UPDF is an AI-powered PDF editor that streamlines working with PDFs on the go.
Superace Software Technology Co., Ltd.Some warnings 1 confirmed warning. Checked: 400 reviews, the Android app’s code, the store listing and the privacy label.
From our automated analysis, 24 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 2.2.11 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-24 .
The store currently lists version 2.2.11, updated 2026-02-06.
Store screenshots supplied by the developer.
UPDF is an AI-powered PDF editor that streamlines working with PDFs on the go. With UPDF, you can effortlessly view, edit, summarize, translate, explain, annotate, manage, print, and share PDFs, plus chat with AI. In addition to Android, UPDF is also compatible with iOS, Windows, and Mac. Use it on any device as needed.
Key Features:
Read PDF
- Open and view PDF files.
- View the properties of your PDF files.
- Add bookmarks to easily locate specific pages. This feature also supports renaming, reordering, and deleting the added bookmarks.
- Search within lengthy PDFs for specific words or sentences.
- Switch among four page display modes, including single-page view, two-page view, single-page scrolling, and two-page scrolling.
Edit PDFs
- Add/edit the text, and images in PDFs.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Findings that met the published evidence standard.
The store privacy disclosure (5 entries) names no tracking or advertising use, but the package ships 1 advertising/tracking SDK: Firebase Analytics
Tracking or advertising SDKs are present in the package that the store's own privacy disclosure does not account for.
Open observations that have not cleared the evidence bar.
Reviewers report clear pricing: raised by 9 distinct reviewers (about 1 in 44 reviews we read)
This observation has not cleared the required evidence standard.
The app's own text offers a one-time or lifetime purchase, or reviewers report that the price is stated clearly.
The app's own text says: "Get Limited FREE Features"
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.
Package artefact
Appworthy
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834bShips a purchase screen ("Already purchased?") with no dismiss, skip or "continue free" text anywhere in the package
This observation has not cleared the required evidence standard.
A paywall screen ships with no dismiss, skip or 'maybe later' affordance anywhere in the package, so the app's own text offers no way in without paying.
Package artefact
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834bSells a subscription in-app but ships no cancel or manage-subscription text of its own, leaving the store's settings as the only exit
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
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834bThe app's own text says: "The uploaded file size exceeds the limit, please upgrade Pro to continue using it."
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
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834bThe app's own text says: "Agree to the Privacy Policy to continue using UPDF"
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
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834bThe app's own text says: "Recently opened files will be listed here"
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
sha256:651329170f3d12d297a5a4f8e5e8fc36215361c424c62b59fcf65c53212e834b400 reviews read for this analysis. Each observation keeps the sample and store it was based on.
I have to say, UPDF is the most affordable PDF editor that ever existed (as long as they honor the Lifetime License and not becoming a douchebag like others software company revoking Lifetime License). First time hearing this app at LTT…
I find UPDF an alternative to Adobe. I have lifetime license for 4 devices and it was quick to install to all devices. The support team is prompt in their response. Happy with the performance of UPDF.
I chose UPDF Pro as is the closest option to Adobe, and with the lifetime option for the Pro version
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 2.2.11, scanned 24 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 2.2.11 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-24 .
The store currently lists version 2.2.11, updated 2026-02-06.
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.
updfAssessed 2026-10-24 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.