# D Minder Pro — user reviews > 671 indexed App Store user reviews of D Minder Pro by ontometrics, rated 3.90/5 from 1,685 ratings. - Source: https://appshunter.io/ios/app/d-minder-pro/id547102495/reviews - App overview in markdown: https://appshunter.io/ios/app/d-minder-pro/id547102495.md - Rating breakdown: 5★ 1,039 · 4★ 158 · 3★ 107 · 2★ 90 · 1★ 291 ## What do users think of D Minder Pro? Overall sentiment: positive **Pros** - 🚀 Useful for tracking vitamin D levels - 🌞 Helps with safe sun exposure - 👍 Accurate calculations - 🔋 Doesn't drain battery - 💡 Innovative concept **Cons** - 🐛 Crashes or bugs - 🔍 Difficult to use or navigate - 🔧 Lacks customization options - 📊 Inaccurate data or estimates - 💸 Paid version not worth the cost **Commonly 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 **Most 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 ## Newest reviews (14 of 671) ### 2/5 — Is Ok, but has lots of issues *2026-08-09, version 100.8.28* This app can help you get started and give you general ideas about tracking your vitamin D exposure, but it does come without a lot of issues. I often find that it will miscalculate the IU’s based on my time. I just verify the correct exposure total by a calculator. It often will adjust my end time and I have to go back in and edit it. It seems very glitchy ; for example, my IU exposure might be 89IU’s per minute. After 30 minutes, I should be somewhere around 2.6K. But the app will tell me I have 15IU’s of vitamin D. So in a nutshell, you’re gonna get a basic idea, but you’re definitely not not going to be tracking anything in depth. ### 4/5 — Black Screen *2026-08-01, version 100.8.23* This app used to be good but now all I get is a black screen when I open the app, on my iPhone 15 Pro with the latest iOS 26. It used to work on this phone. You used to get a brief glimpse of the correct app page, but since the latest update you don’t even get that anymore. This latest update has not fixed the problem. When is this going to be fixed properly. ### 3/5 — Loved the old version *2026-07-25, version 100.8.17* I appreciate this is a free app and helpful to track sun. The old version was simpler to use and the new one has SO many bugs. It constantly changes my session times to hardly anything, and it won’t let me edit the start time to fix it (changing just the ending affects the uv index sometimes). Past sessions mysteriously deleted. If no bugs and easy to edit, would be perfect! ### 3/5 — Used to be perfect *2026-07-25, version 100.8.17* Used to be a perfect app… then they decided to change everything. Now it’s cumbersome to use. Can’t easily do a sun session or add supplement doses like before. ### 3/5 — Help *2026-07-24, version 100.8.15* Couldn’t connect to any support. My active tracking is always saying zero (for about a week). Then I get an error when I end it and have to input manually as a previous session. I’ve loved this app and used it for years. Never had any issues. ### 3/5 — Dead app *2026-07-20, version 100.8.15* Loved this app but recent update makes my app go black. Now I can’t use it. No matter how many times I close out it won’t open without a black screen. Please fix this. I want to use the app and then I can change review to 5 stars cause I liked it a lot. ### 3/5 — Not as good as before *2026-07-20, version 100.8.15* This year they have done a lot of changes to the UI that make it generally less user-friendly and confusing. ### 4/5 — Glad to see I can finally open the Ap *2026-07-17, version 100.8.11* So far so good… Bit scared to do updates! I can’t see. Spot to add a good dose with the new update?? Lamp, supplement and sun yes… Ok- I found “food dose” .. it’s buried under history- not on front page like it used to be… also… when you type in a food - it’s all manual, there’s no search feature like in the old Ap- and even if I choose from common food list (eg egg YOLK).. I can only select one egg yolk.. hard to see how to make it multiple., except for manually guessing the IU dose, Also uv lamps/beds are illegal in Australia… probs best not to promote that option… ### 2/5 — Please revert back to previous version *2026-07-16, version 100.8.10* Please revert back to previous version- it was much more intuitive and reliable ### 2/5 — Ok *2026-07-13, version 100.8.10* But why won’t it update ? I’m permanently stuck on Imperial ### 1/5 — Black Screen *2026-07-09, version 100.8.8* 7-9-26 UPDATE: Still a BLACK SCREEN upon opening app. • I’ve done the updates, just updated iPhones IOS, each to no avail. • it might be helpful to say that *when I just put the app in the background and go back to the main phone screen, THEN go back to the background apps, I can SEE the Apps main page, as it should look, if it were to open properly. • I hope this will help, thank you for working so diligently to correct the issue. 