Missing features or limited functionality.
Across 24,869 reviews of the 94 biggest health & fitness apps: Stability and authentication issues far outweigh design concerns in health app frustration.
24,869 reviews · 94 apps · 257 complaints · as of August 30, 2026
“This whole app screams vibe coded slop and misses basic features - add ability to write iOS Health App. basic feature here, not sure how this wasn’t shipped day 1 - buggy friends leaderboards for steps, doesn’t even…”
The apps behind these complaints.
What the store shows beside what their reviews count to.
Star ratings are Apple’s lifetime averages across every rating ever left. Negative shares are counted from the reviews in our corpus. Windows vary per app.
Every complaint, ranked.
Shares of 257 counted complaints, from 250 reviews. A review can carry more than one theme. Each row carries a representative review. Tap one for the rest.
“This whole app screams vibe coded slop and misses basic features - add ability to write iOS Health App. basic feature here, not sure how this wasn’t shipped day 1 - buggy friends leaderboards for steps, doesn’t even show always. Can only view weekly stats amongst friends. No option to create group or add challenges etc etc - no way to edit order of tiles unless you select them in specific order. …”Google Health (Fitbit)
“I encounter at least 12 separate bugs in your apps core functionality every time I use it (4 times a week). I have the latest iOS on both watch and a brand new iPhone 17 pro max. I am not going to enumerate these bugs because you either already know them/ have been ignoring them for literally years or you really don’t deserve to know them because your company deserves to end permanently. Your comp…”Fitbod: Gym & Fitness Planner
“I’m disappointed with my experience using this app. It has been glitchy, and most recently it was down for an entire day, which resulted in my data not syncing properly from the device promoted by Personify. I also spent nearly a week troubleshooting the issue with customer support. While I appreciate the attempt to help, the process was repetitive and inefficient. I was asked to reset my device …”Personify Health
“You're continuing to respond with copy/pasted generic responses that include me reinstalling the app, and other things I've said I've already done. I don't think you're even reading my messages. Not using VPN. Yes, I know how to sync the app with the sync button. Yes I've already reinstalled it. You can stop copy pasting that generic response of that procedure. Where exactly in the appt do I vie…”MyFitnessPal: Calorie Counter
“This app is not ready for prime time or something. I wanted to use it. I saw the bad reviews thinking, it must be better now, people have told them the issues. When I tried to register, I got as far as completing my full name (first step), then I got kicked out when putting in my DOB. I tried again, same result. So I clicked supprt in the app. I wrote a complete explanation of the issue, then the …”MyActiveHealth Wellness
“There are times when you can look at an app and say, “It’s pretty obvious that no user experience designers or user experience researchers worked on this product.” This is one of those times. The only reason I continue to use this app is because my trainer uses it. This app is clunky, full of weird and unintuitive interactions. The app on the phone and the app on the watch barely communicate with …”Fitness App (ABC Trainerize)
“I bought a lifetime membership thinking this could be my new calorie counting app due to the cute otter and the other wellness features. I quickly learned that the calorie counting is not user friendly. I am using another app for calorie counting right now. I would love to see this feature expand, or allow importing from other calorie counting apps. When I tap on my otter she says certain thing…”OtterLife: AI Health Tracker
This is the what. The Deep Report is the why.
Sample below is from the live budgeting apps Deep Report. Yours is generated to order for health & fitness apps.
The #1 counted gap
Sync & data runs 5.8% of this market’s negatives vs 2.2% typical, present in 9 of 14 apps.
+ 10 more gaps, ranked, inside.
Rival by rival
Owns: Largest reach; bill-negotiation hook
Exposed: Billing fraud perception ('billing every three weeks'); inaccurate sync; no Zelle/CashApp
Owns:
Exposed:
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7 rivals read this way inside: owned ground and exposed flank, each.
Root causes behind each complaint, which competitor has already solved it, and whether the gap in health & fitness apps is still open, the part a model can’t reconstruct.
Frequently asked
What do users complain about most in health & fitness apps?
The most common complaint is "Missing features or limited functionality", 23% of analyzed complaints across 94 apps.
How many reviews did App Imp analyze for health & fitness apps?
24,869 real App Store reviews across 94 apps. Frequency-ranked and counted, never estimated.
What are the top complaints in health & fitness apps?
1. Missing features or limited functionality (23%); 2. App crashes, freezes, and won't load (21%); 3. Data syncing, loss, or display errors (13%); 4. Contact support and bug reporting unavailable (12%); 5. Login failures and authentication errors (12%).
Other counted categories
Every figure above is counted from real, public App Store reviews, never estimated, never LLM-invented. 24,869 reviews across 94 health & fitness apps.