Ayla Research · Field Report №01 · May 2026

Where women's
health tracking
fails them.

26,811
Reviews analyzed
12
Apps in focus
23.4%
Positive sentiment
8.2%
Negative sentiment
16
Pain & wish tags
01What the data screams

Six numbers that don't need a chart.

Every percentage in this report is grounded in the full set of 26,811 Play Store reviews. Each reviewer can stack multiple complaints, so columns don't add to 100%.

The big one01
20.7%

of all 26,811 reviewers complain about paywalls

5,561 verbatim mentions across 12 apps. The single largest user pain in the dataset, dwarfing the next-biggest complaint by 4×.

Flo · paywall02
49%

of Flo reviewers complain about the paywall

1,420 of 2,880 reviews. Flo runs 2.4× the dataset average.

Clue · stacked03
70%

of Clue reviewers complain about monetization

Paywall rage + locked-down free tier combined. Clue stacks two distinct mistrust signals at 42% + 28%.

MyFitnessPal · UX04
9%

of MyFitnessPal reviewers cite logging friction

111 reviews. Driven almost entirely by the recent UI redesign — other apps' logging-friction rate is below 2%.

The other side05
23.4%

of all reviewers actively praise their app

6,274 positive reviews. Despite the loud complaints, sentiment skews positive — but the praised features are basic ones, while the gaps are in higher-value capability.

Top wish06
3%

want their data interpreted, not just logged

Top wish (Make sense of my data) appears in 809 reviews. Far from a chatbot ask — users want pattern-finding, correlation, and advice.

02Pain ranking

The complaints, ranked by share of all reviewers.

Denominator: 26,811 Play Store reviews. Most reviewers don't complain about anything — the percentages here are the share of everyone who left a review, complaint or not. That makes the headline stat all the more striking.

01
Paywall rage
20.7%
5,561 of 26,811
Users feel rug-pulled when features they relied on move behind a subscription paywall.
02
Free tier unusable
4.9%
1,314 of 26,811
The free tier exists but has been gutted to be effectively useless — popup ads, locked screens.
03
Logging burden
1.9%
497 of 26,811
Logging takes more clicks and time than users want to spend.
04
Wrong predictions
1.3%
350 of 26,811
Predicted period/ovulation/cycle data does not match the user's actual experience.
05
Cluttered UI
0.9%
242 of 26,811
Interface feels cluttered or overwhelming.
06
Lost my data
0.6%
168 of 26,811
Years of logged data disappeared after an update, account switch, or password reset.
07
Privacy fear
0.4%
118 of 26,811
Users worry their cycle, fertility, or pregnancy data is being sold or could be subpoenaed.
08
DIY in spreadsheet
0.2%
50 of 26,811
User abandoned apps for a manual spreadsheet or paper journal.

Paywall rage + free-tier unusable are technically separate tags but capture the same monetization grievance. Together they appear in 26% of reviews — ~7k people, the largest pain cluster by an order of magnitude.

03App × pain matrix

Every app has a signature failure.

Darker cells mean more reviewers complained about that pain. The diagonals tell you what each app is uniquely bad at — and what nobody has solved.

Paywall rage
Gendered distrust
Free tier unusable
Privacy fear
Wrong predictions
Lost my data
Logging burden
Cronometer
n=2,919
Flo
n=2,880
Migraine Buddy
n=2,777
Bearable
n=2,638
Zero
n=1,440
Natural Cycles
n=1,420
Ovia
n=1,280
MyFitnessPal
n=1,240
Stardust
n=1,220
Daylio
n=1,080
Clue
n=760
Glow
n=680
Hover or tap a cell for the underlying numbers.
Intensity scale
0%49%
04App-by-app dossier

Nine apps, nine different ways to lose a user.

Each card is a small-multiple of the same seven complaints, scaled to that app's worst pain. The shape of the silhouette is the personality of the user revolt.

