# Prefix App vs REX CRM

The clearest difference is review sentiment: REX CRM at 100% against Prefix App's 48%. REX CRM also leads on update cadence (every 3 days vs fortnightly). Prefix App's advantage is iOS requirement (7.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Prefix App ships an update fortnightly, REX CRM every 3 days. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Prefix App | REX CRM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rex-crm/id1460581956/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 48.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | Free | Free |
| Size | 21 MB | 21 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alain Lima](https://appshunter.io/developer/789421888) | [Waseem Ashfaq](https://appshunter.io/developer/1007296183) |

## What reviewers say

### Prefix App

[App page](https://appshunter.io/ios/app/prefix-app/id813922085)

Easily add a prefix to phone numbers before dialing without altering your contacts. Ideal for managing business phone lines or specific calling requirements directly from your address book or keypad.

**Highlights:** Full address book access, Customizable contacts, Recent calls list, Customizable prefix and suffix, Direct dialing via keypad, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### REX CRM

[App page](https://appshunter.io/ios/app/rex-crm/id1460581956)

Manage all your real estate client information in one place. This app helps professionals track leads, listings, leasing, deals, and commissions efficiently.

**Highlights:** Unified contact management, Leads management, Listings tracking, Leasing management, Deals tracking, Commissions calculation

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

**In-app purchases:** none


## Frequently asked questions

### Is Prefix App free?

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

### Is REX CRM free?

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

### Do Prefix App or REX CRM have ads?

Neither Prefix App nor REX CRM shows ads.

### Which is updated more often, Prefix App or REX CRM?

Prefix App ships an update fortnightly, and REX CRM every 3 days. Most recently, Prefix App was updated on October 14, 2026 and REX CRM on October 16, 2026.

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