# D Minder Pro vs Sit Minder

The clearest difference is in-app purchases: Sit Minder at none against D Minder Pro's 2. Sit Minder also leads on ads (none vs shown). D Minder Pro's advantage is update cadence (every 2 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. D Minder Pro sells 2 one-off in-app purchases. Sit Minder asks for nothing beyond the download.

D Minder Pro ships an update every 2 days, Sit Minder fortnightly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | D Minder Pro | Sit Minder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1.8K ratings)](https://appshunter.io/ios/app/d-minder-pro/id547102495/reviews)** | — |
| Number of ratings | **1.8K** | — |
| Positive reviews | 33.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Freemium | — |
| Size | 37 MB | 15 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [ontometrics](https://appshunter.io/developer/410064693) | [Timothy Wisleder](https://appshunter.io/developer/6790175415) |

## What reviewers say

### D Minder Pro

[App page](https://appshunter.io/ios/app/d-minder-pro/id547102495)

Track and manage your Vitamin D intake and sun exposure. This app calculates optimal sun exposure times based on your profile and location, and integrates with Apple Health for seamless data exchange. It also provides forecasts and notifications for vitamin D generation opportunities.

**Highlights:** Vitamin D tracking and management, Apple Health integration, Sun exposure calculation, Optimal exposure time alerts, Daily forecasts and solar position, History and future event scheduling

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DMinder Premium | $1.99 | one-time |
| Lifetime Ad Removal | $24.99 | one-time |

**What reviewers like**

- 🚀 Useful for tracking vitamin D levels
- 🌞 Helps with safe sun exposure
- 👍 Accurate calculations
- 🔋 Doesn't drain battery
- 💡 Innovative concept

**What reviewers complain about**

- 🐛 Crashes or bugs
- 🔍 Difficult to use or navigate
- 🔧 Lacks customization options
- 📊 Inaccurate data or estimates
- 💸 Paid version not worth the cost

**Reported bugs**

- App crashes on launch or during use
- Location settings not working properly
- Inconsistent data or calculations between devices
- Inability to save or sync user data
- Overcast detection not functioning correctly

**Requested features**

- Add more food options for vitamin D
- Ability to edit past sun sessions
- Provide more detailed reports and analytics
- Add reminders or notifications for sun exposure
- Allow customization of skin type and location


### Sit Minder

[App page](https://appshunter.io/ios/app/sit-minder/id6790175413)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is D Minder Pro free?

D Minder Pro is free to download, with in-app purchases available.

### Is Sit Minder free?

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

### Do D Minder Pro or Sit Minder have ads?

D Minder Pro shows ads; Sit Minder does not.

### Which is updated more often, D Minder Pro or Sit Minder?

D Minder Pro ships an update every 2 days, and Sit Minder fortnightly. Most recently, D Minder Pro was updated on October 15, 2026 and Sit Minder on October 10, 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.*