Comparison

Thermos Pro vs KeyBlock

Price, ratings, monetisation and update history for both apps, side by side — 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

KeyBlock

This app uses NFC stickers to physically block distracting applications on your phone, helping you regain focus without relying on willpower. Simply tap your phone to a sticker to activate blocking modes like Deep Work or Sleep, and tap again to resume access.

Highlights
  • Block distracting apps with NFC tap
  • Four built-in focus modes
  • Dumb Phone mode for essentials
  • Activity dashboard for progress tracking
  • Discover page with focus tools
Read full description

Block distracting apps with a physical tap. No willpower needed. KeyBlock turns a simple NFC sticker into a real barrier between you and your phone addiction. Tap your phone to the sticker — your distracting apps are blocked instantly. No passcodes to bypass. No limits to ignore. A physical action that actually sticks. WHY IT WORKS Screen time limits fail because they're software blocking software — you bypass them in 3 seconds. KeyBlock is different. The physical act of walking to your sticker and tapping creates a real barrier your brain can't shortcut. FEATURES • Block distracting apps instantly with one NFC tap • 4 built-in modes: Deep Work, Sleep, Family Time, Gym • Dumb Phone mode — strip your phone down to essentials • Activity dashboard to track your progress • Discover page with curated focus tools, breathwork, and more HOW IT WORKS 1. Place a KeyBlock sticker on your desk, nightstand, or journal 2. Open the app and choose which apps to block 3. Tap your phone to the sticker — done. Blocked. 4. Tap again when you're ready to unblock WORKS WITH iPhone XS and later. Requires KeyBlock NFC stickers (sold separately at keyblock.app). Take back your time. Back to living. Terms of Service - https://keyblock.app/pages/terms - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy - https://keyblock.app/pages/privacy

Screenshots

Thermos Pro4 screens
KeyBlock4 screens

Verdict

The call

The clearest difference is iOS requirement: Thermos Pro at 15.6 against KeyBlock's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Thermos Pro ships an update every 3 weeks, KeyBlock every 6 weeks. The most recent releases landed on September 15, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 8 level
Thermos Pro versus KeyBlock: the parameters behind the verdict, then further details
ParameterThermos ProKeyBlock
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better17.0
Further details — not scored
Size41 MB26 MB
Age rating4+4+
DeveloperPrabal VermaKeyBlock Tech, LLC

In-app purchases

None

Thermos Pro

No in-app purchases

None

KeyBlock

No in-app purchases

Questions

Is Thermos Pro free?
Thermos Pro is free to download, with no in-app purchases.
Is KeyBlock free?
KeyBlock is free to download, with no in-app purchases.
Do Thermos Pro or KeyBlock have ads?
Neither Thermos Pro nor KeyBlock shows ads.
Which is updated more often, Thermos Pro or KeyBlock?
Thermos Pro ships an update every 3 weeks, and KeyBlock every 6 weeks. Most recently, Thermos Pro was updated on September 15, 2026 and KeyBlock on October 15, 2026.

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