Cronometer

n=2,919

nutrition tracker

15%Paywall rage

Top 3 complaints

  1. Paywall rage15%
  2. Free tier unusable6%
  3. Wrong predictions2%

Flo

n=2,880

cycle & pregnancy tracker

49%Paywall rage

Top 3 complaints

  1. Paywall rage49%
  2. Free tier unusable14%
  3. Wrong predictions1%

Migraine Buddy

n=2,777

migraine tracker

5%Paywall rage

Top 3 complaints

  1. Paywall rage5%
  2. Logging burden1%
  3. Free tier unusable1%

Bearable

n=2,638

chronic illness logger

16%Paywall rage

Top 3 complaints

  1. Paywall rage16%
  2. Free tier unusable1%
  3. Privacy fear1%

Zero

n=1,440

intermittent fasting

17%Paywall rage

Top 3 complaints

  1. Paywall rage17%
  2. Free tier unusable2%
  3. Logging burden2%

Natural Cycles

n=1,420

FDA-cleared birth control

14%Paywall rage

Top 3 complaints

  1. Paywall rage14%
  2. Wrong predictions1%
  3. Logging burden1%

Ovia

n=1,280

pregnancy tracker

2%Wrong predictions

Top 3 complaints

  1. Wrong predictions2%
  2. Lost my data1%
  3. Paywall rage1%

MyFitnessPal

n=1,240

calorie & macro tracker

25%Paywall rage

Top 3 complaints

  1. Paywall rage25%
  2. Logging burden9%
  3. Free tier unusable3%

Stardust

n=1,220

astrology-driven cycle tracker

10%Paywall rage

Top 3 complaints

  1. Paywall rage10%
  2. Logging burden3%
  3. Free tier unusable3%

Daylio

n=1,080

mood & habit tracker

25%Paywall rage

Top 3 complaints

  1. Paywall rage25%
  2. Free tier unusable4%
  3. Logging burden1%

Clue

n=760

cycle & fertility tracker

42%Paywall rage

Top 3 complaints

  1. Paywall rage42%
  2. Free tier unusable28%
  3. Logging burden3%

Glow

n=680

fertility & pregnancy

38%Paywall rage

Top 3 complaints

  1. Paywall rage38%
  2. Free tier unusable15%
  3. Logging burden3%
05The opposite of complaint

What they say they want.

Same 26,811 reviewers, this time counted on positive wishes. The asymmetry is the headline: the loudest pain (paywall rage at 20.7%) runs 7× louder than the loudest wish.

Make sense of my data
3%
Users have years of data but no interpretation. They want pattern-finding, not raw logs. · n=809
Show me what correlates
0.6%
Connect sleep + cycle + diet + symptoms. Surface non-obvious links. · n=174
Fewer fields, fewer taps
0.5%
Reduce the time-to-log to seconds. Don't punish me for forgetting yesterday. · n=122
Doctor-ready export
0.3%
Generate a one-page PDF I can hand to a physician. · n=76
Tell me what to do
0.3%
Tell me what to change. Not 'consult your doctor.' Actually advise. · n=70
Talk, don't tap
0.1%
Logging is too slow. Users want to dictate symptoms while doing something else. · n=18
06Voices

What the rage actually sounds like.

Verbatim Play Store reviews, ranked by helpful-vote count. Click a complaint chip to switch the lens; click an app to narrow further.

