Comparison

ExplainThisDoc vs PaperHero

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ExplainThisDoc

Features
Read full description

Keep letters, bills, and PDFs together. Find your documents again and get difficult letters explained whenever you need help understanding them. ExplainThisDoc helps you keep personal paperwork handy on your iPhone and iPad without maintaining a folder system. Explanations, personal notes, and linked documents stay together. Your archive and everyday document tools are free. Only Pro explanations use credits: one credit per analysis. No subscription. COLLECT AND FIND Scan your letters, documents, and paperwork with your camera, or import PDFs, photos, and supported files already saved on your phone, attached to emails, or shared by other apps. You can also add text from the clipboard. Use search and filters to find documents in your archive. Link related documents, such as a contract and its invoice. WORK WITH THE ORIGINAL Open documents in the built-in reader and search their recognized text. Highlight passages, add annotations, and add a signature. Rotate saved PDF and scan pages. CHOOSE HOW TO UNDERSTAND • Archive only: Save, read, and find documents without using AI. • On-device analysis: Get categorization, free short summaries, and key information directly on your device. • Pro analysis: Get more detailed explanations, context, and possible next steps. Depending on the document and the analysis you choose, results may highlight deadlines, amounts, tasks, and important conditions. Add recognized appointments to your calendar and open addresses in Maps. PRO WHEN YOU NEED IT Each Pro analysis uses one credit. Buy additional credits as one-time in-app purchases. Your first installation includes three trial credits, provided once, for three Pro analyses. Your free archive remains usable without credits. YOUR DOCUMENTS, YOUR CONTROL Your archive is stored on your device. Optionally sync it through iCloud across your own devices using the same account. Protect access with Face ID, and use export and import to back up or transfer your collection. No ads or trackers. Text recognition and on-device analysis run on your device. For Pro, recognized document text is sent through our server to your chosen AI provider. Original files, PDFs, photos, and scans are not sent to these AI providers. Start with one document.

About

PaperHero

Features
Read full description

Letters, bills, contracts, receipts: PaperHero turns your paper pile into an archive where you find anything in seconds. Take a photo, the AI suggests a title, folder and tags, done. HOW IT WORKS Snap it or upload it Scan letters with your camera or upload PDFs and images. PaperHero reads the text, handwriting included, and makes every document searchable. The AI files it for you For every new document PaperHero suggests a name, a description, the right folder and tags. Confirm with one tap or adjust. Just ask your documents "When can I cancel my phone contract?" The AI assistant searches your own documents, answers and names its source, so you can check for yourself. Finds what's inside Full-text search looks through the content of your documents, not just file names. Even the handwritten word on the plumber's receipt. NEW: EVERYTHING AT A GLANCE Grid view with previews Flip through your folders like a stack of paper: every document shows its first page. Sort by name, document number, creation date or last change. No storage limit Your archive is allowed to grow. Plans differ in how many new pages you process per month, not in how much you can keep. FOR THE WHOLE FAMILY Organise together Share folders with your partner or family and set per folder who can read, edit or manage everything. Tax papers for both of you, the diary just for you. Prepared for emergencies Choose trusted people who can get access to your documents if you have been inactive for a long time. So nobody has to hunt for the insurance policy when it matters. SECURE, HOSTED IN GERMANY • Your documents are stored encrypted on servers in Germany, under the GDPR. • The key to your files is protected by your password. • Two-factor sign-in for your account. • The AI runs in the EU only, no US cloud. On the Big plan it even runs on our own hardware. WORKS EVERYWHERE iPhone, iPad, other mobile operating systems and the web, always in sync. For the technically minded there is also a REST API and a command-line tool. SUBSCRIPTION PaperHero offers auto-renewable subscriptions: • PaperHero Small – €5.99 / month • PaperHero Medium – €12.99 / month • PaperHero Big – €26.99 / month New customers can start with a 30-day introductory offer for €1, which then renews as a Small subscription at €5.99 / month. Every plan is a monthly, auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Terms of Use (EULA): https://www.paperhero.io/terms Privacy Policy: https://www.paperhero.io/privacy

Screenshots

ExplainThisDoc4 screens
PaperHero4 screens

Verdict

The call

The clearest difference is iOS requirement: PaperHero at 18.0 against ExplainThisDoc's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ExplainThisDoc sells 3 one-off in-app purchases and PaperHero sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ExplainThisDoc ships an update every 3 days, PaperHero every 4 days. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 5 level
ExplainThisDoc versus PaperHero: the parameters behind the verdict, then further details
ParameterExplainThisDocPaperHero
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 4 days
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.0 — better
Further details — not scored
Size90 MB18 MB
Age rating12+9+
DeveloperJulian Hegerblaumedia GmbH

In-app purchases

3 purchases

ExplainThisDoc

One-time3
  • 5 Credits$2.99
  • 50 Credits$24.99
  • 200 Credits$69.99
3 purchases

PaperHero

Subscriptions3
  • PaperHero Small1 Month trial$4.991 Month
  • PaperHero Medium$11.991 Month
  • PaperHero Big$24.991 Month

Questions

Is ExplainThisDoc free?
ExplainThisDoc is free to download, with in-app purchases available.
Is PaperHero free?
PaperHero is free to download, with in-app purchases available.
Do ExplainThisDoc or PaperHero have ads?
Neither ExplainThisDoc nor PaperHero shows ads.
Which is updated more often, ExplainThisDoc or PaperHero?
ExplainThisDoc ships an update every 3 days, and PaperHero every 4 days. Most recently, ExplainThisDoc was updated on November 9, 2026 and PaperHero on November 10, 2026.

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