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Independent automated assessment · 3 signal sources · 504 reviews scanned · analyzed 2026-10-04.

pdfFiller: edit PDF documents

airSlate, Inc.

Scan, fill, sign,make pdf docs

4.5 ★8,951 ratings
—Downloads
4+Age rating
187 MBApp size
FreeIn-app purchases

About this app

pdfFiller is a powerful mobile app that transforms your iOS device into a fully equipped office. With an extensive set of features, you can edit, eSign, and manage an unlimited number of PDF documents from anywhere. Try pdfFiller to see how it can revolutionize the way you work.

“pdfFiller does more than just bring a few new editing tricks to PDFs. Actually, this PDF app can add extra depth to the way we interact with these popular files.” — CultOfMac.com

“The app is easy to use, lets you organize files into folders, and connects to Dropbox, Google Drive, Box, and OneDrive.” — MakeUseOf.com

EDIT PDF DOCUMENTS • Easily edit any PDF contract, invoice, or tax form on your mobile device • Highlight content, erase, or blackout sensitive information in the documents • Use various annotation tools to add text, images, dates, check marks, and more…

Preview

Real screenshots from the store listing.

8 screenshots
pdfFiller: edit PDF documents screenshot 1
pdfFiller: edit PDF documents screenshot 2
pdfFiller: edit PDF documents screenshot 3
pdfFiller: edit PDF documents screenshot 4
pdfFiller: edit PDF documents screenshot 5
pdfFiller: edit PDF documents screenshot 6
pdfFiller: edit PDF documents screenshot 7
pdfFiller: edit PDF documents screenshot 8

Independent evidence report

Evidence and review signals

This is where the page changes from an app-store listing into an evidence report: findings, important reviews, pricing and a dated history.

Automated analysis in progress

Which version this describes

When we ran this analysis, and what the store lists now.

This analysis describes version 6.36.1 of the app, analyzed 2026-10-04 . The app may have changed since.

The store currently lists version 6.36.1, updated 2026-03-18.

What we measured

Each line is a measurement published as a measurement, never a verdict.

How these are measured

Each line is a measurement, published as a measurement. Where we have not looked, the line says so rather than reading as a zero.

Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
States no price and billing period
Cancelling, in the store description
Says how to cancel
Themes reported by reviewers
3 or more themes reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence about the app, not a finding about it.

Graded bands · predicate set 1.4 · how these are measured

What the analysis found

App-specific findings, grouped by what each one rests on. How they are graded lives on its own page.

Methodology

One source only — shown, not confirmed 5

A single kind of evidence. We publish these because withholding them would be the bigger distortion, and we do not treat any of them as a finding we stand behind.

Reported by users: Reports that the ads misrepresent the app
One source onlyShown, not confirmed — the only source is user reviews.view evidence
Reviewers repeatedly report that the app is not what its advertising showed. We never see the ad creative itself, so nothing we collect can corroborate or refute this — it is published as an attributed user report: what reviewers say, and how many of them said it.
What we saw: Misleading advertising: raised by 11 distinct reviewers (2.2% of 504 reviews scanned)
Reported by users: Hard to cancel
One source onlyShown, not confirmed — the only source is user reviews.view evidence
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
What we saw: Hard to cancel: raised by 13 distinct reviewers (2.6% of 504 reviews scanned)
Reported by users: Paywall blocks the basics
One source onlyShown, not confirmed — the only source is user reviews.view evidence
The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.
What we saw: Paywall blocks the basics: raised by 6 distinct reviewers (1.2% of 504 reviews scanned)
Reported by users: Reports of unexpected charges
One source onlyShown, not confirmed — the only source is user reviews.view evidence
A large number of reviewers report being charged when they did not expect it — including being charged after cancelling during a free trial, or when a trial turned into a paid plan without warning. We cannot see anyone's billing, so this is published as an attributed user report: what reviewers say, and how many of them said it.
What we saw: Surprise charges: raised by 30 distinct reviewers (6.0% of 504 reviews scanned)
Reported by users: Trial converts to a charge
One source onlyShown, not confirmed — the only source is user reviews.view evidence
The free trial demands a payment method up front and/or rolls into a paid subscription with no usable warning.
What we saw: Trial converts to a charge: raised by 18 distinct reviewers (3.6% of 504 reviews scanned)

Highlighted reviews

Representative public review excerpts shown as user reports, not Appworthy audit evidence.

Reports that the ads misrepresent the app
“Bait and switch — Download the app, fill out your form, get asked to pay an egregious subscription for some buggy software that can't even fill out checkboxes correctly. Don't waste your time.”
1★ · App Store · 2025-05-18
Reports that the ads misrepresent the app
“False advertising — I signed up for a $10 a month fee to use the pdf filler app and they charged me for a full year at $128.39. I have refuted these fees with PDF and Apple and been denied my funds for refund. This is unacceptable!”
1★ · App Store · 2024-02-16
Reports that the ads misrepresent the app
“No editing, just adding — You can’t edit documents, you can only add text. If you want to actually edit your preexisting pdf, get adobe. 1 star for false advertising and crappy user interface”
1★ · App Store · 2023-09-29

Assessment & version history

App changes and Appworthy events in one timeline.

Store listing updated to version 6.36.1.

What this app sells

Useful store-disclosed pricing, kept below the app listing.

Business modelFree

Prices and terms as disclosed by the store listing.