Reviews for Zero - Intermittent Fasting

Update 7/7/24: Uninstalled. Issue not resolved, and developer response is not helpful. You know the issue is widespread, I shouldn’t have to email you. When it works, it’s handy. Unfortunately, most of the time it won’t load, just keeps spinning and spinning. I have to wait until the next day to edit the start time, […]

Ok so I love this app and have been using it everyday for the the last 5+ months. Plus is TOO expensive and not worth it. I like the fasting zone feature. But that’s it. So many of us don’t use the education section at all. If I want the fasting zone feature, i would […]

The only other thing I wish this app did was let you keep a log as to why you cut your fast short or extended your fast longer than your normal fasting period. And also show the stages of your fasting (like what your body is doing in the time you are fasting.) The app […]

I like the app and tried the zero plus trial. I logged in food to help with my journey. Later I did subscribe to the Zero plus however, now when I wish to log food it opens a window and immediately closes it. This was one of the reasons I joined. Reaching someone to help […]

This was a great app ’til it got accidentally deleted off my Android phone. I downloaded it again & now it gives me no prompt to sign in. It only gives me prompts to create a new account. I don’t want to create a new account, as I have almost one year of daily fasts […]

The app keeps glitching horribly. Tons of little “ghost fasts” keep appearing, ie it logs a random fast that I never did (for a stupid amount of time – some of them are 1877h)! I can’t delete them and they break my fasting streak somehow. Oh, and for added frustration, when I try to delete […]

I find strange that ketones levels are recorded only once a day and without a time of day (or time of fast) attached to them. it makes sense for a day long fast, which is likely the least frequent type of fast. for hours long fasts it would be useful to test glucose and ketones […]

Used this app for aver a year and I enjoyed it. I was excited when they were launching the premium version up until I realized you had to take out a small loan to pay for this apps annual membership.. Why make the cost so high for a relatively straightforward application? IMO The app should […]

I love this app. I have been using it for over a year now and I think it’s the best one out there. The app has a reminder to let me know when it’s time to start fasting and it allows me to edit my fasting time. For example, if I started fasting at 9pm […]

I do wish you offered more things. i would like to see an option that connects to fitbit or some weight app, like my fitness pal. i dont record my weight on my email. i would like to see an option for measurements as well. maybe a place you can add a journal to see […]

Really enjoyed all the free perks of the app before they switched it, took everything away, and made people start paying for the things we got for free for years. Thanks for the response; however, I know what plus does as the app itself, before you started charging everyone, did the same things. At minimum […]

Have been using paid version. As of today, cannot use the app at all: “This version of Zero is no longer supported. Please update to the latest version to continue using the app.” I uninstalled/reinstalled, cleared cache – no change. It would be sad to lost quite a bit of data I’ve accumulated over the […]

I love that the timer can switch between time passed and time left, the completion wheel showing how far you’ve gone, and the % that you’ve completed is awesome. But, it won’t let me save a fast that’s past what it was set as :/ 13 hours + 45 minutes? no, no, no, better edit […]

Not really user friendly. When you finish a fast, it immediately starts a clock telling you how long it’s been since your last fast. How about giving me a second to celebrate? Instead, I have to search for evidence that I even completed a fast, and it’s just stupid lines on a calendar once you […]

I want to love this app. This app has everything I’ve ever wanted in a food diary app. But I’m having one major issue that I just cannot abide by. Logging food is abysmal! I can’t take a picture in the app because it never loads. I can’t type my description of the food too […]

Pretty buggy. It does what it needs to do, but for certain prompts, I have to click through 2-3 times for it to go through. Fitbit sync doesn’t really work, and the function to add activity isn’t working. There’s no way the premium version is worth $10 a month; think of the value that other […]

I like the interface, but there’s several things that seem to be broken in the Free version. For example, streaks & milestones are not being earned or incremented. Also, the week view for the Total Fasting Hours chart is not accurate. It has not shown anything since 10/28 and the hours that are displayed for […]

Loved this app at first, but features began to be frozen after a month. After starting a fast, I couldn’t adjust fast times and goals even after force stopping app and deleting cache. I can’t delete incorrect fasts after this, too. i checked for an update, but my app is most up to date so […]

I’ve been using this app for about 9months and have enjoyed it very much. However the last 3-4 weeks I haven’t been able to edit my fasting goal or delete inaccurate fasts. This is frustrating because it prevents my challenges from being met & having an accurate history. I purchased the annual subscription & feel […]

So far too many glitches. App does not sync up on multiple devices. Requires forced stop to get the second device to acknowledge the first. edit 9/22/25 please please stop changing things. I had a long period of time where things worked as they were supposed to in your most recent update. just really screwed […]