Comparison

Thesus vs Sign Documents

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

Head to head
About

Thesus

Read full description

Ever feel like your ideas are connected but hard to put into words? Thesus guides you in weaving thoughts and feelings into a cohesive thesis.

About

Sign Documents

Effortlessly sign PDFs and images directly on your iPhone without needing a printer, scanner, or account. Import documents, add your signature by drawing, typing, or photographing it, and share the final file securely on your device.

Highlights
  • Sign PDFs and images
  • Multiple signature creation methods
  • Import from cloud storage
  • Scan paper documents
  • Reusable signature library
  • Export flattened PDFs
  • Share via iOS share sheet
Features
Read full description

Sign documents on your iPhone in seconds — no printer, no scanner, no account. Sign Documents turns your phone into your pen. Import a PDF or photo, drop your signature exactly where it needs to go, and share the finished file. That's it. Nothing to sign up for, and nothing ever leaves your device. PRIVATE BY DESIGN - No account, ever — start signing the moment you open the app - No cloud, no servers — your documents and signatures stay on your iPhone - Re-open and re-share recently signed files anytime, right from your device THREE WAYS TO MAKE YOUR SIGNATURE - Draw it naturally with your finger - Type your name and pick a handwriting-style font - Photograph your real signature on paper — we remove the background automatically for a clean, transparent signature - Choose from 6 ink colors SIGN ANY DOCUMENT - Import PDFs and images from Files — iCloud Drive, Google Drive, Dropbox, OneDrive and more - Scan paper with your camera — multi-page, edges detected automatically, straight to PDF - Bring in photos from your library and sign those too PLACE IT PERFECTLY - Drag your signature anywhere on the page - Pinch to resize, twist to rotate - Add more than one signature per page - Apply the same signature to every page in one tap - Flip through multi-page documents and sign each one A REUSABLE SIGNATURE LIBRARY - Set up your signature once, reuse it on every document - Name, search, rename or delete anytime SHARE ANYWHERE - Export a clean, flattened PDF that looks identical in every app - Send via the iOS share sheet — Mail, Messages, WhatsApp, Files, AirDrop, or any app Download Sign Documents and sign your first documents free. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Apple ID settings. Privacy Policy: https://sign-documents-bbafb.web.app/privacy Terms of Use: https://sign-documents-bbafb.web.app/terms

Screenshots

Thesus3 screens
Sign Documents4 screens

Verdict

The call

The clearest difference is in-app purchases: Thesus at none against Sign Documents's 2. Thesus also leads on ads (none vs shown). Sign Documents's advantage is iOS requirement (17.0 vs 26.0). On price 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. Sign Documents sells 2 in-app purchases, starting at $2.49 per 7 days. Thesus asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Thesus versus Sign Documents: the parameters behind the verdict, then further details
ParameterThesusSign Documents
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequency—Every 10 days
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS26.017.0 — better
Further details — not scored
Size3 MB27 MB
Age rating12+4+
DeveloperCaleb BoltonDaniil Kabachuk

In-app purchases

None

Thesus

No in-app purchases

2 purchases

Sign Documents

Subscriptions2
  • Sign Documents Pro$2.497 Days
  • Sign Documents Pro3 Days trial$4.997 Days

Questions

Is Thesus free?
Thesus is free to download, with no in-app purchases.
Is Sign Documents free?
Sign Documents is free to download, with in-app purchases available.
Do Thesus or Sign Documents have ads?
Sign Documents shows ads; Thesus does not.

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