Comparison

Expert Sign vs Sign On PDF Documents & Forms

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

Head to head
About

Expert Sign

Easily sign and date all your documents and PDFs by drawing your signature directly on the screen. Import various file types, add text and dates, and precisely position annotations before exporting your finalized documents via email or other apps.

Highlights
  • Draw and save custom signatures
  • Import PDF, Word, and image files
  • Add text and dates
  • Precise annotation placement
  • Export documents via email or other apps
Features
Read full description

Sign any document in seconds. Expert Sign turns your iPhone into a pocket signature pad: save your signature once, drop it on any PDF or photo of a document, and send it straight back. Open the file, sign it, share it. That is the whole app. WHAT YOU CAN DO • Draw your signature with your finger, in black or blue ink • Keep several signatures and initials, and pick the right one in a tap • Import a photo of your handwritten signature: the paper background is removed automatically • Sign PDF documents and photos of paper documents • Add today's date in one tap • Drag to place each signature exactly where it belongs, pull the corner to resize it • Duplicate a signature to initial every page • Import from Files, Photos, Mail, iCloud Drive or any cloud service • Import straight from Expert Scan to sign what you just scanned • Export by email, by message, or into any other app BUILT FOR PAPERWORK THAT WILL NOT WAIT Rental agreements, NDAs, school forms, delivery notes, invoices, consent forms, employment contracts: anything that arrives as a PDF and has to go back signed today. PRIVATE BY DESIGN Your documents are signed right on your iPhone. They are never uploaded to our servers. FREE TO TRY Sign your first 10 documents for free. Expert Sign Plus, a one-time purchase, unlocks unlimited signing and removes ads. Part of the Expert suite, alongside Expert Scan. Questions or ideas: https://jmapp.com

About

Sign On PDF Documents & Forms

Features
Read full description

Sign On PDF Documents & Forms helps you fill, sign, scan, and send PDF documents from your iPhone or iPad without printing. Use it for contracts, invoices, applications, school forms, work documents, and everyday paperwork that needs a signature fast. Key features: - Add electronic signatures to PDF documents - Fill PDF forms with text, dates, initials, and notes - Draw, type, or import your signature - Scan paper documents into PDFs - Save signed documents for reuse and sharing - Export through Files, Mail, Messages, and other apps - Keep documents private on your device How it works: 1. Import or scan a PDF document 2. Add your signature, text, initials, or date 3. Save and share the finished PDF Sign On PDF Documents & Forms is built for quick, practical document signing wherever you are. Subscription details: - Title: Sign On PDF Documents & Forms Premium - Length: 1 month or 1 year - Price: $4.99 per month or $39.99 per year, auto-renewing - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://docs.google.com/document/d/1b2FQZ_HK2I_6ZBJhiaJw_Vii5aKW9D4dYjGfP9C8efU/edit?usp=sharing

Screenshots

Expert Sign4 screens
Sign On PDF Documents & Forms4 screens

Verdict

The call

The clearest difference is ads: Sign On PDF Documents & Forms at none against Expert Sign's shown. Sign On PDF Documents & Forms also leads on update cadence (every 3 weeks vs every 2 months). Expert Sign's advantage is iOS requirement (15.0 vs 17.6). On price, in-app purchases and device support 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. Expert Sign sells 1 one-off in-app purchase and Sign On PDF Documents & Forms sells 3 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Expert Sign ships an update every 2 months, Sign On PDF Documents & Forms every 3 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 7 level
Expert Sign versus Sign On PDF Documents & Forms: the parameters behind the verdict, then further details
ParameterExpert SignSign On PDF Documents & Forms
PriceFreeFree
Rating4.4 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size15 MB25 MB
Age rating4+4+
DeveloperJulien meyerFenuku Kekeli

In-app purchases

1 purchases

Expert Sign

One-time1
  • Expert Sign$1.99
3 purchases

Sign On PDF Documents & Forms

Subscriptions2
  • All Access for a year$4.991 Year
  • All Access for a month$7.991 Month
One-time1
  • All Access$99.99

Questions

Is Expert Sign free?
Expert Sign is free to download, with in-app purchases available.
Is Sign On PDF Documents & Forms free?
Sign On PDF Documents & Forms is free to download, with in-app purchases available.
Do Expert Sign or Sign On PDF Documents & Forms have ads?
Expert Sign shows ads; Sign On PDF Documents & Forms does not.
Which is updated more often, Expert Sign or Sign On PDF Documents & Forms?
Expert Sign ships an update every 2 months, and Sign On PDF Documents & Forms every 3 weeks. Most recently, Expert Sign was updated on October 24, 2026 and Sign On PDF Documents & Forms on October 7, 2026.

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