Comparison

Thermos Pro vs eSign PDF

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

Head to head
About

Thermos Pro

Features
Read full description

THERMOS Pro is a powerful thermal printing app, designed to simplify and elevate your business printing needs. Connect seamlessly via Bluetooth to any compatible thermal printer and access a full suite of features for creating customized receipts, labels, and more. Key Features: Bluetooth Connection: Instant pairing with Bluetooth-enabled thermal printers, ensuring quick and reliable performance. Test Printing: Check print quality and setup with options for ESC/POS commands, welcome messages, and full ASCII character support. Custom Printing: Print any text or design you want with our fully customizable print feature. Tax and Receipt Customization: Create professional receipts that include tax details, perfect for small retail and service businesses. Product Labels & QR Code Generation: Print product labels and generate QR codes effortlessly for your inventory. Image Printing: Print logos, graphics, and other images directly from your device. Accurate Decimal Calculations: Handle detailed calculations to ensure precision on every receipt. THERMOS Pro is tailored for business owners, retailers, and service providers who need reliable, on-the-go printing solutions. With support for custom receipts, images, and QR codes, it’s a comprehensive tool that goes beyond basic thermal printing. Whether you're printing invoices, receipts, or product labels, THERMOS Pro delivers professional results every time.

About

eSign PDF

Features
Read full description

eSign PDF makes signing documents fast, secure, and effortless. Import PDF files, create electronic signatures, place signatures anywhere on documents, and export signed PDFs in seconds. Designed with a modern and premium experience, eSign PDF helps you manage contracts, agreements, forms, and important documents directly from your iPhone. KEY FEATURES β€’ Import PDF documents from Files app β€’ Draw electronic signatures with smooth gesture support β€’ Save and reuse unlimited signatures β€’ Add signatures anywhere on PDF pages β€’ Resize and move signatures easily β€’ Real-time PDF preview β€’ Export signed PDFs instantly β€’ Share signed documents securely β€’ Save signed files locally β€’ Manage signed document history β€’ Dark Mode support β€’ Fast and smooth PDF rendering β€’ Premium modern UI experience PREMIUM FEATURES β€’ Unlimited PDF signing β€’ Unlimited saved signatures β€’ Faster exports β€’ Ad-free experience β€’ Premium features and future updates WHY CHOOSE eSign PDF? β€’ Simple and easy to use β€’ Clean productivity-focused design β€’ Secure local storage β€’ Perfect for business, office, and personal use β€’ Works seamlessly on iPhone Subscription Information Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel subscriptions anytime in your App Store account settings. β€’ Terms of Use: https://sites.google.com/view/jyotivaidya/terms-conditions β€’ Privacy Policy: https://sites.google.com/view/jyotivaidya/privacy-policy Whether you need to sign contracts, forms, agreements, or official documents, eSign PDF provides everything you need in one powerful app.

Screenshots

Thermos Pro4 screens
eSign PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: Thermos Pro at none against eSign PDF's 3. Thermos Pro also leads on ads (none vs shown) and iOS requirement (15.6 vs 17.0). On price, update cadence and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. eSign PDF sells 3 in-app purchases, starting at $1.99 per 7 days. Thermos Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Thermos Pro ships an update every 3 weeks, eSign PDF every 4 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

Scorecard3 real differences Β· 3 level
Thermos Pro versus eSign PDF: the parameters behind the verdict, then further details
ParameterThermos ProeSign PDF
PriceFreeFree
Update frequencyEvery 3 weeks β€” betterEvery 4 weeks
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
DevicesiPhone, iPod β€” betteriPhone
Requires iOS15.6 β€” better17.0
Further details β€” not scored
Size41 MB19 MB
Age rating4+4+
DeveloperPrabal VermaJyoti Vaidya

In-app purchases

None

Thermos Pro

No in-app purchases

3 purchases

eSign PDF

Subscriptions3
  • Premium Weekly$1.997 Days
  • Premium Monthly$4.991 Month
  • Premium Yearly$19.991 Year

Questions

Is Thermos Pro free?
Thermos Pro is free to download, with no in-app purchases.
Is eSign PDF free?
eSign PDF is free to download, with in-app purchases available.
Do Thermos Pro or eSign PDF have ads?
eSign PDF shows ads; Thermos Pro does not.
Which is updated more often, Thermos Pro or eSign PDF?
Thermos Pro ships an update every 3 weeks, and eSign PDF every 4 weeks. Most recently, Thermos Pro was updated on October 30, 2026 and eSign PDF on October 24, 2026.

Other comparisons