Prime: Intermittent Fasting

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Last verified 7 Aug 2026

4.6 4603 ratings · App Store

1. 1/5Paid for nothing

   I purchased the yearly subscription to my loss In March of 2025. Was never able to access anything on the app other than the what comes for free. I reached through the app as well as through email, they were of no help, just kept asking for the same thing over and over even though it was sent, which was proof of purchase, and I sent a copy of my Apple Pay as well as my Apple Store showing my subscription. I really enjoyed this app and it has been a great resource for fasting. It saddens me that once again companies are taken advantage of stealing for the little people!! I shouldn’t be that shocked!! I do want to warn others that before you invest in this app be warned that they do not honor your payments and/or purchases!! This app will help you along your journey and is great for that just don’t be fooled and spend money on a product you can’t use!!!

   bhfbfyvnm · 7 Aug 2026

2. 1/5You can find free apps better

   I was thinking this was something a little more or in-depth than the basic fasting. This expensive app did not give me anymore than I didn’t already know. It has a lot of flaws and missing information such as, I wanted to change the amount of weight I wanted to loose couldn’t do that. Wanted to see what the list of things I could drink on my fast, I couldn’t do that. I wanted to look at my original information I put it in that gave my projected date of completion and weight estimated to lose, couldn’t do that. The meals are a quick 30 or 40 seconds with no measurements or real instructions. Just overall not worth the cost. There was other stuff to but. Just google fasting or find a free app. Maybe this works for someone who knows nothing about fasting. All I wanted to lose was 10 lbs.

   Sdirv · 7 Aug 2026

3. 1/5Best water logging app ever!

   So this app basically allows you to log your water. You how to start your fast exactly at 8 PM and be able to enter it into the system at the start button exactly at 8 PM. Likewise you have to stop your fast and hit the stop button on the app exactly at 12 PM. If you were late then too bad. You have to default to entering it in manually. The problem is that the manual system does not work at all. So you can enter your first fast if you remember to enter it in exactly at 8 PM and endExactly at 12 PM the next day. Or whenever it is that you begin and stop your fast. I worked with the people on the app. You’re only able to contact them via text through the app. They got back with me within a few days. However they kept telling me to update the app through the play store. However I was a new customer so I went ahead and updated it even though I was a brand new customer. I updated it again. Then they told me to update it as I informed them that I was a new customer. Then they told me that they had updated it last week so update it again and it still didn’t work. Best water logging app ever. Worst 25 bucks ever spent.

   khat3969 · 7 Aug 2026

4. 5/5Prime Fasting

   This app is wonderful and so is Kate! I have been chatting with Kate with all my questions and her responses are prompt and have answered all my concerns. I’ve been using and following the app for 3 days and have lost 2 lbs already. I am Finding that if I follow what they advise, with no “bad” food restriction, I am full longer and am Not snacking on junk at all! I am doing 20 Minute workouts, drinking the recommended amount of water and trying to take The recommended number of steps and feel great. Plus when I eat my two meals, I don’t eat as much because I’m not as hungry as usual. I am also sleeping like a baby! All good things to say so far!

   SOK254 · 7 Aug 2026

5. 5/5Great app and helpful people

   I’m no newbie to IF, but the features of this app intrigued me. They initially ask you questions to recommend not only what fasting window you would benefit most from, but also provide meal plans! Although the recipes don’t change currently, Kate was very responsive with my recommendation to adding more to the meal plans. They also offer plenty of tips, additional recipes, and a community to ensure your success! I love this app and highly recommend it. The only other thing I would recommend is that the developers eventually all integration to MFP. Because I use both for my fitness journey and end up entering my water twice. MFP allows for more accurate tracking where this app only allows you to enter it in 8 oz intervals.

   KelFaut · 7 Aug 2026

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