# Prefix Dialer Pro vs ContactFixer

The clearest difference is in-app purchases: ContactFixer at none against Prefix Dialer Pro's 2. ContactFixer also leads on update cadence (every 2 days vs every 8 months). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Prefix Dialer Pro sells 2 one-off in-app purchases. ContactFixer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Prefix Dialer Pro against 5.0 for ContactFixer. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Prefix Dialer Pro ships an update every 8 months, ContactFixer every 2 days. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Prefix Dialer Pro | ContactFixer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/prefix-dialer-pro/id982956788/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/contactfixer/id6761673183/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | Freemium | **Free** |
| Size | 4 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [SOHO S & N](https://appshunter.io/developer/299975451) | [Joe Wilson](https://appshunter.io/developer/1885259449) |

## What reviewers say

### Prefix Dialer Pro

[App page](https://appshunter.io/ios/app/prefix-dialer-pro/id982956788)

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.

**Highlights:** Automatic prefix and replacer rules, Contact integration, Clipboard detection, Manual number entry, Dial history, iCloud sync, Shake to open contacts

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Additional Set of 5 Prefixes and 5 Replacers | $0.99 | one-time |
| Set of 5 prefixes and 5 replacers | $0.99 | one-time |


### ContactFixer

[App page](https://appshunter.io/ios/app/contactfixer/id6761673183)

This app automatically formats your US phone numbers into a consistent E.164 format, ensuring better compatibility with messaging and calling services. It scans your contacts, provides a preview of changes, and applies them instantly without needing an internet connection.

**Highlights:** Automatic US phone number formatting, E.164 format conversion, Preview changes before applying, Instant contact updates, Offline functionality, Privacy-focused, no data collection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Prefix Dialer Pro free?

Prefix Dialer Pro is free to download, with in-app purchases available.

### Is ContactFixer free?

ContactFixer is free to download, with no in-app purchases.

### Which has better reviews, Prefix Dialer Pro or ContactFixer?

Prefix Dialer Pro and ContactFixer are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Prefix Dialer Pro or ContactFixer have ads?

Neither Prefix Dialer Pro nor ContactFixer shows ads.

### Which is updated more often, Prefix Dialer Pro or ContactFixer?

Prefix Dialer Pro ships an update every 8 months, and ContactFixer every 2 days. Most recently, Prefix Dialer Pro was updated on November 13, 2026 and ContactFixer on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*