# Fasten - Fasting Tracker App — user reviews > 34 indexed App Store user reviews of Fasten by Welzen LLC., rated 4.69/5 from 499 ratings. - Source: https://appshunter.io/ios/app/fasten-fasting-tracker-app/id1448781760/reviews - App overview in markdown: https://appshunter.io/ios/app/fasten-fasting-tracker-app/id1448781760.md - Rating breakdown: 5★ 412 · 4★ 47 · 3★ 16 · 2★ 7 · 1★ 13 ## What do users think of Fasten? Overall sentiment: mixed **Pros** - ⏱️ Effective countdown timer for fasting motivation - 👍 Clean, simple, and user-friendly interface - 🎯 Customizable fasting periods and adjustable times - 🧠 Ketosis tracking feature - 📊 Fasting statistics and history tracking - 💪 Motivational encouragement and goal tracking - 🤝 Responsive customer support team - 📝 Journal functionality during fasts **Cons** - 🚫 App access issues and crashes - 🐛 Data persistence problems (fasts not saving) - 💰 Aggressive paywall and premium upselling - 🔒 Limited free version functionality - ⏰ Unreliable internal clock/timer - 🔐 Inaccessible user support channels - 📉 No data export capability - ✏️ Limited editing capabilities mid-fast - 🔄 No recurring fast scheduling - 📱 Missing Apple Watch support **Commonly reported bugs** - App crashes and inability to access - Fasts not saving properly despite confirmation - Internal clock shows incorrect time (ahead of actual time) - Clock numbers disappear during time selection - Timer accuracy issues (behind by several minutes) - Elapsed time not updating correctly after editing start time - Cannot set start date more than 1 day in the past - Billing glitches with trial offers **Most requested features** - Daily recurring fast scheduling - Reminder notification to start fasts - Reminder notification before fast ends (10-15 minutes) - Water consumption tracking and reminders - Apple Watch app and widget support - Extended fasting periods beyond 48 hours - Longer history comparison view (beyond 5 days) - Data export functionality - Weight logging in free version - Mid-fast end time editing without canceling - Improved clock scrolling functionality ## Newest reviews (10 of 34) ### 3/5 — Disappointed *2019-11-11, version 2.4* I enjoy the functions provided however it’s missing two major components. First, fasts can only be set in hours and cannot be edited mid-fast. Start time can be changed, but not end time without ending the fast and having to plug in the new timeframe or just waiting it out to go “over” your time (which means no end fast notification). Do-able, but not convenient. More importantly, you cannot set recurring fasts. I generally follow a 23 hour fast protocol daily and therefore would need to set a new custom fast each day. 23hrs doesn’t always happen hence the need for easy editing. It’s a beautiful app but I feel like an app that only manages fasting should have these basic features for ease of use. ### 4/5 — Apple watch please *2019-10-17, version 2.4* So far ### 4/5 — I like *2019-07-03, version 2.3* The only thing I don’t like is I can’t log in my weight unless I upgrade to a paid subscription ### 3/5 — marvin starvin *2019-05-04, version 1.8* /d im so hangry, y do i do dis. ### 4/5 — Ketosis component *2019-02-21, version 1.3* I’ve been using the app for a short amount of time and I must say, so far so good. My only question is, how do the developers know when one will enter ketosis when there are so many factors that determine when an individual will enter ketosis? According to reports, one can enter ketosis in approximately 24 hours if they do a water fast ### 3/5 — It’s ok *2019-02-21, version 1.3* So far I think it’s just ok. It’s simple but I am noticing a lot of typos, which is surprisingly off putting. ### 3/5 — Longer fast periods *2019-02-20, version 1.2* I like this app except for the limited fasting periods. Can you allow for users to select periods longer than 48 hours? Also, the timer is incorrect. It’s behind a few minutes. I would attribute this to the edit feature. While I was able to edit the start time to minutes before I started teaching, the elapsed time didn’t catch up. ### 5/5 — Love this app *2019-02-15, version 1.2* This is such a great app for keeping me on track and give me encouragement!! I am doing the keto/IF plan. This app helps me get through my fast by letting me know I’m in ketosis and helping me keep track of my fasts. I love it!! ### 5/5 — Thankful! *2019-02-15, version 1.2* I been using Zero since I started IF which is 5 months ago (already lost 30 pounds) well zero wasn't bad but the app really really needs up upgrade! I'm thankful to find this upgraded version of fasting tracker!!! Thank you to who ever invented this app you guys are rockin👍🏼👏🏼😘! ### 5/5 — Great app! *2019-01-28, version 1.1* This application is really very good, it really helped me and helped me a lot. I am really surprised at the results you have given me. ## Most critical reviews (10 lowest-rated) ### 1/5 — Used to be cool, now can't even access *2023-02-13, version 3.1* I have attempted to contact the company, and Apple, I paid for a subscription, and I have not been able to access the app for months