# D Minder Pro vs Cardia Sleep

The clearest difference is ads: Cardia Sleep at none against D Minder Pro's shown. On price, in-app purchases, 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 and Cardia Sleep sells 1 in-app purchase, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | D Minder Pro | Cardia Sleep |
| --- | --- | --- |
| 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 | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 days | — |
| Monetization | Freemium | — |
| Size | 37 MB | 2 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [ontometrics](https://appshunter.io/developer/410064693) | [Tuong Nguyen](https://appshunter.io/developer/1878188325) |

## 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


### Cardia Sleep

[App page](https://appshunter.io/ios/app/cardia-sleep/id6759352829)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cardia Sleep Pro | $14.99 | per year |


## Frequently asked questions

### Is D Minder Pro free?

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

### Is Cardia Sleep free?

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

### Do D Minder Pro or Cardia Sleep have ads?

D Minder Pro shows ads; Cardia Sleep does not.

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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.*