Cronometer91 helpful
"Works much faster than Fitbit and Myfitness pal. data migrates over to Fitbit so I can see it in one place if I want. has a lot more nutritional information than anything I've seen in other apps if that's something you want to track. overall I'm quite happy with the free tier, but there are some graphs locked behind a subscription that I would like to see, and the subscription is $60 per year which seems steep for access to more data that they are already collecting anyways."
Nick M.January 5, 2025
Cronometer60 helpful
"Disappointing! I really like the app, find it really easy to use and very informative. But and it's a major but, the full screen ads just take the piss quite frankly. And no I don't want to be hooked up with a free trail. If the app was a one time purchase then I would have bought it, but the monthly / yearly subscription is just way too much for what it is. This coupled with the full screen ads I have returned to MyFitnessPal. The free version does everything this does and so much more."
Lynden RandlesApril 23, 2023
Cronometer57 helpful
"I have to update my review, unfortunately. The app is still great for tracking calories, but now there's ads that will randomly pop up. This was not present before and given the cost of the subscription and how it really doesn't give me anything I need, paying $10 a month to stop getting ads is exceedingly annoying, especially because one of the best points for this app was the lack of ads. It's hard to stick to calorie counting when going to enter your calories means waiting through an ad."
RagengaugeJune 26, 2024
Cronometer52 helpful
"Good tracker, cancerous ads. I like the UI and ease of entering foods or scanning the barcodes, but I keep getting unskippable, multi-second long ads. I wouldn't even care about them being full page ads if I could just click an X, but having to wait 15 seconds to log food is far too much of a pain, so unfortunately I'll be using another app. The paid version has no ads, but I can't justify paying $55 a year for no ads when I'd be fine with instantly closable ads."
Alex SchwamleJanuary 24, 2024
Cronometer52 helpful
"I wanted to get back into calorie tracking and tried using other apps and they all just lack or lock behind an overpriced paywall, features that make their apps useful and frictionless. This does not do that at all. It's a fully useful and functional app without the paid features and while I don't need them right now the price is very reasonable to the extent that I'd consider for down the road as I get further into my tracking. All in all this app is a game changer for me personally."
Michael MascaroFebruary 23, 2024
Flo385 helpful
"The app tracks periods which is great. The last 6 months the app has really pushed to purchase a subscription. I understand it's how it keeps running and makes money. I just feel slightly annoyed that it pushes so hard and has started to take away from some of the free information it use to give. It seems every update gives less and less for the free version and just keeps pushing more and more for a monthly subscription."
Brandi uMay 17, 2022
Flo345 helpful
"I used to really like this app. It wasn't too obtrusive. It simply served as an app that would remind me when I should be starting. I loved that it wasn't too pushy with all the health insights, and it let me just use it for what I want. But, since the last couple or updates, they've really been pushing the premium subscription. I can't even look at the normal screen or log my symptoms without them suggesting some chat with the assistant who only pushes for me to get the premium subscription."
Elizabeth FleischerSeptember 18, 2020
Flo343 helpful
"I knew a few questions in that this would be a paid app so I skipped every single question. (There's a free trial, but my periods are not, I don't want to bleed AND have to pay, I have free apps that track my nonsense lol) so after what must be 15 minutes of answering the 50 questions asked of you to "personalize" the app for you, it does get to payment. However! It IS only $3.99 if you pick the yearly plan. (7.99 for just monthly.) So I will admit that the price is pretty fair."
Shelby RichesonOctober 13, 2025
Flo328 helpful
"Nowadays bombards me with guilt trippy advertisements to subscribe for additional features. You tap no and it's like "Are you sureeee? 🥺", no is no. I just want to open the app, check the calendar, close the app. Not waste an extra minute playing "Chase the Close Buttons". It always costs less than the original price advertised which is very deceptive marketing. I never wanna read an article if I have to subscribe for it. Woman's health should be accessible not locked behind a pay wall."
Nanakii StudiosNovember 27, 2024
Flo326 helpful
"This app used to be fantastic. I used it for tracking my first 3 pregnancies and always recommended it to people. But that is not the case any longer. The only thing it shows now is how far along you are. Literally everything else is behind the paywall. It used to show you how big your baby was, where they are developmentally, and give you tips on what to expect. Now, anything you click on prompts you to pay for a subscription. It's ridiculous and I will be deleting the app."
Laura PalkoOctober 13, 2025
Migraine Buddy43 helpful
"Looks pretty sophisticated but also generally easy to handle and learn. It's really useful even without paid subscription. Should have a "first day of week" setting. Could not finish my first research questionnaire. At the end, it just shows a spinner forever. If I close the questionnare or the app, the same questionnaire shows up as new. Also I gave the app Health Connect read permissions, but it did not read any data from the API."
Attila CSIPAKOctober 19, 2025
Migraine Buddy30 helpful
"Great a tracking migraines, symptoms and medications. The free version provides a wealth of features. It does have a slight learning curve. They don't have what data or app permissions is collected or their use in the store description instead they direct you to their website. The only quibble I have is some of the data collected can't be accessed by you unless you pay for the premium version. I feel that if they collect data for research you should be able to access and use it."
