Comparison

PrintStream vs UnitPro

Price, ratings, monetisation and update history for both apps, side by side — 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 — no cables, no drivers, no sign-up. PrintStream finds your AirPrint printer automatically. Crop, enhance and lay out pages, then tap Print. PRINT ANYTHING • Photos from your library or camera, auto-fit to A4, Letter, Legal or A5 • PDFs from Files, ready to print in one tap • Notes and lists typed right in the app • Color or grayscale in one switch SCAN DOCUMENTS • Document scanner with automatic edge detection • Crop, straighten and print a clean copy EDIT BEFORE YOU PRINT • Crop with free, 1:1, 4:3, 3:2 or 16:9 ratios • Rotate and apply B&W, Sepia or Negative filters SAVE PAPER • Batch print many photos at once • 2-up and 4-up layouts, plus ID card front and back PRIVATE BY DESIGN • Your documents go from your device to your printer — never to our servers • Print history and saved PDFs stay on your device • 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

UnitPro

Features
Read full description

The only unit converter you'll ever need. UnitPro handles 10 categories of conversions — all offline, no ads, no accounts. SUPPORTED CATEGORIES: • Length (m, ft, mi, km, in...) • Mass (kg, lb, oz, g, ton...) • Temperature (°C, °F, K) • Area (m², ft², acre, hectare...) • Volume (L, gal, mL, cup...) • Speed (km/h, mph, m/s, knot...) • Time (s, min, hr, day, week...) • Data (B, KB, MB, GB, TB...) • Energy (J, cal, kWh, BTU...) • Currency (30+ currencies with offline snapshots) FEATURES: • Smart input with unit suggestions • One-tap reverse and copy/share • 200-entry searchable history • Favorites with Quick Pick on home • Bilingual: English and Chinese • Works 100% offline — perfect for travel Whether you're an engineer doing precise calculations, a traveler converting currencies on a plane, or a student working on homework — UnitPro has you covered.

Screenshots

PrintStream4 screens
UnitPro4 screens

Verdict

The call

The clearest difference is in-app purchases: UnitPro at none against PrintStream's 3. UnitPro also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, 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. PrintStream sells 3 in-app purchases, starting at $6.99 per 7 days. UnitPro asks for nothing beyond the download.

UpkeepUpdate frequency

PrintStream ships an update fortnightly, UnitPro every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 4 level
PrintStream versus UnitPro: the parameters behind the verdict, then further details
ParameterPrintStreamUnitPro
PriceFreeFree
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size14 MB1 MB
Age rating4+4+
DeveloperEMRE KOTUN晓 郭

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
None

UnitPro

No in-app purchases

Questions

Is PrintStream free?
PrintStream is free to download, with in-app purchases available.
Is UnitPro free?
UnitPro is free to download, with no in-app purchases.
Do PrintStream or UnitPro have ads?
Neither PrintStream nor UnitPro shows ads.
Which is updated more often, PrintStream or UnitPro?
PrintStream ships an update fortnightly, and UnitPro every 3 weeks. Most recently, PrintStream was updated on October 30, 2026 and UnitPro on November 5, 2026.

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