6-27-26 Tried shutting down phone when I only got a black screen after the update. Sadly, that didn’t fix the issue. Please help/fix. ### 1/5 — What Happened!? *2026-07-08, version 100.8.8* Used to be the best app I have ever owned and now I haven’t been able to use this app for weeks. It gets stuck on a black screen and never loads. I’m on an iPhone 14 Pro Max and my OS is 17.7.2 ### 4/5 — Timely update *2026-07-08, version 100.8.7* Great to see the update! Many things look better and function faster and better. One feedback, the app icon in the Home Screen with the stark black background is unappealing. The sun is fine, can you change it to a white background or gives us an option to choose white? I think it also makes more sense this way and it’ll look more fresher and daylighty with an app dedicated to the sun. ### 1/5 — Don’t update! *2026-07-08, version 100.8.7* I updated the app and it no longer works anymore. It is just a black screen when I open the app. I’m so sad to lose access to this app that I’ve used every day for the last few years. ## Most critical reviews (10 lowest-rated) ### 1/5 — Great to barely ok *2026-08-11, version 100.8.28* Not sure why developers have a knack for ruining apps that actually work…but now they’ve done it to this one too. Update Sucks! ### 1/5 — Opens to a black screen *2026-08-01, version 100.8.23* This app used to work flawlessly and then many months ago just stopped working because when you open it all you see is a black screen. The latest update claims to fix this - it does not. How all of the recent updates got past QA is beyond me. ### 1/5 — Used to be 5 stars *2026-07-27, version 100.8.18* I loved the previous version of this app. It worked perfectly tracking my sun sessions and I would have rated it 5 stars. There are now so many bugs. Today it tracked 1 minute of my entire session. It also tells me after 7 minutes or so that my sun session is over when the old version used to say I had 20 minutes per side during the same time of day. It’s completely unusable at this point. ### 1/5 — still broken *2026-07-26, version 100.8.17* App still shows 0 IU for exposure after session if you have your phone screen locked. Please bring back the old version from years ago and call it dminder classic or something ### 1/5 — Help! When I open the app all I see is a black screen. *2026-07-24, version 100.8.15* I have had the app a long time and really miss using it. Where I live is problematic so I really need this app. Please help restore my functionality; I really enjoy this app! ### 1/5 — So many glitches *2026-07-23, version 100.8.15* Was wrapping up a session. Clicked finish session and it saved only 3 minutes of the 28 minutes I had recorded. Soooo many glitches still ### 1/5 — Black screen *2026-07-20, version 100.8.15* I’ve had this problem for weeks now ### 1/5 — Ridiculously complicated *2026-07-16, version 100.8.10* I gave up trying to set up app ### 1/5 — App broken *2026-07-11, version 100.8.10* App doesn’t even start after last updates ### 1/5 — Black blank screen *2026-07-10, version 100.8.8* Just opens to a black blank screen. It used to work and was a great app so not sure what’s going on ## Most praised reviews (10 highest-rated) ### 5/5 — Very Useful tool *2026-08-13, version 100.8.29* Keep track of your sun exposure and log your vitamin D production. It’s easy and useful. Seems accurate in that my blood test line up with what the app predicts. ### 5/5 — Sun Lover *2026-08-11, version 100.8.29* I’m a practitioner. I recommended to all my clients, super helpful to know how much you’re getting and when to get out of the sun! So you do not burn …Thank you for your app! ### 5/5 — I want to give 5 starts but *2026-07-29, version 100.8.19* I want to give 5 starts but I think the app is fine tuning its new update. It is EPIC. I loved this app before and now it is infinitely better. The free version is all you need - excellent app. ### 5/5 — Best ever app *2026-07-23, version 100.8.15* I’ve been using this for years for myself and my children. We are a healthy colour and have the vitamins we need for our eyes, skin, and mood, absorbed naturally, without getting burnt ### 5/5 — Excellent App *2026-07-21, version 100.8.15* So thankful black screen has been fixed & app is better than ever. For those with black screen I had to fully delete the App from my phone & reload to resolve. ### 5/5 — Back to being completely awesome!!! *2026-07-13, version 100.8.10* This app underwent some BIG changes over the last few months. It’s great again! Thanks so much for the work you guys are doing. This app has been incredibly helpful for me to get D naturally. I have a gene mutation that has made it impossible for me to supplement with pills to get vitamin D. I need to get D safely and this app is helping me to do that. 🙏🏼🩷 ### 5/5 — Black screen *2026-07-06, version 100.8.7* I have loved using this app, but lately when I open it I get a black screen and it never opens. ### 5/5 — Fixed – Black screen *2026-06-30, version 100.8.0* Deleted, then re-downloaded and it seems to be working, but I haven’t used it yet. Hopefully it will work properly when I use it this afternoon. ———- When I click the app to open it, nothing but a black screen happens and it stays that way. None of the updates have had any effect on that whatsoever. Please fix! I want to go back to giving this app a five star review. As it is, with the black screen, I have to say one. ### 5/5 — Excellent app! *2026-06-28, version 100.0.30* Ver 100.0.30 Ver 10.8.22 — Thank you so much for all the updates. The app runs smoothly now. I really love this app! The features to track D are very useful. I use the supplement and food log daily. I don’t go out much but when I do I use the sun session tool which is really cool with its cloud cover and skin exposure, etc features. I plan to use the lab results feature soon. Thank you for making such a comprehensive app. ### 5/5 — It’s Back! *2026-06-20, version 100.0.27* This app had been completely unusable for about a three month span. With the latest update it looks like they got it to work. I was able to fully track a sun session without any problems. I like the new interface as well. They have actually improved this app to make it significantly more helpful and overall better. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*