About
Automatically add dial codes or modify phone numbers before making calls. Ideal for office PBX systems, international dialing, or any situation requiring number reformatting. Sync rules across devices via iCloud.
What's New in Prefix Dialer Pro
2.1.0
May 8, 2026
The Dial tab is now a full-screen keypad — type a number with one hand, see the dial preview live, and tap call. • New dialer pad: 0–9, star, hash, long-press 0 for "+" • Backspace tap to delete; long-press to clear • Recents moved to a top-bar button — out of the way until you need it • Smoother haptics on every tap
MoreIn-App Purchases
$0.99
Additional Set of 5 Prefixes and 5 Replacers
You will have a total 11 prefixes and 11 replacers
Developer apps
FAQ
What is Prefix Dialer Pro?
Prefix Dialer Pro automatically adds dial codes and transforms phone numbers before you make a call. It's useful for office PBX systems, international dialing, or any setup where numbers need prefixes.
How does Prefix Dialer Pro work?
You set up prefix and replacer rules within the app. When you dial a number from contacts, clipboard, or manually, these rules are applied automatically to format the number before the call is placed.
Can I use Prefix Dialer Pro for international calls?
Yes, Prefix Dialer Pro is great for international callers. You can set up rules to replace the leading '+' with '00' or a specific country code, ensuring your calls connect correctly.
What are the limitations of the free version of Prefix Dialer Pro?
The free version of Prefix Dialer Pro allows up to 1 prefix and 1 replacer rule. To unlock unlimited rules and remove ads, you can upgrade to the Pro version.
How do I upgrade to Prefix Dialer Pro?
Prefix Dialer Pro can be upgraded to the Pro version with a single one-time purchase. This unlocks unlimited prefixes and replacers and removes all advertisements from the app.
Does Prefix Dialer Pro have ads?
The free version of Prefix Dialer Pro does not contain advertisements. The 'Go Pro' option removes all ads, indicating the free version is ad-free.
What devices is Prefix Dialer Pro available on?
Prefix Dialer Pro is currently supported on iPhones. It was released on April 23, 2015, and the latest version is 2.1.0, last updated on May 8, 2026.
What is the age rating for Prefix Dialer Pro?
Prefix Dialer Pro has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.