eSign vs UnitFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eSign
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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
UnitFlow
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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
Verdict
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
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.
| Parameter | eSign | UnitFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Harun Mert Gokcegoz | SHIM THEE YAP |
In-app purchases
eSign
- PRO Access$3.997 Days
- PRO Lifetime Access$24.99
UnitFlow
No in-app purchases









