# Gymboss Interval Timer — user reviews > 269 indexed App Store user reviews of Gymboss Interval Timer by Gymboss LLC, rated 4.70/5 from 761 ratings. - Source: https://appshunter.io/ios/app/gymboss-interval-timer/id500887448/reviews - App overview in markdown: https://appshunter.io/ios/app/gymboss-interval-timer/id500887448.md - Rating breakdown: 5★ 643 · 4★ 53 · 3★ 17 · 2★ 15 · 1★ 33 ## What do users think of Gymboss Interval Timer? Overall sentiment: positive **Pros** - 🚀 Simple yet effective - 🚀 Perfect gym partner - 🚀 Grad App - 🚀 Great - 🚀 Simple easy to plan and workout - 🚀 Great for when you are either working from home or traveling - 🚀 Vital tool for fitness - 🚀 A must buy - 🚀 Timing - 🚀 Love GymBoss - 🚀 BEST APP EVER - 🚀 Coach T - 🚀 Best Interval Timer App - 🚀 Go to - 🚀 Works Great! **Cons** - 🐛 Clear data - 🐛 Glitchy - 🐛 Another buggy update - 🐛 Landscape / portrait bugs - 🐛 Sagging under bugs - 🐛 Recent changes mucked it up - 🐛 Update erased everything :( - 🐛 Sounds - 🐛 Update broke it - 🐛 Where has the beep gone?? - 🐛 Latest update has broken the ap - 🐛 AVOID - 🐛 Timer no longer beeps between intervals unless they're either a different colour, or at the end of a complete round - 🐛 When duplicating intervals, if you edit one of the intervals you've duplicated, it will make the same change to the all of the intervals that it was duplicated from - 🐛 Now when on your last interval, the timer will still display another interval below as if you still had another one to go - 🐛 The list of saved workouts has flipped so your most recent ones are now all the way down the bottom, with the oldest at the top - 🔋 Off screen display required - 🔋 Timer no longer beeps when screen is idle **Commonly reported bugs** - Timer no longer beeps when screen is locked or app is in background - Intervals disappear or get shuffled after updates - Unable to save new workouts - All workout sounds have gone - Crashes when trying to edit intervals - Reordering of saved workouts - Ads cover the timer screen - Timer stops working when screen is locked or app is in background **Most requested features** - Verbal prompts like a countdown "3-2-1 Go!" and "3-2-1 Rest" - Ability to lock the screen - Option to see what's coming next - Workout block of 60/30/30 rather than just high and low - Ability to start from partway through the sequence - Back and forward button to skip to the wanted element or go back during the sequence - Different alarm sounds for each interval/color - Countdown, CountUp feature - Dark mode option ## Newest reviews (18 of 269) ### 4/5 — Great! But *2026-07-31, version 4.0.10* This is a great timing app but I wish it stayed on the screen and didn’t turn off cause I had to keep checking the time. Still does its job👍 ### 4/5 — Can’t upgrade *2026-03-06, version 4.0.6* Can’t remove adds - stuck on loading forever when trying to buy premium ### 3/5 — Changes music when switching between apps *2026-02-04, version 4.0.5.3* Use it everyday and is really useful…..but has a really frustrating glitch. If I want to change my music. I have to force close the app by swiping upwards then change my music. If I don’t the moment I switch to the music app, it changes what I am listening to. It didn’t always used to do this, so wish it could be fixed. So down voting for now. ### 2/5 — Leave the Volume Alone! *2026-02-03, version 4.0.4* With this last update, it messes with my music volume, even when trying to control it through the app. It never used to affect the volume this badly. ### 4/5 — Slight Sound Changes *2026-02-03, version 4.0.4* The latest version lowers the volume on a music app, Spotify in my case. Would prefer if it left Spotify as is, prefer to listen to music while working through an exercise set. Also this made the app’s beeps relatively very loud ### 5/5 — Perfect gym partner *2025-11-13, version 4.0.3* This app is the perfect gym partner as it allows me to do my own HIIT and easily adapt it to suit my needs. ### 5/5 — Grad App *2025-10-08, version 4.0.3* The app is simple to use and gets the job done. ### 5/5 — Great *2025-10-07, version 4.0.3* This is my favorite timer. I’ve bought home timers similar to what they use at CrossFit boxes. I prefer this app because you can see the exercises with the timer instead of having to look at the board. ### 2/5 — Clear data *2025-08-26* I’ve been using this app for years to teach fitness classes. The last several months it’s been nothing but an irritation. When adding new classes, they sometimes fall to the end/bottom of my list and sometimes fall at the top. So they are no longer grouped together. I’ve deleted the app because it said it would clear all my data but, when I re-downloaded it all the data is still there. I have so many timers that it would take me all day to swipe to delete, then hit confirm. Is there any way to totally clear this out? I’d like to still use it, but it’s getting really frustrating. ### 5/5 — Simple easy to use *2025-07-27, version 4.0.3* Simple easy to plan and workout ### 5/5 — GymBoss Interval Timer *2025-07-14, version 4.0.3* Great for when you are either working from home or traveling. ### 2/5 — Glitchy *2025-06-28, version 4.0.3* Used to be the best app on the market but so glitchy now. It gets stuck in loops and doesnt progress through the workout! Its awful you think youre halfway and it goes back to the first exercise ### 5/5 — Vital tool for fitness *2025-06-08, version 4.0.3* I have had the physical gym boss interval timer for years and the app as well. Timed Interval training has shown repeatedly to be the best manner to maintain muscle and lower body fat. This device is crucial. ### 4/5 — Off screen display required *2025-05-30, version 4.0.3* I wish I could still scroll on my phone mid workout if required without losing my timer ### 3/5 — Buggy *2025-05-18, version 4.0.3* I’m trying to remove the ads but the screen fails to load just forever reads “loading” ### 3/5 — Landscape / portrait bugs *2025-05-13, version 4.0.3* With interval timer running: (1) When switching to landscape orientation on phone, picking up the phone from the top left corner of the device will likely be detected as tapping the X to close the timer. Welp, which interval was I on and how many left to go? Not sure, since I unintentionally exited the timer. (2) I was picking up the phone to switch back to portrait orientation to check how many intervals remaining - since the remainder count is not visible on landscape mode. (3) And when the interval timer has started with phone on landscape orientation, when switching to portrait orientation the banner ad doesn't resize, so it blocks the X to exit the timer. Summary: these should be easy-ish bugs to fix, coupled with a good QA test cycle before releasing the update. It does seem in the quest to monetize the app via larger ads, the app usability (which is why we downloaded the app in the first place) has suffered. Still giving 3 stars despite the annoying bugs. Have been an app user for years and each time I regret updating the app, because it gets worse. ### 5/5 — A must buy *2025-05-06, version 4.0.3* One of the best or worst pieces of gym kit. Guarantee pain or pleasure depending on your outlook ### 5/5 — Timing *2025-04-16, version 4.0.3* Excellence ## Most critical reviews (10 lowest-rated) ### 1/5 — worst app *2026-07-31, version 4.0.10* there is no directions on how to use this app. There is no demonstrations on how to use this app. In this app is very outdated. It is very old and has not been updated in years. I have quite a few apps on my phone and this is the only app that I have that I don’t know how to use. And the only reason why I don’t know how to use this is because of its poor design. ### 1/5 — Another buggy update *2025-06-23, version 4.0.3* I used to be able to listen to music or a podcast while using GymBoss but as soon as I open Gymboss, whatever I’m listening to: music, an audiobook, or a podcast, will stop. It’s extremely frustrating ### 1/5 — Sounds *2025-02-11, version 4.0.1* The update for sounds is not user friendly. Having to change the sound for each time is inconvenient and time consuming if you are doing multiple times in a spot . This needs to be fixed . ### 1/5 — Missing workouts *2025-02-11, version 4.0.1* I’m an instructor and use the app to teach so I need my past workouts. They keep randomly disappearing. I love that I can customize the exercises but if the workouts disappear labeling exercises useless. Please fix! ### 1/5 — Update broke it *2025-02-11, version 4.0.1* As others have said, there’s no sound anymore. Please fix this ### 1/5 — Latest update has broken