# B12 Deficiency — user reviews > 17 indexed App Store user reviews of B12 Deficiency by B12 Info Limited, rated 3.10/5 from 10 ratings. - Source: https://appshunter.io/ios/app/b12-deficiency/id859078895/reviews - App overview in markdown: https://appshunter.io/ios/app/b12-deficiency/id859078895.md - Rating breakdown: 5★ 4 · 4★ 1 · 3★ 1 · 2★ 0 · 1★ 4 ## Most critical reviews (10 lowest-rated) ### 1/5 — Journal won’t work *2022-12-13* I had the original app for free Called PA, the journal would no longer open so I thought it may be because this £4.49 app had superseded it. Downloaded hoping to swap across but the journal doesn’t work in this app either tap the + button and it closes the app used to love recording in this app good reminder of historic events but now won’t work properly ### 1/5 — Please update! *2022-05-03* The journal feature keeps crashing the app. I can’t type in the personalized symptoms because of the placement of the text box (iPhone). Also-just a thought-it would be cool to add the labs to the charts feature. ### 1/5 — V1.3.2 broken *2022-03-24* I’ve just updated to version 1.3.2 on my iPad running iOS 15.3.1 and now My Journal is broken. If you try to add an entry or update an existing one the app crashes I have 2 months worth of data in the app which I cannot access it makes you wonder how much testing the app gets, especially when this version is supposed to fix issues in iOS 15. For me it “was” fine. Now, In its current state, this app is close to useless. ### 1/5 — B12 app *2019-03-07* For 4.99 this is a total rip off. It’s just a glorified Excel sheet with colours! ### 1/5 — Just crashes. Waste of money *2018-06-18* Can’t use the app as it crashes as soon as you start to use it! ### 1/5 — Crash Award *2018-04-16* I JUST purchased this app after leaving my doc's office with a rec to begin supplementation. Just during the initial stage of entering my symptoms, the app crashed no fewer than 30 times, causing me to have to go back and re-add symptoms I'd already entered. Fail. How do I get a refund??? ### 1/5 — App won't let me register *2016-09-08, version 1.01* Downloaded app and it crashes at my attempts to register. ### 1/5 — Can't log in *2015-10-19, version 1.01* Downloaded app but crashes every time I try to make an account. ### 2/5 — Can’t edit past symptoms *2018-12-12* Could be useful except that I can’t edit past days unless I’m missing something. When I first got the app I didn’t know how to use it and selected all of my symptoms I’ve ever had rather than knowing it was for that one day. Now I can’t go back and edit it and my charts are off. ### 3/5 — Doesn’t have the feature I wanted *2021-05-07* B12 intramuscular injections are often prescribed with staggered, irregular schedules that this app didn’t accommodate to. Example: every other day for 2 weeks then once a week for 3 more weeks, then once every 6 months... this app only had an option to add supplements with regular schedules (every day, every other day, etc). While there could be a workaround by setting up multiple time periods, that seems too time-consuming... In the future it would also be cool if it could integrate with Apple health... ## Most praised reviews (7 highest-rated) ### 5/5 — Great help *2015-01-14* I have been using this app for a while and find it very helpful. The charts and the reminders are great but for me the image section is brilliant. To be able to keep all my info in one spot is invaluable. ### 5/5 — Awesome app. *2015-01-14* This app is really helping me to manage my symptoms and I would highly recommend it. The alerts are excellent!!! ### 5/5 — Brilliant App *2014-09-13, version 1.0* An intuitive and well thought out app , a nice graphical interface with easy to understand instructions a diary for your meds is very clever and usefull well done to the dev's ### 4/5 — Excellent idea. *2018-12-20* When I first got the App, I wasn’t too impressed, there was some bugs and glitches. Now though, after I’ve updated it it’s brilliant. Lots of useful features. You can type in your symptoms, there’s a journal if you want to do a daily diary. You can type in all your meds and supplements and in the calendar it reminds you to take them...A few other things like inputting test results etccc. Very handy App. ### 4/5 — Good idea *2015-04-05* Easy to use and helpful ### 4/5 — Works good but kind of lacking *2014-09-21* Wish it had some " tips and tricks" maybe also some supporting evidence to bring to doctor. ### 3/5 — Disappointed :( *2018-04-27* It’s becoming quite a chore to enter my symptom scores each evening due to it crashing repeatedly. Shame you can’t remove medications once you’ve listed them, would be good to be able to fully edit and remove. The chart is a great idea and works well for the symptoms but I can’t see the medication/supplements anywhere except on the key. Needs to be visually clear when I’ve had a B12 injection for the symptoms chart to be comprehensive. If I knew then what I do now, I don’t think I’d have paid £2.99 for it. Hopefully some improvements will be made. --- *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 2026-08-24.*