Prefix App vs REX CRM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prefix App
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.
- Full address book access
- Customizable contacts
- Recent calls list
- Customizable prefix and suffix
- Direct dialing via keypad
- Intuitive interface
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Prefix App is the App that let you put a prefix before the phone number without editing your address book. Very useful if you have a business phone. Features: - Full address book - Customizable address book - Recent calls - Customizable prefix; - Customizable suffix; - Direct call with phone keypad; - Simple, intuitive and smart interface;
REX CRM
Manage all your real estate client information in one place. This app helps professionals track leads, listings, leasing, deals, and commissions efficiently.
- Unified contact management
- Leads management
- Listings tracking
- Leasing management
- Deals tracking
- Commissions calculation
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Real Estate CRM Software is a unified contact management system that helps the real estate professionals keep all the clients' information in one centralized location. Featuring; Leads management, Listings, Leasing, Deals, Commissions and much more.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Prefix App | REX CRM |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 48.3% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 21 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Alain Lima | Waseem Ashfaq |
Customer experience
Prefix App
REX CRM
In-app purchases
Prefix App
No in-app purchases
REX CRM
No in-app purchases
