# Transform40 Coaching vs Vitamin D Sun Tracker

The clearest difference is update cadence: Vitamin D Sun Tracker at weekly against Transform40 Coaching's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Transform40 Coaching sells 1 in-app purchase, starting at $99.99 per month and Vitamin D Sun Tracker sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Transform40 Coaching ships an update every 3 months, Vitamin D Sun Tracker weekly. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Transform40 Coaching | Vitamin D Sun Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (9 ratings)](https://appshunter.io/ios/app/vitamin-d-sun-tracker-bask/id6758405235/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 52 MB | 42 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [BODIES BY TJ PTY LTD](https://appshunter.io/developer/1415151504) | [Greycloud LLC](https://appshunter.io/developer/1767904895) |

## What reviewers say

### Transform40 Coaching

[App page](https://appshunter.io/ios/app/transform40-coaching/id6451001631)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $99.99 | per month |


### Vitamin D Sun Tracker

[App page](https://appshunter.io/ios/app/vitamin-d-sun-tracker-bask/id6758405235)

This app estimates your Vitamin D intake from sun exposure and supplements. It provides real-time UV index, weather, and personalized guidance on optimal sun times and duration to prevent sunburn. Track your progress with historical data and insights.

**Highlights:** Real-time Vitamin D estimates, Live UV Index and weather integration, Personalized sun timer with sunburn guidance, 48-hour UV forecast for optimal exposure, Supplement and cofactor tracking, Historical data and trend analysis, Optional Apple Health integration

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yearly | $24.99 | per year |
| Yearly | $29.99 | per year |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Transform40 Coaching free?

Transform40 Coaching is free to download, with in-app purchases available.

### Is Vitamin D Sun Tracker free?

Vitamin D Sun Tracker is free to download, with in-app purchases available.

### Do Transform40 Coaching or Vitamin D Sun Tracker have ads?

Neither Transform40 Coaching nor Vitamin D Sun Tracker shows ads.

### Which is updated more often, Transform40 Coaching or Vitamin D Sun Tracker?

Transform40 Coaching ships an update every 3 months, and Vitamin D Sun Tracker weekly. Most recently, Transform40 Coaching was updated on October 19, 2026 and Vitamin D Sun Tracker on October 15, 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.*