What users complain about in fitness tracking apps.
Data reliability issues outweigh technical stability problems as the primary user frustration in fitness tracking apps.
10,340 reviews · 47 apps analyzed · as of June 18, 2026
Missing or difficult to find key app features
Mentioned in 26% of complaints across the 47 apps we analyzed in fitness tracking apps — 49 of 186 counted.
Every complaint, ranked by frequency
Each theme’s share of the counted complaints, with a representative review.
Missing or difficult to find key app features
“I’ve been using this app for many years now. This may be a minor thing to some but the fact that I can’t re-arrange my sets in an exercise is a big miss. I am constantly at the gym, putting in numbers, copying sets, because I can’t just drag a set and move it to a different…”
Workout data not syncing or saving properly
“I love this app., and am a paid user. I switched to this app. years ago because it does a great job at connecting to many different kinds of sensors. If for some reason you close the app . in the middle of a ride, before stopping and saving it, it will give you the opportunity…”
Recent updates caused regressions and usability issues
“I’ve been a strong user since ~2018. I like it, I really do. However there are *so* many bugs I run into *every single workout*. And it is infuriating to see that instead of fixing these bugs or improving the existing flow, y’all instead push an update to add …widgets!? The…”
App crashes, freezes, and becomes unresponsive
“This app freezes occasionally , does not save your workout try as you might, distorts data that it imports from other apps, is filled with unnecessary sub menus that make it un-user friendly (why would you need to go to a submenu to finish the workout when everything else is…”
Login failures and authentication errors
“The latest update booted me from being logged in and this seems like a recurring theme. That’s fine at the end of the day, but the issue is having to basically go through a setup process to get the app back to working order again. My watch was still connected and working fine,…”
Poor customer support and unresponsive developers
“A few weeks into using the app, my training load focus drastically changed and a lot of my data was missing or misrepresented on the charts and dashboards. I reached out to the developer but no real support was provided. Concept for the app is great and I want to continue to…”
Mandatory subscription paywalls block core features
“Loved the original app, opened the update to a screen trying to get me to subscribe. Tried restoring my subscription and it just sits at the subscription screen. Tried signing up for a new subscription and it moves on to the next sign up process but tells me the reason I want to…”
Frequently asked
What do users complain about most in fitness tracking apps?
The most common complaint is "Missing or difficult to find key app features" — 26% of analyzed complaints across 47 apps.
How many reviews did AppImp analyze for fitness tracking apps?
10,340 real App Store reviews across 47 apps — frequency-ranked and counted, never estimated.
What are the top complaints in fitness tracking apps?
1. Missing or difficult to find key app features (26%); 2. Workout data not syncing or saving properly (17%); 3. Recent updates caused regressions and usability issues (17%); 4. App crashes, freezes, and becomes unresponsive (16%); 5. Login failures and authentication errors (10%).
This is the what. The Deep Report is the why.
Root causes behind each complaint, which competitor has already solved it, and whether the gap in fitness tracking apps is still open — the part a model can’t reconstruct.
Every figure above is counted from real, public App Store reviews — never estimated, never LLM-invented. 10,340 reviews across 47 fitness tracking apps.