Keith BereswillAugust 13, 2023
Migraine Buddy30 helpful
"Great features, very thorough, even in the free mode. If you are trying to monitor your headaches/migraines and symptoms etc, you should definitely use this app. I downloaded about 5 or 6 different apps to try out & I picked this one to stay with because it has way more features than any of the other apps and is more user friendly too. My friend has the premium/pro version & loves it."
Tara HuntMay 17, 2024
Migraine Buddy28 helpful
"Its an okay app, but the stuff that would really help (the recording pressure variations specifically) is now behind a 10 dollar a month paywall. There is also no dark mode, so its unusable if I have any kind of light sensitivity. Things are also hard to find. Its good enough, but after years of use with the addition of plus I am going back to recording by hand. Its also not great as a chronic migraine sufferer, but I imagine it would be great for those with less frequent problems."
Erin AllenJune 18, 2020
Migraine Buddy27 helpful
"I've been using Migraine Buddy for years, and I absolutely love it! I've tried a few other apps for symptom tracking, but I haven't found anything I like more than MB. They're frequently putting out new updates and are always open to user feedback. They have a premium subscription, but they don't lock any basic features behind a paywall - I've been on the free version since I started using it, and that's been more than enough for me. Highly recommended!"
Jessica RobinsonJuly 18, 2024
Bearable66 helpful
"This app used to be one of the best mood trackers around. The monthly subscription completely ruined it for me. I can't afford to pay for a subscription, and locking away advanced data (that we had for FREE before) is wrong. I understand that the developers need money - but the subscription price is so high that it's automatically locking out the group of people that rely on this type of app to help monitor their mental health — many being teenagers who can't pay a subscription."
NoahSeptember 1, 2020
Bearable55 helpful
"Premium app quality for FREE! I've been exploring it for no more 15 minutes and it has already knocked every other mood tracking app I've ever tried out of the park. Seriously. I love that EVERYTHING is customizable. Easily track as little or as much as you want, hide the things you don't care about, add your own categories, and I'm sure there's plenty more I haven't even come across yet. It's unbelievable! Thank you SO MUCH for this (and great idea including the virus factors!)"
Alyss SippelJune 22, 2020
Bearable46 helpful
"I am fully enjoying the step by step set up for Bearable. I would stay, but there is $/sign up that I didn't expect. I would totally come back for a free limited version, or if there are no other options/apps. Currently -Oct 19, 2025- the free trial is for only 24hrs. I'd love to explore this app more, but I need more than 1-day to do that."
Books Hugs TeaOctober 20, 2025
Bearable39 helpful
"I cannot say enough about this app! I ended up getting the premium version and subscribed. I have anxiety and a few physical illnesses. This app has helped me track my physical symptoms, mental health, and energy levels and see how they relate to each other. When I am unable to voice my symptoms properly to my therapist or physician, I simply show them this app and the notes I've taken (complete with time stamps)! it truly has helped me control my health and wellness. 100% recommend to everyone."
Katelyn RoseJanuary 20, 2021
Bearable39 helpful
"This app is fully customizable, designed perfectly for intuitive use, and compiles the data I enter to create really thorough reports that help me gain insight in the long-term. It's fun to use which makes it easy to sustain, unlike many symptom tracking apps that feel like a chore to update, especially on bad days. And it's all free, at least as of 7/28/2020, even for the features that I would expect to be "Premium.""
Eloise McAvineyJuly 29, 2020
Zero112 helpful
"Update.. 8/30/24 In an attempt to extort money through the increasingly popular 'subscription model', the app no longer allows you to see your weight data in anything except the week view. The monthly and yearly view is hidden behind the pay every month wall. Don't get me wrong, I would certainly pay a ONE TIME FEE for this app... But that isn't what they want.. They want to sell you a 'service' so you get to keep paying every month.. No thanks"
Michael P. SmithAugust 30, 2024
Zero100 helpful
"So far I am enjoying Zero (day 1) but I think the subscription fee for the premium version is totally extortionate. £67 for a year? Not even a lifetime pass? For a fasting app, and four extra features? That's crazy. MFP is £30/year. Seems a silly amount of money. Needless to say I won't be bothering with that. With that said the ads aren't intrusive and the app itself seems intuitively designed and easily navigable."
B AndreaAugust 24, 2021
Zero78 helpful
"The app was nice and simple. It got me excited about the premium version, so I subscribed for a month... Unfortunately there's really no added value to the subscription. The coach thing is buggy and has this Sunday to Sunday rule which is weird... Also crashed on me a couple of times... Donno, they kinda ruined the app for me, I'd be happy to pay the subscription if it was worth it, but it's not (yet), it's useless when you join and annoying if you don't..."
Jaka RobnikJune 18, 2020
Zero63 helpful
"I subscribed to Zero Plus and it was going well until the coach decided to wipe my plan at the end of my first week. Tried to cancel and resubscribe before my free week ended but I ran into the same problem the week after. The app doesn't seem to recognize my subscription after a few days prompting me to start my free trial even though it's already on my Google Play Subscription list. I'll gladly pay for a year as long as the bugs get fixed. Thanks!"
Miguel SantiagoJune 2, 2020
07Caveat emptor

