Comparison

PrintStream vs Unit Converter

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

Head to head
About

PrintStream

Features
Read full description

Print photos, PDFs, scanned documents and notes straight from your iPhone or iPad β€” no cables, no drivers, no sign-up. PrintStream finds your AirPrint printer automatically. Crop, enhance and lay out pages, then tap Print. PRINT ANYTHING β€’ Photos from your library or camera, auto-fit to A4, Letter, Legal or A5 β€’ PDFs from Files, ready to print in one tap β€’ Notes and lists typed right in the app β€’ Color or grayscale in one switch SCAN DOCUMENTS β€’ Document scanner with automatic edge detection β€’ Crop, straighten and print a clean copy EDIT BEFORE YOU PRINT β€’ Crop with free, 1:1, 4:3, 3:2 or 16:9 ratios β€’ Rotate and apply B&W, Sepia or Negative filters SAVE PAPER β€’ Batch print many photos at once β€’ 2-up and 4-up layouts, plus ID card front and back PRIVATE BY DESIGN β€’ Your documents go from your device to your printer β€” never to our servers β€’ Print history and saved PDFs stay on your device β€’ No account needed PRINTSTREAM PREMIUM Unlock no-watermark prints, the document scanner, batch printing, all filters and saved files. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://emrekotun.github.io/print_stream_privacy_policy/

About

Unit Converter

This free unit converter offers over 40 categories and 200+ currencies with live exchange rates. It features batch conversion, offline functionality, and a user-friendly interface with dark mode. All features are permanently free with no sign-up or data collection.

Highlights
  • 40+ conversion categories
  • 200+ currencies with live rates
  • Batch conversion
  • Offline functionality
  • Dark mode
  • CSV export
Features
Read full description

ConvertMaster is a completely free, ad-free unit converter. Launch and go. No sign-up. No data collection. All 40 categories are permanently free. No paywalls. ALL FEATURES FREE FOREVER: β€’ 40 categories β€” currency, length, weight, area, volume, temperature, speed, time, pressure, energy, power, data storage, cooking, angle, fuel, force, torque and more β€’ 200+ currencies with live exchange rates, updated hourly β€’ Currency picker with search β€” find any currency instantly β€’ Multilingual currency names (CLDR standard) β€’ Home page ranks categories by your usage frequency β€’ Restores your last-used category on launch β€’ Batch convert β€” enter multiple values, see all results instantly β€’ CSV export for batch results β€’ Metric and imperial side by side β€’ Scientific notation for extreme values β€’ Dark mode β€’ 100% offline (except live currency rates) No account. No sign-up. No data collection. No internet required (except live rates). Most converters limit their currency list or lock categories behind paywalls. ConvertMaster gives you everything β€” 200+ currencies with search, 40 categories β€” all for free, forever. Voluntary support available in app β€” optional, never nagged. No data collected. No tracking. No sharing. Your numbers, on your device only.

Screenshots

PrintStream4 screens
Unit Converter4 screens

Verdict

The call

The clearest difference is iOS requirement: Unit Converter at 13.0 against PrintStream's 17.0. On price, update cadence, ads and in-app purchases 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. PrintStream sells 3 in-app purchases, starting at $6.99 per 7 days and Unit Converter sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PrintStream ships an update fortnightly, Unit Converter every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference Β· 7 level
PrintStream versus Unit Converter: the parameters behind the verdict, then further details
ParameterPrintStreamUnit Converter
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyFortnightlyEvery 10 days β€” better
AdsNoNo
In-app purchasesYesYes
Monetizationβ€”Free
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.013.0 β€” better
Further details β€” not scored
Size14 MB25 MB
Age rating4+9+
DeveloperEMRE KOTUN磊 刘

In-app purchases

3 purchases

PrintStream

Subscriptions2
  • Weekly Premium Access$6.997 Days
  • Yearly Premium Access$39.991 Year
One-time1
  • Lifetime Premium$59.99
2 purchases

Unit Converter

One-time2
  • Unit Conversion Standard Version$2.99
  • Unit Conversion Pro Edition$5.99

Questions

Is PrintStream free?
PrintStream is free to download, with in-app purchases available.
Is Unit Converter free?
Unit Converter is free to download, with in-app purchases available.
Do PrintStream or Unit Converter have ads?
Neither PrintStream nor Unit Converter shows ads.
Which is updated more often, PrintStream or Unit Converter?
PrintStream ships an update fortnightly, and Unit Converter every 10 days. Most recently, PrintStream was updated on October 30, 2026 and Unit Converter on October 31, 2026.

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