Comparison

Measures Unit Converter vs Cards plus

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

Head to head
About

Measures Unit Converter

This app offers a comprehensive unit conversion tool with over 971 units across 40 categories, including 173 currencies with real-time exchange rates. It features an intuitive interface, a scientific calculator, and offline functionality, making it ideal for precise conversions.

Highlights
  • 971 units across 40 categories
  • 173 currencies with real-time rates
  • Offline conversion functionality
  • Scientific calculator
  • Intuitive redesigned interface
  • Customizable themes
Features
Read full description

Measures is the ultimate unit converter for iOS featuring 971 units across 40 categories and 173 currencies with real-time rates. NEW VERSION - COMPLETELY REDESIGNED: • 971 units across 40 categories • 173 currencies with automatic real-time rates • Completely redesigned, intuitive interface • Scientific calculator with advanced functions • Enhanced favorites with drag & drop reordering • Intelligent search with instant results • Fully customizable with 5 beautiful themes and many options • Works completely offline - no internet required for conversions PROFESSIONAL CATEGORIES: • Traditional: Length, mass, volume, area, temperature • Scientific: Energy, force, pressure, density, viscosity • Specialized: Clothing sizes, blood sugar, typography • Currencies: 173 countries with real-time rates • Plus 32 additional categories! Perfect for scientists, engineers, students, and professionals who need precise conversions.

About

Cards plus

Securely store and organize all your important documents, including IDs, insurance cards, and PDFs, in a private digital wallet. Access them quickly with advanced search and OCR, and even export select cards to Apple Wallet.

Highlights
  • Private digital wallet
  • Secure document storage
  • Organize with folders and tags
  • Advanced search with text recognition
  • Apple Wallet export
  • Apple Watch app
  • Offline functionality
Features
Read full description

Cards+ is your private digital wallet for ID cards, cards, PDFs and important documents. Driver's license, health insurance card, passport, membership card, vehicle documents, notes or multi-page PDFs: everything stays organized in one place and is ready when you need it. Instead of searching through drawers, photo libraries or old messages, you store your most important documents in Cards+: with folders, tags, favorites, search, full-text recognition and secure access with PIN, Face ID or Touch ID. SECURE & PRIVACY-FIRST Cards+ is built for local, private use. Your cards and documents are stored and protected on your device and can be used without an account, forced cloud storage or tracking. - Protection with PIN, Face ID or Touch ID - Local storage for your cards, photos and PDFs - Encrypted backups and restore - No sign-in required - No tracking Apple Wallet export note: To create and sign a Wallet pass, only the Wallet data you choose is processed after your consent. SCAN, IMPORT, ORGANIZE Add cards and documents the way it works best for you: with the camera, photo import or PDF import. Cards+ helps you capture, crop and edit your card images. Folders, smart features, custom tags, favorites and filters keep even large collections clear. Find insurance cards, memberships, IDs, tickets, vehicle documents or family paperwork right when you need them. ADVANCED SEARCH & TEXT RECOGNITION Cards+ can recognize text from card images and documents and make it searchable. Search for names, numbers, addresses, phone numbers, notes, tags, folders or recognized text without opening every document one by one. APPLE WALLET EXPORT With Cards+ Pro, you can export selected cards as Apple Wallet passes. QR codes and barcodes can be detected and carried over into the Wallet pass. You decide which fields are visible, which are treated as sensitive and how the pass is displayed. APPLE WATCH With the Apple Watch app, important cards are available right on your wrist. Ideal for quick moments when your iPhone stays in your pocket. SMART FEATURES - Document scanning and photo import - PDF import and PDF viewing - Advanced full-text search - Automatic OCR field recognition for numbers, phone numbers, addresses and more - Custom folders, tags and favorites - Expiry dates and reminders - Export individual cards or entire folders - Encrypted backups - Apple Wallet export with QR/barcode support - Apple Watch app - Works offline PERFECT FOR - Travelers who need quick access to important documents - Families organizing multiple IDs, cards and documents - Professionals who want memberships, proofs and documents within reach - Anyone who wants a lighter wallet and still be prepared - Everyone who wants to store important copies securely, privately and neatly VERSIONS Free: - Up to 15 cards - Up to 3 folders - Up to 3 PDFs - Photo import, PDF import and search to try out Lite: - Up to 25 cards - Up to 3 folders - Up to 3 PDFs - Advanced filters, favorites, photo import and editing Pro: - Unlimited cards - Unlimited folders and PDFs - Apple Wallet export with QR/barcode support - Advanced full-text search and smart fields - Apple Watch app - Expiry reminders - Encrypted backups and restore - Advanced export features Available in English, German, French, Spanish, Italian and more. LEGAL NOTICE Digital copies are for convenience and do not replace original documents required by law. Continue carrying official original documents when legally required.

