# REDX CallerID vs SparkRM

The clearest difference is rating: SparkRM at 5.0 against REDX CallerID's 3.5. SparkRM also leads on review sentiment (100% vs 60%) and update cadence (every 2 days vs every 5 weeks). REDX CallerID's advantage is in-app purchases (none vs 4). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. SparkRM sells 4 in-app purchases, starting at $19.99 per month. REDX CallerID asks for nothing beyond the download.

SparkRM holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews point the same way: 60% of REDX CallerID's written reviews are positive against 100% of SparkRM's.

REDX CallerID ships an update every 5 weeks, SparkRM every 2 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | REDX CallerID | SparkRM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/redx-callerid/id6742926557/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/sparkrm/id6767429176/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | **Free** | Freemium |
| Size | 6 MB | 68 MB |
| Requires iOS | 17.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [REDX](https://appshunter.io/developer/1584195055) | [Michael Baldwin](https://appshunter.io/developer/1809061494) |

## What reviewers say

### REDX CallerID

[App page](https://appshunter.io/ios/app/redx-callerid/id6742926557)

This app displays caller labels for Vortex lead callbacks, syncing lead data with your phone system. Once opened, it runs in the background to show lead names when they call.

**Highlights:** Caller label for Vortex lead callbacks, Background sync, Lead name display, Vortex lead data sync

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

**In-app purchases:** none


### SparkRM

[App page](https://appshunter.io/ios/app/sparkrm/id6767429176)

This AI assistant helps you remember important details about your contacts and identify thoughtful moments to follow up. It organizes information, provides timely reminders, and can even draft personalized messages for you to review and send.

**Highlights:** Capture relationship context via chat or voice, Import contacts from phone or CSV, Remember notes, dates, and interactions, Focused 'Today' list with reminders, Drafted check-in messages with AI, Review and edit all drafted messages, Undo recent AI changes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark Pro | $19.99 | per month |
| Spark Power | $49.99 | per month |
| Spark Pro (Annual) | $179.99 | per year |
| Spark Power (Annual) | $449.99 | per year |


## Frequently asked questions

### Is REDX CallerID free?

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

### Is SparkRM free?

SparkRM is free to download, with in-app purchases available.

### Which has better reviews, REDX CallerID or SparkRM?

SparkRM is rated higher. REDX CallerID averages 3.5 out of 5 from 8 ratings, while SparkRM averages 5.0 from 5 ratings.

### Do REDX CallerID or SparkRM have ads?

Neither REDX CallerID nor SparkRM shows ads.

### Which is updated more often, REDX CallerID or SparkRM?

REDX CallerID ships an update every 5 weeks, and SparkRM every 2 days. Most recently, REDX CallerID was updated on October 21, 2026 and SparkRM on October 25, 2026.

---

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