or SleepBlend AI have ads?

Neither Fertility Window Planner nor SleepBlend AI shows ads.

---

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