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This app is super annoying, even with the subscription. The “disable sleep” function does not work, so the app goes black on your phone AND watch unless you manually turn off your sleep mode every time you use it. (And even then, the watch still sleeps) And then the vibration does not work on the watch, so when I put my phone in a pocket and tried to rely on my watch, it not only kept going dark, but it also never notified me that I needed to switch to a run. Maybe it is set up to use the voice reminders through headphones, but I wasn’t using headphones because I was running with a partner, and we were chatting. If the app is created to disable sleep function and to vibrate when it’s time to switch, then those features should work on an iPhone X and an Apple Watch 5. When I decided to just carry the phone and watch the screen, every time my skin even barely touched the phone, it would fast forward or back up to a different location in the run, screwing everything up. Basically I wasted a week of trying to run, using this glitchy app. I’ll figure it out myself from now on. I still plan to run, but not using some clunky app that slows me down.

I’m just about to graduate week 8 of C25K, and I am debating whether or not I’ll continue to use ZenLabs’ app to continue working toward 10k. Unless you pay for ZenLabs Unlimited, the features are extremely basic, including no Apple Watch integration. The voiceover for the intervals is really the only perk here, but it is helpful and motivating to have your runs set up three days a week. My biggest complaint is that once you’re through the first half of the program, you begin running longer runs to use the stamina you’ve built, but the app assumes people are running a 10 minute mile. If people are truly couch potatoes, a 10 minute mile in only four weeks doesn’t seem realistic. Right now, I’m running the final 28 minute runs at a 13 minute pace, and so I’m going to need to keep training to reach 5k. Despite having a distance goal, this program uses all time-based intervals (ex: run 5 minutes, walk 3) rather than distance. The app is really rudimentary and if I could do it over again, I’d recommend everyone use another app.

I’m really disappointed that this app didn’t work out for me. This app crashed 2 of 3 workouts that I tried to use it. This app does not give you any distance, map or heart rate stats unless you pay for it. Which is fine but the app apparently doesn’t like it very much or there are some bugs. I ALWAYS have my apps and IOS software update and restart my phone just in case if I start having app issues. The first time I used it everything was going great but my Apple Watch detected I was doing a workout and I started the outdoor run, shortly afterwards my app crashed and lost my workout. Day 2 I used the default workout app on my Apple Watch and everything was fine no issues. Day 3 did the same steps as day 2 and the app crashed halfway through my workout. It’s extremely frustrating losing your progress so I downloaded a competitor and if it’s stable during my 7 day trail they will probably get my money. Sorry C25K you missed out on some $$. I at least gave you 2 stars because I did like the app layout and the screen lock feature for keeping the app in the foreground.