Zero v3.0

Fasting made simple


We're the world's largest fasting community for iOS and Apple Watch. Version 3.0 is available now, completely redesigned to help you on your fasting journey.

11 Reviews
Julie Delanoy
Niraj Shah
Aashay Mody
 +14 reviews
  • Julie Delanoy
    Julie DelanoyDesign at Product Hunt

    Easy to use, nicely designed.


    None I can think of.

    I use it daily to track my fasts. At first, I didn't have the reflex to use it but after a few days, it became automatic. Now I'm excited to see my progress and it motivates me to keep going.

    Julie Delanoy has used this product for one month.
  • Pros: 

    Love this app.


    Nothing major. Keep forgetting to click the end fast so some days it goes longer than what my real fasting hours.

    Great app. It has helped me a lot with the fasting. v3 looks amazing. Do you think the apple watch might be able to detect the fasting state in the future?

    Niraj Shah has used this product for one month.
  • Brian Tudor
    Brian TudorUX Designer | Podcaster

    Beautiful upgrade with a ton of extra functionality


    Don't make me create an account right away. I really wanted to kick the tires on the new app before turning over my email address.

    Thanks for a Zero has been a great app from the start, the added features will be a great way to keep up with the fasting and learn some new things along the way.

    Brian Tudor has used this product for one year.
  • Stephen M. Walker II
    Stephen M. Walker IIHead of Product & Design @ Freeletics

    Great update to an already useful app


    Many new features– most are cool, but very much appreciate the simplicity of v2 and don't want more features

    Used off and on for the past two years, but finally committed to daily 16 hour fasts in December. This completely changed my day to day life (in addition to switching from coffee to tea and cutting most processed foods from diet).

    Stephen M. Walker II has used this product for one year.
  • Nolan McCoy
    Nolan McCoyFilm Producer, Storyteller, Husband

    FREE! Well thought through, and purposeful design. No other tool available at this caliber and "cost".



    Been using 2.0 for over a year and have absolutely loved it even before this update. While the previous build was simple and useful it was lacking in features​ but was also free so it was understandable. This update fills in any gaps I had before while still maintaining the insane FREE price tag. Thank you, Kevin Rose, for not capitalizing off the wellness of human beings with your suite of apps like Zero and Oak.

    Nolan McCoy has used this product for one year.
  • Pros: 

    UX is good.


    Don't see the use.

    I think it's completely unnecessary and superfluous app. We don't need an app for everything. If you're going to fast - just do it. It's as simple as that.

    Ketan Kotak has used this product for one day.
  • Tamal White
    Tamal WhiteData, Ruby, Apple.

    Good info, Apple Watch complication


    Requires account now

    I've used Zero for over a year and I loved it as a quick fasting tracker. It was simple and worked well. Now 3.0 has landed and I cannot use the app anymore without signing up for an account. I don't want an account, I don't want to be email spammed (it's in the privacy policy), I don't want to be part of a fasting community. Zero was great because it was simple. Now it's not. The developers state they added the account because people would lose their data. It's an iOS app, use CloudKit. I'd much rather pay a few bucks for Zero than have this new monetized version that is using my data for marketing.

    Tamal White has used this product for one year.
  • Pros: 

    I have been using this for a while and the new release looks awesome


    Little too early for any cons, but I didn't find any before so I doubt I will now

    Beautiful and functional app.

    Anthony Young has used this product for one year.
  • Pros: 

    So easy to use. It isn’t overloaded with too many distracting features. I love the ritual of starting my timer once my fast starts.


    Only thing I don’t like is not being able to adj my fast type from 16:8 to 20:4 while the timer is running.

    Love the new version!

    Molly Montgomery has used this product for one year.
  • Pros: 



    Too little functionality

    Way too basic compared to others out there like LifeOmic's LIFE

    Mandy Stanford has used this product for one month.
  • Pros: 

    Love the new fasting content and ability to track my stats



    Easy to use, very useful for tracking day to day, and a great resource for info. Perfect app to stay on track with my health goals!

    Heidi Vance has used this product for one year.