# RingRx vs Bitdefender GravityZone MTD

The clearest difference is rating: Bitdefender GravityZone MTD at 4.0 against RingRx's 2.6. Bitdefender GravityZone MTD also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). RingRx's advantage is ratings volume (58 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Bitdefender GravityZone MTD holds the better App Store score, 4.0 against 2.6. That said, the two scores are not equally well evidenced: RingRx has 58 ratings behind it against 1, so its average is the more settled of the two.

RingRx ships an update every 4 months, Bitdefender GravityZone MTD every 5 months. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | RingRx | Bitdefender GravityZone MTD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (58 ratings)](https://appshunter.io/ios/app/ringrx/id1289078819/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bitdefender-gravityzone-mtd/id6445922127/reviews)** |
| Number of ratings | **58** | 1 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Monetization | Free | Free |
| Size | 114 MB | 70 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Douglas Parent](https://appshunter.io/developer/1289078818) | [Zimperium](https://appshunter.io/developer/1030924458) |

## What reviewers say

### RingRx

[App page](https://appshunter.io/ios/app/ringrx/id1289078819)

This app extends your office phone system to your mobile device. Make and receive calls, manage voicemails, and transfer callers as if you were at your desk. It enables seamless extension-to-extension calling on the go.

**Highlights:** Mobile office phone system, Make and receive calls, Check voicemail, Transfer callers, Extension to extension calls

**In-app purchases:** none


### Bitdefender GravityZone MTD

[App page](https://appshunter.io/ios/app/bitdefender-gravityzone-mtd/id6445922127)

This mobile security solution defends corporate and personal devices against phishing, zero-day threats, and advanced cyberattacks. It offers robust protection for applications, web traffic, and the device itself, while strictly safeguarding employee privacy and personal data.

**Highlights:** Mobile threat defense, Phishing protection, Zero-day threat detection, Application security, Web traffic protection, Privacy safeguarding

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RingRx free?

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

### Is Bitdefender GravityZone MTD free?

Bitdefender GravityZone MTD is free to download, with no in-app purchases.

### Which has better reviews, RingRx or Bitdefender GravityZone MTD?

Bitdefender GravityZone MTD is rated higher. RingRx averages 2.6 out of 5 from 58 ratings, while Bitdefender GravityZone MTD averages 4.0 from 1 ratings.

### Do RingRx or Bitdefender GravityZone MTD have ads?

Neither RingRx nor Bitdefender GravityZone MTD shows ads.

### Which is updated more often, RingRx or Bitdefender GravityZone MTD?

RingRx ships an update every 4 months, and Bitdefender GravityZone MTD every 5 months. Most recently, RingRx was updated on October 12, 2026 and Bitdefender GravityZone MTD on September 28, 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.*