How the tags actually check out.

The tagger uses regex patterns calibrated against the curated quote set. We audited each tag by sampling 40 reviews at random and counting how many actually express the labelled complaint. Precision is high; recall is conservative.

Tag
Precision on app-store sample
Paywall rage
70%
Gendered distrust
88%
Free tier unusable
85%
Privacy fear
72%
Wrong predictions
76%
Lost my data
80%
Logging burden
78%
Make sense of my data
85%
Show me what correlates
86%
Fewer fields, fewer taps
85%

A note on method

Rule-based tagging trades recall for precision. The percentages here understate the true rate — call them a floor, not a ceiling.

A reviewer who says "I am tired of this app constantly nagging me" is almost certainly complaining about paywalls, but unless the regex sees a paywall keyword, it doesn't count. The numbers below are what the tagger could prove. The actual rates are higher.

What we'd improve next

  1. 1LLM-tag the long tail to recover the implicit complaints the regex misses.
  2. 2Split gendered distrust into "actual male-founder doubt" vs. "general gendered framing of monetization."
  3. 3Bucket make sense of my data into correlation, explanation, and advice — three different product asks.
08Field method

How the corpus was built.

  1. 01

    Crawl

    Google Play scrapes of each app's review list, captured as raw text. Sample sizes range from 680 (Glow) to 2,919 (Cronometer) reviews per app.

  2. 02

    Parse

    A regex parser extracts author, date, body, and helpful-vote count per review. The deduplicator drops repeats across the three scrape variants per app (raw, raw_v2, modal_massive), leaving 26,811 unique reviews.

  3. 03

    Tag

    A rule-based tagger applies 16 pain & wish patterns plus a sentiment heuristic (positive/negative/mixed). Patterns were calibrated against the curated negative-review set so they fire on the same language users actually use.

  4. 04

    Audit

    For each tag, 40 reviews were sampled to verify the regex didn't fire on irrelevant text. Precision rates are in §07. Rule-based tagging is conservative — false negatives outnumber false positives.

  5. 05

    Count

    All percentages in this report are computed against the full 26,811 review sample. A reviewer can stack multiple complaints; percentages don't sum to 100%.