Jokko9
Update contacts to 9 digits
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
The Gambia is changing from 7-digit to 9-digit phone numbers. Every number saved in your phone needs the new operator prefix added — and if you have hundreds of contacts, doing that by hand is slow and easy to get wrong.
Jokko9 does it for you. It scans your saved contacts, works out which operator each number belongs to, and shows you exactly what it will change before anything happens. You approve, and it updates them all at once.
HOW IT WORKS
• Africell numbers get the 87 prefix
• QCell numbers get the 83 prefix
• Comium numbers get the 86 prefix
• Gamcel numbers stay 7 digits, as PURA specified
• Anything unrecognised is flagged for you to check yourself
COMPLETELY PRIVATE
Jokko9 works entirely offline. There is no account, no sign-up, and no internet connection — your contacts never leave your phone. Nothing is uploaded, and nothing is tracked.
YOU STAY IN CONTROL
Review every change before it is applied, and keep a record of the original numbers.
Built for Gambians, by Computer Science students at the University of The Gambia, following the official PURA migration rules. Published with the support of TeranGO.
Ratings & Reviews
This update makes migrating your contacts faster and more reliable.
• Contact updates are noticeably faster, and large contact lists are handled more reliably on iPhone
• Search added to the Migrate and Restore screens, so you can find a specific contact quickly
• Swipe to move through your contacts
• Restore is more robust — putting your original numbers back is safer than before
• New launch screen
• Fixes and improvements on the migration screen
Jokko9 still works completely offline. Your contacts never leave your phone.
The developer, Muhammed Darboe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Muhammed Darboe
- Size
- 31.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 TeranGO