Units vs Papyr
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Units
Easily convert between a wide range of measurement units and currencies. Features a clear and simple interface for quick conversions of length, mass, volume, speed, and more. Supports popular currencies and common units for everyday use.
- Extensive unit conversions
- Multiple currency support
- Easy and clear handling
- Converts length, mass, volume
- Supports speed, area, pressure
- Converts time and temperature
Read full descriptionHide full description
Unit converter with many different units of measurement and currencies. Very easy handling. Clearly arranged. The most important units are amongst others: - Currencies: United States dollar, Euro, Japanese yen, Pound sterling - Length: Mile, kilometer, meter, inch - Mass: Kilogram, pound, ounce, gram - Volume: Liter, gallon (several) - Speed - Area - Units of information - Pressure - Power - Time - Temperature Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Papyr
This app offers a private and efficient way to scan documents on your iPhone or iPad. It features smart editing tools to enhance scans and allows export to various formats without requiring an account. All processing is done locally on your device for maximum privacy.
- On-device scanning and processing
- Smart editing tools
- Searchable PDF export
- Multi-page scan support
- Automatic titles and tags
- Export as PDF, JPEG, PNG
Read full descriptionHide full description
Papyr is a fast, private document scanner for iPhone and iPad. Capture pages, clean them up with smart editing tools, and export polished PDFs or images without creating an account. Everything happens on-device: scans, filters, OCR, titles, and tags stay local. Your documents never leave your phone unless you choose to share them. Highlights: - Printer-style scan enhancement for crisp, clean pages - Auto-detect edges with manual crop and rotate - Filters with brightness, contrast, and black point controls - Perspective correction for deskewing pages - Searchable PDFs with on-device OCR - Annotations for marks and signatures - Multi-page scans with reordering - Export as PDF, searchable PDF, JPEG, or PNG - Automatic titles and tags from OCR - Private by design with no account required
Screenshots
Verdict
The clearest difference is ratings volume: Units at 262 against Papyr's 1. Units also leads on device support (4 vs 2) and iOS requirement (15.0 vs 17.0). On price, rating, update cadence and ads 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. Units sells 3 in-app purchases, starting at $0.99 per month and Papyr sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Units against 5.0 for Papyr. That said, the two scores are not equally well evidenced: Units has 262 ratings behind it against 1, so its average is the more settled of the two.
Units ships an update every 5 weeks, Papyr every 2 months. The most recent releases landed on October 27, 2026 and October 21, 2026 respectively.
| Parameter | Units | Papyr |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (262 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 45.5% of reviews | — |
| Number of ratings | 262 — better | 1 |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Andreas Maier | Gagandeep Dolla |
Customer experience
Units
Papyr
In-app purchases
Units
- Monthly7 Days trial$0.991 Month
- Yearly7 Days trial$4.991 Year
- One time purchase$9.99
Papyr
- Quick thanks$0.99
- Coffee Time$1.99
- Big Support$3.99
