Some warnings 5 users report the basics being behind a paywall. Nothing confirmed. Checked: 108 reviews, the store listing and the privacy label.
From our automated analysis, 27 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 16.2.0 of the app, analyzed 2026-10-27 .
The store currently lists version 16.2.0, updated 2026-10-23.
Store screenshots supplied by the developer.
GoTall is the most accurate height predictor. Here's why it works:
1. We use real science.
GoTall uses data from the CDC, a group of top doctors and scientists who study how kids grow.
2. To guess your true potential, we ask about:
Your parents' and relatives' height (because your genes matter)
Your sleep, food, and activity (because habits affect growth)
Your stage of puberty (because timing matters)
We look at the full picture.
Instead of guessing from just your age, we look at everything together. That’s why our results are more accurate than just using a growth chart.
Stick to the growth plan, and we’ll keep guiding you every step of the way.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Facts that add context without being a charge.
In-app purchases run from USD 1.99 to USD 59.99 — a 30x spread across 10 items
The disclosed in-app purchases span an unusually wide price range. Published as context: the cheapest and priciest items may be different kinds of product entirely, so the spread alone deducts nothing.
Open observations that have not cleared the evidence bar.
Paywall blocks the basics: raised by 5 distinct reviewers (about 1 in 22 reviews we read)
This observation has not cleared the required evidence standard.
The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.
The store privacy disclosure (3 entries) links no contact details or identifiers to the user — consistent with an app that does not require an account. Self-reported by the developer.
This observation has not cleared the required evidence standard.
The app's own screens offer a way past sign-up — guest access, skipping, or browsing before registering — rather than gating the product behind an account. The store's privacy disclosure is checked alongside it: that disclosure is self-reported, so it corroborates this credit rather than establishing it.
Nothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
108 reviews read for this analysis. Each observation keeps the sample and store it was based on.
READ THIS BEFORE DOWNLOAD!!! — This app feels misleading. It makes you go through many personal questions, which gives the impression you will get useful results at the end. However, after spending time answering everything, the app does…
Info stuck behind paywall — I downloaded this app thinking it would just tell me the prediction, but it didn’t. After about 5 minutes of typing in information ecstatically, I was told I needed to pay a subscription fee. A free…
Why do you have to pay for everything?? — The idea of the app is good, but you have to pay to see literally EVERYTHING!!! This sucks
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 16.2.0 of the app, analyzed 2026-10-27 .
The store currently lists version 16.2.0, updated 2026-10-23.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Introducing the Halloween Sale! For a limited time, get a full year of GoTall at a special Halloween price. Hurry, the sale ends October 31.
Enjoy smoother Home animations and improved height-journey video sharing. We've improved growth check-ins, onboarding, and subscription access. Plus fixes for loading, layout, and app stability.
Appworthy
gotallAssessed 2026-10-27 from 108 user reviews, the store listing and its privacy label. We have not scanned the app's package, so nothing on this page was read from inside the app itself.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
This assessment is produced automatically. Three independent signals are read — user reviews, the store listing and the store privacy disclosure — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.