Export & Backup Contacts vs Electrical Calculation Tools

Back up your iPhone contacts before you switch phones, reset your device or clean up your address book. Save them as a vCard (VCF) file, or create a CSV spreadsheet with Pro that is compatible with Excel, Numbers and Google Sheets. BACK UP AND SHARE • Export the contacts you allow the app to access as a VCF (vCard) file. • Save or share the file with the iOS share sheet, including Files, AirDrop, Mail and other compatible apps. • Keep a local history with the date, device and number of contacts in each backup. • Search and review the contacts saved in a backup. CSV YOUR WAY • Choose the contacts and columns to include: name, phone numbers, emails, company, addresses, birthday and URLs. • Preview the first rows for free before you export. • Save column templates to reuse your preferred layout; choose contacts each time. • Exporting the CSV file requires Pro. RESTORE FROM YOUR HISTORY (PRO) Add contacts to your address book from a backup in this app's local history. Restoring adds contacts; it does not delete or replace the contacts already on your iPhone. REVIEW POSSIBLE DUPLICATES (PRO) Find and review contacts that may be duplicates. The app lists them for you to check; it does not merge them automatically. FREE VS PRO Free: up to 70 contacts per file, 3 exports per day, vCard export, CSV preview and your 3 most recent backups. Pro: all accessible contacts in every file, unlimited exports, CSV export, full backup history, restore from history and duplicate review. PRO IS ONE PAYMENT, NO SUBSCRIPTION Pro is a one-time lifetime purchase. Use Restore purchases with the same Apple Account to get Pro back on a new device or after reinstalling the app. KEEP A COPY OUTSIDE THE APP Backup history is stored only on this device and is removed if you delete the app. Before deleting the app or changing phones, save your VCF file to Files or another place you trust. Importing backup files from outside the app and automatically merging duplicates are not included. YOUR PRIVACY Your contacts are processed on your device and are not uploaded to our servers. You choose where to share exported files. The app uses third-party services for purchases, analytics and crash reporting; see our Privacy Policy for details.

Mobile Electrician Calculator is a powerful and easy-to-use tool designed for electricians, electrical engineers, students, and anyone working with electrical systems. This app brings essential electrical formulas and calculations right to your mobile device—making work faster, more accurate, and more convenient. Whether you're troubleshooting, designing circuits, or estimating power usage, the app offers precise calculators to save time and reduce errors. Key Tools Included: Ohm’s Law Calculator Quickly calculate voltage, current, resistance, or power with simple input fields. LC Resonance Calculator Find resonant frequency, inductance, and capacitance for AC circuits with accuracy. Delta–Y (Wye) Transformer Conversion Convert between Delta and Wye configurations in seconds—perfect for three-phase systems. Electrical Energy Calculator Estimate energy usage and cost of appliances for better planning and budgeting. Current Density Calculator Calculate current per unit area to select the right conductor size and prevent overheating. Designed for speed, accuracy, and convenience, Mobile Electrician Calculator is an essential tool for fieldwork, classroom learning, and electrical design. With its user-friendly interface and multiple built-in calculators, it simplifies complex math and helps users complete jobs more efficiently.