PrintStream vs UnitPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrintStream
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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/
UnitPro
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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
Verdict
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
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.
PrintStream ships an update fortnightly, UnitPro every 3 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | PrintStream | UnitPro |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | EMRE KOTUN | 晓 郭 |
In-app purchases
PrintStream
- Weekly Premium Access$6.997 Days
- Yearly Premium Access$39.991 Year
- Lifetime Premium$59.99
UnitPro
No in-app purchases








