PrefixPlus - add the prefix
yasuhiko nagahara Utilities iPhoneiPadiPod touch
PrefixPlus - add the prefix is a free Utilities app for iPhone and iPad by yasuhiko nagahara. Rated 4.7/5 from 1,097 ratings. Requires iOS 15.6.
- Rating
- 4.7
- 1K ratings
- Price
- Free
- on the App Store
- Size
- 8 MB
- Age 4+
- Updated
- Dec 23
- 2025 · v26.0.1
Screenshots
About PrefixPlus - add the prefix
PrefixPlus allows you to add the prefix number to phone numbers in Contacts at once. Phone numbers with the prefix number will not be replaced but added to contacts. For example, if you set the number "+81" and the label "Call(JP)", contacts will be updated as follows. [Before update] Home: 03-1234-5678 Mobile: 090-1234-5678 [After update] Home: 03-1234-5678 Mobile: 090-1234-5678 Call(JP) Home: +81-3-1234-5678 Call(JP) Mobile: +81-90-1234-5678 (Caution) Be sure to back up contacts as security against accidents. For example, if you back up to iCloud, you can restore contacts at some point in the past. Please note that you can add prefix numbers to contacts synchronized with local, iCloud, Gmail only.
Ratings & reviews
4.7
1K ratings
What’s new
Version 26.0.1 · Updated December 23, 2025
・Fixed an issue where deleting a prefix setting did not delete the corresponding contact.
App privacy
The developer, yasuhiko nagahara, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Performance Data
Used for: Third-Party Advertising, Analytics
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Third-Party Advertising
Alternatives to PrefixPlus - add the prefix
Looking for apps like PrefixPlus - add the prefix? Here are 6 similar apps on the App Store. The highest rated is Calculator Keyboard - Calku (4.7/5), and all 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| PrefixPlus - add the prefix | 4.7 / 5 (1,097 ratings) | Free | December 23, 2025 | |
| Calculator Keyboard - Calku | 4.7 / 5 (493) | Free | Jul 26, 2026 | Compare |
| Trip Reader (NFC) | 4.6 / 5 (521) | Free | May 14, 2025 | Compare |
| Contacts Prefix Fixer | 1.0 / 5 (1) | Free | Nov 11, 2024 | Compare |
| 5BB Connect | 2.6 / 5 (16) | Free | Oct 9, 2026 | Compare |
| MPT4U | 4.2 / 5 (243) | Free | Sep 29, 2026 | Compare |
| TTKeyboard | 4.3 / 5 (1,862) | Free | Oct 22, 2026 | Compare |