Screenshots

Measures Unit Converter4 screens
Cards plus4 screens

Verdict

The call

The clearest difference is price: Cards plus at Free against Measures Unit Converter's $1.99. Measures Unit Converter's advantage is rating (4.4 vs 4.0) and ratings volume (38 vs 1). On review sentiment, 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

Cards plus is free to download; Measures Unit Converter costs $1.99 up front. Measures Unit Converter sells 4 one-off in-app purchases and Cards plus sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Measures Unit Converter holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Measures Unit Converter has 38 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 91% of Measures Unit Converter's written reviews are positive against 86% of Cards plus's.

UpkeepUpdate frequency

Measures Unit Converter ships an update every 8 days, Cards plus weekly. Both last shipped on November 6, 2026.

Scorecard3 real differences · 7 level
Measures Unit Converter versus Cards plus: the parameters behind the verdict, then further details
ParameterMeasures Unit ConverterCards plus
Price$1.99Free — better
Rating4.4 (38 ratings) — better4.0 (1 ratings)
Positive reviews91.4% of reviews — better85.7% of reviews
Number of ratings38 — better1
Update frequencyEvery 8 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS18.0 — better18.4
Further details — not scored
Size18 MB24 MB
Age rating4+4+
DeveloperNeuwert Media GmbHOliver Lieven

Customer experience

Measures Unit Converter

All ratings30 ratings
Positive83.3%
Neutral3.3%
Negative13.3%
Written reviews833 reviews
Positive91.4%
Neutral2.3%
Negative6.4%

Cards plus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews14 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Bugs and requests

Measures Unit Converter

Reported bugs

2 issues
  • Crashes on launch with iOS 7.0.2
  • Inconsistent behavior when changing units in calculator

Requested features

4 requests
  • Add ability to swap conversion directions
  • Improve currency conversion to show tourist rates
  • Expand RF/frequency conversion options
  • Add support for more advanced unit types (e.g. wind chill, biblical currencies)

Cards plus

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Measures Unit Converter

One-time4
  • Coffee$1.99
  • Breakfast$4.99
  • Lunch$9.99
Show 1 more
  • Dinner$19.99
3 purchases

Cards plus

One-time3
  • Cards+ Lite$2.99
  • Cards+ Upgrade Lite to Pro$3.99
  • Cards+ Pro$6.99

Questions

Is Measures Unit Converter free?
Measures Unit Converter costs $1.99, and also offers in-app purchases.
Is Cards plus free?
Cards plus is free to download, with in-app purchases available.
Which has better reviews, Measures Unit Converter or Cards plus?
Measures Unit Converter is rated higher. Measures Unit Converter averages 4.4 out of 5 from 38 ratings, while Cards plus averages 4.0 from 1 ratings.
Do Measures Unit Converter or Cards plus have ads?
Neither Measures Unit Converter nor Cards plus shows ads.
Which is updated more often, Measures Unit Converter or Cards plus?
Measures Unit Converter ships an update every 8 days, and Cards plus weekly. Most recently, Measures Unit Converter was updated on November 6, 2026 and Cards plus on November 6, 2026.

Other comparisons