All-In-One Calculator combines a clean scientific calculator with 50+ calcula…
allinonecalculator.comSome warnings 8 users report an aggressive ad load; 1 thing we found but could not confirm. Nothing confirmed. Checked: 400 reviews, the Android app’s code, the store listing and the privacy label.
From our automated analysis, 26 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 3.4.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 3.4.0, updated 2026-08-11.
Store screenshots supplied by the developer.
All-In-One Calculator combines a clean scientific calculator with 50+ calculators and unit converters for everyday use. Get more from your calculator — for FREE!
🏆 Trusted by over 10 MILLION users worldwide!
Scientific calculator
• Trigonometry, logarithms, exponents
• Graphing calculator: plot functions
• Complex number support (√-1 → i)
• Fraction results (0.3333 → 1/3)
• Memory buttons: MC, M+, M-, MR
• Calculator history with notes
Currency converter
• 160+ currencies, live exchange rates
• Convert multiple currencies at once
• Works 100% offline
Unit converter
• Length, weight, volume, temperature
• Area, speed, pressure, power, energy
• Digital storage, cooking, shoe size
• Regional, historic & scientific units
• Combined units (ft + in, L + mL)…
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: "One time purchase"
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:cdbd6e7db2147edf25d0308416fc6c934275318ee867b8f9f309c0126d89cbccThe developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
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.
Open observations that have not cleared the evidence bar.
Aggressive ad load: raised by 8 distinct reviewers (about 1 in 50 reviews we read)
This observation has not cleared the required evidence standard.
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Offers a free trial ("Free Trial") with no renewal price, renewal date or auto-renew notice anywhere in the app's own text
This observation has not cleared the required evidence standard.
The app's own screens offer a free trial without stating, beside it, what happens when the trial ends. Read this as context rather than as a charge: renewal terms are normally shown on the store's purchase sheet instead, which we cannot see, and we can only observe one kind of evidence for this — so it is shown, but never counted as a charge.
Package artefact
sha256:cdbd6e7db2147edf25d0308416fc6c934275318ee867b8f9f309c0126d89cbccNothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
400 reviews read for this analysis. Each observation keeps the sample and store it was based on.
Subscription model to remove the ads on simple calculator app is ridiculous. When they introduced the full screen ads, I stopped using the app for its main purpose
Edit: intrusive full screen ads that are hard to exit out of are not appreciated when I just wanted to use a regular calculator for a few seconds. Old review: I appreciate the instantaneous conversions into multiple units. Super handy…
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.
Android package 3.4.0, 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 3.4.0 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 3.4.0, updated 2026-08-11.
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.
all-in-one-calculatorAssessed 2026-10-26 from 400 user reviews, the app's package, the store listing and its privacy label.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
This assessment is produced automatically. Six independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text, the app manifest, 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.