the ap *2025-02-10, version 4.0.1* Updated to latest version and it deleted all of my preset interval timers and crashes when I try to recreate them. Avoid for now! ### 1/5 — AVOID *2025-02-08, version 4.0.1* Super buggy and one day suddenly deleted all my workouts!!!!! ### 1/5 — Latest Update *2025-02-04, version 4.0* What did you do in this latest update?!? I loved this app prior to the latest update. Now the programs don’t save the same and I can no longer receive auditory notices of interval changes. They won’t play with or without headphones ### 1/5 — New update functionally ruined this once fantastic app *2025-02-03, version 4.0* Timer no longer beeps between intervals unless they’re either a different colour, or at the end of a complete round. Why? This makes programming far more tedious as I now need to individually make sure every other interval has a different colour on it. When duplicating intervals, if you edit one of the intervals you’ve duplicated, it will make the same change to the all of the intervals that it was duplicated from. Why? If I wanted to make that change to all of them, I would have made the change first, then duplicated that. This change makes no practical sense. Now when on your last interval, the timer will still display another interval below as if you still had another one to go. Previously there would be no display of this, so you could see that when there was nothing there, you’re on your last interval. Why? Surely this one is just a bug. Straight up misleading. The list of saved workouts has flipped so your most recent ones are now all the way down the bottom, with the oldest at the top. This is completely backwards and originally led me to believe that all of my workouts were just gone. Why make this change? Messages, emails, phone calls, social media pages, everything you could think of has the most recent displayed at the top with older entries towards the bottom. If it ain’t broke, don’t fix it. This app was amazing before all of this. ### 1/5 — Latest update is a mess *2025-02-03, version 4.0* The app is bringing up old timers that I’ve deleted years ago and randomly reordering my newer timers among the deleted ones. Also, as others have pointed out, there is no sound. PLEASE RELEASE A FIX! ## Most praised reviews (10 highest-rated) ### 5/5 — Love GymBoss! *2026-08-18, version 4.0.10* I love that you can set up so many different kinds of timers and the app will save them all! ### 5/5 — TABATA WORKOUT TIMER *2026-07-23, version 4.0.10* This is a great tool! I have started the Tabata weight training and doing the timing on my phone was not effective. I had to set the timer a few seconds more to be able to do the 20 seconds work. This is a great tool! I will share this with friends! Many blessings, José retired Sergeant Major USMC ### 5/5 — Best Free app *2026-07-09, version 4.0.8* Love this timer , so easy and best of all free. It is consistent and relable ### 5/5 — Flexible *2026-06-15, version 4.0.6* Love the way you can customize your timer from color to time. I have been using this app for A long time. Always my go to for fitness timer. ### 5/5 — 💯 training partner *2026-05-19, version 4.0.6* Easy to set for intervals color-coded for a different rounds, clear starting and stopping points! I love it ### 5/5 — Amazing app *2026-04-19, version 4.0.6* Has all the functionality of your gymboss timer on your phone. ### 5/5 — Great app for intervals! *2026-03-24, version 4.0.6* I used to own a gym and now I personal online. I’ve done literally thousands of workouts using gym boss. I like it because it is easy to use but still has enough versatility to use on almost every workout. ### 5/5 — Best Free app *2026-03-12, version 4.0.6* Love this timer , so easy and best of all free ### 5/5 — Right on time *2026-01-26, version 4.0.3* This app lets you use already created intervals or create your own for an array of workouts. It makes keeping track of time easy and clear and beeps loudly at the beginning and end of each interval. Great App!! ### 5/5 — Simple yet effective *2025-11-24, version 4.0.3* I love this app. A very simple interface to create a workout including rest periods. I am able to take a workout I see on Instagram and create it for myself. --- *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 2026-08-27.*