Some warnings 4 things we found but could not confirm. Nothing confirmed. Checked: 400 reviews and the Android app’s code.
From our automated analysis, 26 Oct 2026.
This analysis describes version 4.1.2 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 4.1.2, updated 2026-10-22.
Store screenshots supplied by the developer.
📌 Why install this periodic table?
Chemistry isn't boring tables and endless memorization — it's the language of the universe. If it ever felt that way, no one showed it to you right.
This app makes chemistry clear. Useful. Beautiful.
No lectures. No confusing terms. No ads.
Just the periodic table of chemical elements — with facts, visuals, and respect for your time.
🔬 Who is it for?
- School students — to understand chemistry, not just memorize it
- University students — to save time on every assignment
- Teachers — to keep every reference within reach
- Chemists and engineers — to replace outdated, clunky websites
- Anyone curious about how matter really works
🧪 What's inside:
- Interactive Periodic Table
All 118 chemical elements in the IUPAC long and short forms.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Specific evidence of a useful property, within the stated scope.
Offers a one-time or lifetime purchase: "Lifetime license for all features."
The app's own text offers a one-time or lifetime purchase, or reviewers report that the price is stated clearly.
Package artefact
Appworthy
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dOpen observations that have not cleared the evidence bar.
Use is rationed by a refillable meter: "Out of lives"
This observation has not cleared the required evidence standard.
Use is rationed by an energy/hearts/lives meter that runs out and forces a wait or a purchase.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "Subscription renews automatically. You can cancel anytime in Google Play."
This observation has not cleared the required evidence standard.
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "Never stop improving: a PRO subscription is one of the steps on the path to success."
This observation has not cleared the required evidence standard.
Advancement or competition is gated behind spending money rather than playing.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "Chemical dictionary unlock a large collection of the most important chemistry terms, just open the Dictionary section"
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.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "Account deleted"
This observation has not cleared the required evidence standard.
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "Guest"
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.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dThe app's own text says: "An internet connection is required for the initial setup and app verification. Please enable Wi-Fi or mobile data. The check will proceed automatically."
This observation has not cleared the required evidence standard.
The app's own copy describes working without a connection — offline mode, downloading for offline use, or content saved for later. Shown because readers filter on it; it is a feature, not a fairness property, and never counts for or against an app.
Package artefact
sha256:44a6c5600ee08f8044c34296157733ba388ab291592249aa483b6fc9969f662dNothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
No review-based observation is published in this assessment. That does not establish that reviewers had no problems.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
Android package 4.1.2, scanned 26 Oct 2026. These describe that package, not the current store version.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 4.1.2 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 4.1.2, updated 2026-10-22.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
No release notes were provided for this version.
periodic-table-2026Assessed 2026-10-26 from 400 user reviews and the app's package.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
This assessment is produced automatically. Four independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text and the app manifest — 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.