52
BU Score
Solid
PDF PRO Files: Einfacher!
✍️ BU Analytics Review
“
PDF PRO Files: Einfacher! is an iOS app from Kairoos Solutions SL in the Business category, currently rated 4.5★ across 25 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.
Our BU Score puts it at 52 — Solid (established niche player). For a Business app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.5★)METRIC | +$2,200 | |
| Mature app (10y old)METRIC | +$1,500 | |
| Multilingual (10 languages)METRIC | +$1,500 | |
| Pre-traction phase (25 ratings)METRIC | −$300 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 271 MB🔞 17+📱 iOS 16.4+🔖 v4.4.0🔄 updated 1y ago🌐 AR, EN, FR, DE, IT +5📂 Business💰 Paid🚀 Launched 2015 (10y old)
📝 About this app
PDF Files is a smart and powerful but easy to use PDF reader, editor and file manager. Organize your libraries and collections of PDF in unlimited folders and subfolders. You can also convert Microsoft Office, iWork, and other documents to PDF and annotate them!
With PDF Files you can:
+ Annotate, fill in, sign and highlight PDFs: lets you feel the ink and paper thanks to the intuitive, fast and pixel-perfect precise control of your Apple Pencil with useful tilt and pressure sensitivity, and support for palm rejection.
Leap forward into the future of PDFs with an optional AI Assistant that is designed to assist you:
+ Aid in understanding: What’s that word? Allow the AI Assistant to explain. Need a brief? Ask it to summarize. Language barrier? Request for a translation. Your assistant is ready to lend a hand. Chat with the AI Assistant about your PDF!
+ Use the iOS camera to scan documents then edit and annotate them.
+ Organize small or huge collections of PDFs files
+ Powerful document browser integrated with Files app and any cloud services like iCloud, Dropbox, Box, GDrive, oneDrive, etc. to import, export and sync your files.
+ Powerful PDF Text to Speech read aloud.
+ File and documents manager. Customize the cover of folders and subfolders with your own images.
+ Quickly find your documents: List of most recent opened documents, order by date or by title and search by file name.
+ You can use your iPad and Apple Pencil (and other supported styluses) to write by hand in any text field in the PDF or in your own rich text boxes, like the search field in Safari or a text field in Mail.
+ Protect your PDF documents with a security passcode
+ Open PDF email attachments and store them in PDF Files
+ Bookmark pages in your documents like in an actual book
+ Zoom pages and read them in a distraction-free user interface
+ Reader mode interface for distraction free moments.
+ Dark mode supported. Ready for aviation use.
Privacy Policy
http://www.noteswriter.com/Kairoos_Privacy_Policy.html
EULA
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
With PDF Files you can:
+ Annotate, fill in, sign and highlight PDFs: lets you feel the ink and paper thanks to the intuitive, fast and pixel-perfect precise control of your Apple Pencil with useful tilt and pressure sensitivity, and support for palm rejection.
Leap forward into the future of PDFs with an optional AI Assistant that is designed to assist you:
+ Aid in understanding: What’s that word? Allow the AI Assistant to explain. Need a brief? Ask it to summarize. Language barrier? Request for a translation. Your assistant is ready to lend a hand. Chat with the AI Assistant about your PDF!
+ Use the iOS camera to scan documents then edit and annotate them.
+ Organize small or huge collections of PDFs files
+ Powerful document browser integrated with Files app and any cloud services like iCloud, Dropbox, Box, GDrive, oneDrive, etc. to import, export and sync your files.
+ Powerful PDF Text to Speech read aloud.
+ File and documents manager. Customize the cover of folders and subfolders with your own images.
+ Quickly find your documents: List of most recent opened documents, order by date or by title and search by file name.
+ You can use your iPad and Apple Pencil (and other supported styluses) to write by hand in any text field in the PDF or in your own rich text boxes, like the search field in Safari or a text field in Mail.
+ Protect your PDF documents with a security passcode
+ Open PDF email attachments and store them in PDF Files
+ Bookmark pages in your documents like in an actual book
+ Zoom pages and read them in a distraction-free user interface
+ Reader mode interface for distraction free moments.
+ Dark mode supported. Ready for aviation use.
Privacy Policy
http://www.noteswriter.com/Kairoos_Privacy_Policy.html
EULA
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
🆕 What's New · v4.4.0
- Added support for iOS 18 and iPadOS 18!
- Improved stability and fixed minor bugs.
- Improved stability and fixed minor bugs.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- PDF PRO Files: Einfacher!
- Developer
- Kairoos Solutions SL
- Bundle ID
- com.studio5.pdf
- App Store URL
- Open in App Store
- Category
- Business
- Content rating
- 17+
- Languages
- AR, EN, FR, DE, IT, JA, PT, RU, ZH, ES
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- OG image
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $86/mo
- Top-grossing rank
- Outside top 100 in US Business
- All-time revenue
- Not found
- Pricing
- Not found
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- https://apps.apple.com/us/app/letterloop-group-newsletters/id6468623700
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- https://apps.apple.com/us/iphone/story/id1603519753
📈Ratings growth25 ratings+2400% lifetimeShow 3-year history estimate ▾
Tracked (5 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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