and months. I canceled it and will not renew obviously. Disappointed that I wasted money and time. I really did enjoy this app before I don’t know what happened. ### 1/5 — New update is a fail *2019-05-06, version 1.8* UPDATE May 6, 2019 Not usable anymore unless I start logging the fast precisely when I start it. I do not want this app running in the background. I want to be able to set the date and time I started, which might be earlier than 24 hrs previous to this moment. They are really pushing the year subscription, and if you do the trial, be aware you must cancel 24 hrs BEFORE the trial is up. April 3, 2019 I’m a newish user since Feb 1. I liked it, but this new update really went downhill. Now I can only go back 1 day to enter a fast I started previously. Before, we could go back as far as we wanted in time. Also, the hours of the clock don’t scroll properly anymore. The numbers just disappear, and you have to cancel and start over. Not pleased. ### 1/5 — clock is totally broken *2019-03-18, version 1.5* The internal clock in this app needs to recaliberate. Ex: Says I’ve completed my fast and that it’s 12:10 pm... except it’s only 11:45 and I still have 15 minutes left. Very frustrating. ### 1/5 — requires login *2019-03-04, version 1.4* guys, why do i have to log in and submit to tracking for what amounts to a UI over a stopwatch ### 2/5 — 👎 *2021-04-14, version 2.9* This is unreliable. I will end a fast and ask to save but when I return hours later it acts like I am still fasting. And constantly encourages me to pay for upgrade. Why would when I can't trust the free version to track my fasts. Looking for another alternative ### 2/5 — No data export! *2020-12-02, version 2.6* I have been using the app for over a year. It does a good job. Today I tried to figure out how to export my data, but there is no feature for this. Moreover, the user support site is completely blocked off so I can’t even contact the developer to inquire about this. I’m disappointed. ### 2/5 — Upgrade for weight chart?? *2019-03-28, version 1.6.1* Really? Another one deleted. ### 3/5 — Idea 💡 *2021-05-09, version 2.9* You send us a reminder to end the fast but you don’t send a reminder to start a fast 💨 that would be an excellent idea to be able to set a timer for every day to start a fast at the same time please ### 3/5 — Options *2021-01-11, version 2.7* I like the timer but it would be nice if more of the app were usable without fees. ### 3/5 — History comparisons *2019-11-16, version 2.4* Nice app. But I’d like to see my history comparison not just the pass 5 days and with just strolling down. ## Most praised reviews (10 highest-rated) ### 5/5 — Great app *2021-03-03, version 2.8* Let’s me see the countdown to my fast which is encouraging to me. Works for what I need it for. ### 5/5 — Great app *2020-05-06, version 2.4* Love this app great for IF beginners. ### 5/5 — Awesome app *2019-06-27, version 2.2* Since I got this app I have been so motivated to go longer with my fasting. Now I am logging 18 to 23 hrs on a regular basis . The timer is fantastic. When I click on start fasting . It feels that I made a commitment. I appreciate this app thanks 🙏🏼 I absolutely love this app . However I have not been able to open it since yesterday please help ### 5/5 — Feel Better *2019-05-29, version 2.0* Awesome app..!! Very good design, user friendly...definitely recommend..!! ### 5/5 — Great App and Great Customer Service *2019-04-02, version 1.6.1* I downloaded the app almost 2 weeks ago and last week decided to 2 not only is this a great app and helps me to keep on track but, I decided to try the 7 day free trial offer. Apparently, there was a glitch in the offer and I was billed by mistake. I emailed the support team and they were able to direct me on were to go for help. They were very kind and accommodating, highly recommend this app! ### 5/5 — Busy gram *2019-03-25, version 1.5* Love this app. It is clean, simple and just what I needed to keep me motivated. Much better than some other apps that I have tried. ### 5/5 — Beautiful, simple and completely customizable. *2019-03-25, version 1.5* I tried a couple apps- Zero, FastHabit- and Fasten is by far the best. The coolest thing about it is that if you forget to start your fast or enter your weight, you can adjust those times. And it even keeps track of what time you weighed yourself! Love it! ### 5/5 — Love that it shows when you've reached Ketosis *2019-03-14, version 1.5* Happy that this is a great fasting app and shows when your in ketosis zone keep improving love it ### 5/5 — ❤️❤️❤️ *2019-03-12, version 1.5* I love this app... especially when it says Congratulations you have accomplished your 18 hr goal 😊 ### 5/5 — They listened *2019-02-22, version 1.3* Originally this app only kept in military time, I emailed the IT department and asked if it could changed within 10 seconds someone answered and said it’ll be done in the update 6 days later the App changed to better suit my needs, It was so subtle I barely noticed 👍🏼 , thank u for listening --- *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 2026-06-10.*