What users complain about in fitness studio booking apps
Technical instability and poor design are the top barriers, while authentication issues reveal a secondary trust problem.
7,224 reviews · 64 apps analyzed · Analysis as of June 18, 2026
App crashes, freezes, and fails to load
Mentioned in 27% of complaints across the 64 apps we analyzed in fitness studio booking apps.
Every complaint, ranked by frequency
01App crashes, freezes, and fails to load
27%Found in 47 reviews.
“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…”
02Poor user interface and navigation design
15%Found in 26 reviews.
“The service is great and well covered here but this app not only needs work but is a huge missed opportunity. It screams of a design team who isn’t listened to, or a team who is not listening to customers. There is no way that user research would yield the stuff I see every time…”
03Missing or removed app features
15%Found in 26 reviews.
“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…”
04Login and authentication issues
14%Found in 24 reviews.
“I log in to the app through one of the secondary log ins (Facebook, Google, etc). I have had issues with logging in as it struggles to do the multi-step authentication. Also, this app and Barre3 in general, are lacking the ability to give anonymous feedback. Barre3 locations are…”
05Data loss and sync failures
10%Found in 18 reviews.
“A few things that frustrated me… and then what I liked. I didn’t realize that the app needed to connect to my watch to “count” the workout. App failed to synch, so that workout was lost. I figured out how’s to put it in, but I know at least some of the data is lost. Now that I…”
06Poor or unresponsive customer support
9%Found in 16 reviews.
“I am giving this one star, but not because I don’t like the app but because I am unable to contact support. Every time I try their contact form says this must be spam. Even though all I did was ask a question and put in my name and email address. There’s no capture or anything…”
07Excessive paywalls and subscription issues
9%Found in 15 reviews.
“I like the app so far and paid for the yearly subscription, but I do have a question about the app. I am utilizing the app on my iPhone and the app is connected to my Apple ID. My family is also tied to that Apple ID, with that said, my wife would like to use the app as well to…”
Frequently asked
What do users complain about most in fitness studio booking apps?
The most common complaint is "App crashes, freezes, and fails to load" — 27% of analyzed complaints across 64 apps.
How many reviews did AppImp analyze for fitness studio booking apps?
7,224 real App Store reviews across 64 apps — frequency-ranked and counted, never estimated.
What are the top complaints in fitness studio booking apps?
1. App crashes, freezes, and fails to load (27%); 2. Poor user interface and navigation design (15%); 3. Missing or removed app features (15%); 4. Login and authentication issues (14%); 5. Data loss and sync failures (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 studio booking appsis still open — the part a model can’t reconstruct.
Run the full reportEvery figure above is counted from real, public App Store reviews — never estimated, never LLM-invented. 7,224 reviews across 64 fitness studio booking apps.