Comparison

eSign vs UnitFlow

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

Head to head
About

eSign

Features
Read full description

eSign turns your iPhone & iPad into a complete e-signature tool — create a signature, sign any PDF, and share it in seconds. No printer, no scanner, no paper. • Sign PDF documents anywhere, anytime • Create a signature 3 ways: draw, scan from paper, or import a photo • Fill & sign forms, then flatten to a secure, share-ready PDF • Signature Library with iCloud sync across all your devices • 100% on-device processing — your documents stay private CREATE YOUR PERFECT SIGNATURE Your signature is personal, so eSign gives you full control over how you make it: • Draw with precision — sign directly on screen with your finger or Apple Pencil for a smooth, natural result. • Scan from paper — point your camera at a pen-and-paper signature and our image processing removes the background automatically, leaving a crisp, transparent signature. • Import from your library — already have a digital signature? Import it from Photos and reuse it instantly. eSIGN DOCUMENTS IN SECONDS 1. Import your PDF — open any document from Files, iCloud Drive, or any connected cloud service. 2. Place your signature — tap to add it, then move, resize, and rotate it to fit any form field perfectly. 3. Save & share — export a new, secure PDF and send it via email, AirDrop, Messages, or back to the cloud. YOUR SIGNATURE & DOCUMENT HUB • Signature Library — store every signature you create in one secure place and manage multiple signatures for personal or professional use. With iCloud Sync they're always available across your iOS devices. • Document Management — keep all your signed documents organized; view, search, and sort to find what you need fast. Download eSign today and stop printing, scanning, and mailing paper. Create your signature, sign your documents, and go fully digital. Privacy Policy: https://sites.google.com/view/esign-privacy-policy/home Terms of Use: https://sites.google.com/view/esign-terms-of-service/home

About

UnitFlow

Features
Read full description

UnitFlow – Fast, Accurate, Offline Unit Converter UnitFlow is a reliable and fully offline unit conversion tool designed for everyday use. Convert length, weight, temperature, kitchen measurements, and even your own custom currencies — all without an internet connection. Ideal for students, professionals, travelers, home cooks, and anyone who needs quick and precise conversions. Key Features Comprehensive Conversion Categories Length: millimeters, centimeters, meters, kilometers, inches, feet, yards, miles
Weight: grams, kilograms, ounces, pounds, tons
Temperature: Celsius, Fahrenheit, Kelvin
Kitchen: cups, tablespoons, teaspoons, milliliters, liters
Currency: add custom currencies, set base currency, manually update exchange rates, and show/hide currencies 
Fully Offline and Fast All conversions happen instantly on your device. No internet required, no delays, and no data ever leaves your phone. Custom Currency Management * Add unlimited currencies * Set your preferred base currency * Enter your own exchange rates * Control visibility for a simpler interface
All information is stored locally. Modern and User-Friendly Interface * Clean layout with color-coded categories * Smooth animations * Material Design 3 styling * Dark mode support * Simple and minimal UI Privacy First UnitFlow does not collect data, track usage, or require an account. Everything remains on your device.

Screenshots

eSign4 screens
UnitFlow4 screens

Verdict

The call

The clearest difference is in-app purchases: UnitFlow at none against eSign's 2. UnitFlow also leads on iOS requirement (13.0 vs 17.6). On price, ads 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. eSign sells 2 in-app purchases, starting at $3.99 per 7 days. UnitFlow asks for nothing beyond the download.

Scorecard2 real differences · 4 level
eSign versus UnitFlow: the parameters behind the verdict, then further details
ParametereSignUnitFlow
PriceFreeFree
Update frequencyEvery 9 months—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone, iPod — better
Requires iOS17.613.0 — better
Further details — not scored
Size9 MB19 MB
Age rating4+4+
DeveloperHarun Mert GokcegozSHIM THEE YAP

In-app purchases

2 purchases

eSign

Subscriptions1
  • PRO Access$3.997 Days
One-time1
  • PRO Lifetime Access$24.99
None

UnitFlow

No in-app purchases

Questions

Is eSign free?
eSign is free to download, with in-app purchases available.
Is UnitFlow free?
UnitFlow is free to download, with no in-app purchases.
Do eSign or UnitFlow have ads?
Neither eSign nor UnitFlow shows ads.

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