# Sleep Light Pro vs Hairo

The clearest difference is in-app purchases: Sleep Light Pro at none against Hairo's 2. Sleep Light Pro also leads on iOS requirement (8.0 vs 15.5). Hairo's advantage is review sentiment (100% vs 67%) and update cadence (every 10 days vs every 14 months). On price, ads and device support there is nothing between them.

Both are free to download. Hairo sells 2 in-app purchases, starting at $14.99 per month. Sleep Light Pro asks for nothing beyond the download.

Sleep Light Pro ships an update every 14 months, Hairo every 10 days. The most recent releases landed on September 23, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Sleep Light Pro | Hairo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/sleep-light-pro/id1035640147/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 26 MB | 160 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Seligman Ventures Global Limited](https://appshunter.io/developer/1347937745) | [HairoLabs](https://appshunter.io/developer/1656626124) |

## What reviewers say

### Sleep Light Pro

[App page](https://appshunter.io/ios/app/sleep-light-pro/id1035640147)

Drift off to sleep with calming animations and sounds designed to mimic natural light. The app gradually fades brightness and sound to match your sleep pattern, offering a simple interface and a full night clock option.

**Highlights:** Northern Light style animations, Optional relaxing sounds, Gradual fade of sound and brightness, Customizable sleep preferences, Full night clock option, Simple interface

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

**In-app purchases:** none


### Hairo

[App page](https://appshunter.io/ios/app/hairo/id6446069241)

This app helps users combat hair loss and thinning. It offers tools to track hair growth, receive personalized advice, and learn about hair care treatments. Users can monitor progress and set goals for healthier, fuller hair.

**Highlights:** Hair growth tracking, Personalized recommendations, Educational articles, Scalp photo taking, Goal setting

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hairo Premium Monthly | $14.99 | per month |
| Hairo Premium Annual | $99.99 | per year |


## Frequently asked questions

### Is Sleep Light Pro free?

Sleep Light Pro is free to download, with no in-app purchases.

### Is Hairo free?

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

### Do Sleep Light Pro or Hairo have ads?

Neither Sleep Light Pro nor Hairo shows ads.

### Which is updated more often, Sleep Light Pro or Hairo?

Sleep Light Pro ships an update every 14 months, and Hairo every 10 days. Most recently, Sleep Light Pro was updated on September 23, 2026 and Hairo on September 30, 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.*