Comparison

Sign PDF & PDF Editor vs Insta forms

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

Head to head
About

Sign PDF & PDF Editor

Features
Read full description

Doc Hero is the fastest way to sign and fill documents on your iPhone and iPad. Import a PDF, scan a paper form, or open a Word file, place your signature, and share a clean signed PDF in seconds. You don’t need an account or a printer. SIGN IN SECONDS • Draw your signature with your finger or Apple Pencil, type it in a handwriting style, or import it from a photo • Save as many signatures and initials as you like and reuse them with one tap • Guest signature: let someone else sign without saving their signature on your device • Place a signature or initials on every page at once, in the same spot FILL OUT ANY FORM • Add text, initials, and dates in the format you choose • Checkmarks, crosses, checkboxes, stars, and other symbols • Stamps: Approved, Rejected, Draft, Confidential, Received, and Paid • Circles, rectangles, arrows, and freehand drawing • Highlight, underline, strike through, and add notes • Drag to move and resize anything, and tap any annotation to edit it again OPEN ALMOST ANYTHING • PDFs, Word documents, images, RTF, HTML, and plain text are converted to PDF automatically • Scan paper documents with your camera, with automatic edge detection • Turn photos into a multi-page PDF • Open files straight from Mail, Files, Safari, and other apps with “Open in Doc Hero” • Password-protected PDFs open once you enter the password SHARE WITH CONFIDENCE • Export a crisp signed PDF where text stays sharp and selectable • Protect the PDF you share with a password • Save to Files or share by email, message, or any app • Edit your annotations again later, even after signing • Duplicate a document, with or without annotations, to reuse it as a template PRIVATE AND SECURE • Your documents and signatures stay on your device • Lock Doc Hero with Face ID, Touch ID, or your passcode • No account or sign-up needed ON-DEVICE AI (iOS 26 and later) • Get a quick summary of any document before you sign it • Pull out the key points: parties, dates, obligations, and terms • Ask questions about the document • Runs on device with Apple Intelligence, so your documents aren’t sent to an AI server BUILT FOR IPHONE AND IPAD • Designed for iPad’s larger screen, with your recent documents and pages in a sidebar • Works great with Apple Pencil Privacy Policy:https://digitalhole.github.io/DocHero.html Terms of Use:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Insta forms

Features
Read full description

Insta Forms is the fastest way to build, fill, and share surveys and fillable PDF forms right on your iPhone or iPad. Everything works offline, sharing works through AirDrop or peer-to-peer, and forms exported as PDFs are true interactive AcroForm documents that anyone can fill in Files, Preview, or Adobe Acrobat. Build Any Form • 13 question types: short text, paragraph, number, email, date, time, multiple choice, checkboxes, dropdown, star rating, linear scale, yes/no, and image. • Reorder questions with drag and drop. • Attach images to any question or use image-only reference questions. • Optional "Why did you pick this?" comment box on rating, scale, choice, and yes/no questions. • Mark any question as required with built-in validation before submission. Fill and Collect • Complete surveys directly inside the app using the appropriate control for each question. • Every response is stored locally with SwiftData. • Auto-save drafts so you can continue later. • Edit submitted responses anytime. • View all responses for each form, sorted by newest. Export as PDF Generate two types of PDFs directly on your device: • Flat PDF for printing and sharing. • Fillable AcroForm PDF with interactive text fields, radio buttons, checkboxes, and dropdowns compatible with Files, Preview, and Adobe Acrobat. • Preview and fill PDFs before sharing. • Export completed responses as flat PDFs or editable pre-filled forms. Share Anywhere • Share through AirDrop, Messages, Mail, Files, or any app supported by the iOS Share Sheet. • Send forms directly to nearby devices without an internet connection. • Recipients open encrypted .instaform files and receive the exact same form. • Encrypted files can only be opened with Insta Forms. Start from a Template Includes 17 ready-to-use templates: • Healthcare: Patient Intake, Symptom Check-in, Post-Visit Feedback. • Schools and Colleges: Student Enrollment, Course Evaluation, Field Trip Permission. • Corporate: Employee Onboarding, Performance Review, Manager Feedback. • Real Estate and Home: Home Inspection, Rental Application, Move-In Checklist. • Events: Event Registration, RSVP, Post-Event Feedback. • Business and Services: Customer Feedback, Contact Form, Job Application. • Automotive: Vehicle Inspection, Service Check-In. Choose any template, customize the questions, and start collecting responses. Made for iOS • Built with native SwiftUI and SwiftData. • Supports Light, Dark, and System appearance. • 10 accent color themes. • Animated splash screen and onboarding. • Search and filter forms by keyword, draft status, or response count. • Archive forms and restore them anytime. • Offline indicator with quick access to iOS Settings. Insta Forms is built for professionals who need fast, private, and reliable forms. Perfect for home inspectors, healthcare staff, teachers, HR teams, businesses, and anyone who wants a powerful form builder without subscriptions.

Screenshots

Sign PDF & PDF Editor4 screens
Insta forms4 screens

Verdict

The call

The clearest difference is in-app purchases: Insta forms at none against Sign PDF & PDF Editor's 1. Insta forms also leads on ads (none vs shown) and update cadence (daily vs every 5 weeks). Sign PDF & PDF Editor's advantage is iOS requirement (17.0 vs 26.5). 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 PDF & PDF Editor sells 1 one-off in-app purchase. Insta forms asks for nothing beyond the download.

UpkeepUpdate frequency

Sign PDF & PDF Editor ships an update every 5 weeks, Insta forms daily. The most recent releases landed on November 5, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 2 level
Sign PDF & PDF Editor versus Insta forms: the parameters behind the verdict, then further details
ParameterSign PDF & PDF EditorInsta forms
PriceFreeFree
Update frequencyEvery 5 weeksDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better26.5
Further details — not scored
Size14 MB11 MB
Age rating4+4+
DeveloperArima JainVijayvir Singh

In-app purchases

1 purchases

Sign PDF & PDF Editor

One-time1
  • Unlock All Features$3.99
None

Insta forms

No in-app purchases

Questions

Is Sign PDF & PDF Editor free?
Sign PDF & PDF Editor is free to download, with in-app purchases available.
Is Insta forms free?
Insta forms is free to download, with no in-app purchases.
Do Sign PDF & PDF Editor or Insta forms have ads?
Sign PDF & PDF Editor shows ads; Insta forms does not.
Which is updated more often, Sign PDF & PDF Editor or Insta forms?
Sign PDF & PDF Editor ships an update every 5 weeks, and Insta forms daily. Most recently, Sign PDF & PDF Editor was updated on November 5, 2026 and Insta forms on October 24, 2026.

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