iOS and Android app
CalcDuo
Use calculators, comparisons and converters on iPhone, iPad and Android devices, then return to favorites and recent results quickly.
- iPhone, iPad and Android
- 7 languages
- Free to download
Choose the store for your device.
Home
Available across devices
CalcDuo apps
Get the CalcDuo mobile app and CalcDuo browser extensions from one place.
Supported browsers
Browser extensions
Access tools powered by the same CalcDuo APIs without leaving the tab you are working in.
4 extensions shown
Quick Calculator
Version 0.3.0
Run tax, percentage, discount, increase, loan, salary, date and health calculations without leaving the browser.
- 12 quick calculation tools
- Favorites, history and context-menu commands
PDF & Image Tools
Version 0.3.0
Compress images and PDFs, merge or extract PDF pages, and create PDFs from images in one browser tool.
- Real server-side progress
- Batch files and protected downloads
File Converter
Version 0.3.0
Find and run verified conversions for images, documents, PDFs, audio, video, archives and other files.
- Searchable format catalog
- Batch conversion, previews and ZIP output
Content Authenticity
Version 0.3.0
Inspect C2PA Content Credentials, metadata, file-integrity signals and declared AI use in images.
- C2PA and Content Credentials validation
- EXIF, IPTC, XMP and file-integrity report