# Hello Sun vs WindDown Bedtime Ritual

The clearest difference is update cadence: Hello Sun at weekly against WindDown Bedtime Ritual's fortnightly. Hello Sun also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Hello Sun sells 2 in-app purchases, starting at $3.99 per month and WindDown Bedtime Ritual sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Hello Sun ships an update weekly, WindDown Bedtime Ritual fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Hello Sun | WindDown Bedtime Ritual |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hello-sun-vitamin-d-tracker/id6756599125/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Freemium | — |
| Size | 62 MB | 5 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyle Brammer](https://appshunter.io/developer/1861694771) | [InnovaLabWorks](https://appshunter.io/developer/1888514726) |

## What reviewers say

### Hello Sun

[App page](https://appshunter.io/ios/app/hello-sun-vitamin-d-tracker/id6756599125)

Track vitamin D intake from sunlight and supplements with safe, burn-aware timers. Offers personalized estimates and weekly progress tracking, adapting to your skin and location for optimal sun exposure.

**Highlights:** Safe sun session timers, Vitamin D IU estimates, Log supplements and sun, Adaptive acclimation, Weekly progress tracking, UV forecast planning, Winter Mode support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hello Sun Plus Monthly Subscription | $3.99 | per month |
| Hello Sun Plus Yearly Subscription | $29.99 | per year |


### WindDown Bedtime Ritual

[App page](https://appshunter.io/ios/app/winddown-bedtime-ritual/id6789964954)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WindDown Pro | $2.99 | per month |
| WindDown Pro | $19.99 | per year |
| WindDown Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Hello Sun free?

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

### Is WindDown Bedtime Ritual free?

WindDown Bedtime Ritual is free to download, with in-app purchases available.

### Do Hello Sun or WindDown Bedtime Ritual have ads?

Neither Hello Sun nor WindDown Bedtime Ritual shows ads.

### Which is updated more often, Hello Sun or WindDown Bedtime Ritual?

Hello Sun ships an update weekly, and WindDown Bedtime Ritual fortnightly. Most recently, Hello Sun was updated on October 24, 2026 and WindDown Bedtime Ritual on October 24, 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.*