# RCA Security vs Merkury Smart

The clearest difference is rating: Merkury Smart at 4.7 against RCA Security's 1.7. Merkury Smart also leads on ratings volume (38K vs 188) and update cadence (every 6 weeks vs every 5 months). RCA Security's advantage is iOS requirement (9.0 vs 15.5). 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.

Merkury Smart holds the better App Store score, 4.7 against 1.7. That said, the two scores are not equally well evidenced: Merkury Smart has 38K ratings behind it against 188, so its average is the more settled of the two. Written reviews point the same way: 8% of RCA Security's written reviews are positive against 23% of Merkury Smart's.

RCA Security ships an update every 5 months, Merkury Smart every 6 weeks. The most recent releases landed on October 14, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | RCA Security | Merkury Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (188 ratings)](https://appshunter.io/ios/app/rca-security/id1277406795/reviews) | **[4.7 (38K ratings)](https://appshunter.io/ios/app/merkury-smart/id6444498218/reviews)** |
| Number of ratings | 188 | **38K** |
| Positive reviews | 8.1% of reviews | **23.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Best chart rank | — | **#175** |
| Size | 136 MB | 105 MB |
| Requires iOS | **9.0** | 15.5 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Voxx international Corp](https://appshunter.io/developer/590474280) | [Merkury Innovations LLC](https://appshunter.io/developer/1177386275) |

## What reviewers say

### RCA Security

[App page](https://appshunter.io/ios/app/rca-security/id1277406795)

Easily set up and manage your RCA security cameras, including doorbell cameras. View live video remotely and securely from your smartphone, with no cloud storage fees or hidden costs. Configure motion detection, sound alerts, and auto recording schedules.

**Highlights:** Remote camera viewing, Doorbell camera setup, Motion and sound alerts, Auto recording scheduling, Manual recording to smartphone, Secure live streaming

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent camera quality
- 👍 Easy to install
- 🔒 Secure with no monthly fees

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Recurring login issues
- 🐛 Notifications and video playback not working
- 💡 Needs iPad-optimized version
- 🐛 Sensitivity settings not working properly

**Reported bugs**

- App crashes when trying to access cameras
- Unable to view recorded videos
- Notifications not working as expected
- Sensitivity settings not functioning correctly

**Requested features**

- Update app to fix bugs and crashes
- Add option to remain logged in
- Improve video playback and notification reliability
- Provide better support and updates


### Merkury Smart

[App page](https://appshunter.io/ios/app/merkury-smart/id6444498218)

**Currently charting:** #175 Top Free · Photo & Video (US App Store)

Control and monitor a range of smart home devices, including cameras, lighting, and plugs. View live HD streams, review recorded footage, and manage device settings remotely for enhanced home security and convenience.

**Highlights:** Live HD camera streaming, Motion detection alerts, Record and review video clips, Control smart plugs and outlets, Manage smart LED lighting, Remote device control

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

**In-app purchases:** none

**What reviewers like**

- 👍 Good value
- 👍 Able to monitor pets
- 👍 Clear video
- 👍 Simple to use
- 👍 Nice design

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Unreliable motion detection
- 🐛 Laggy performance
- 🔒 Difficult to cancel subscription
- 🐛 Buggy app

**Reported bugs**

- App crashes frequently
- Issues with password reset
- Trouble connecting cameras
- SD card not recognized

**Requested features**

- Add option to invite family members
- Improve motion detection and notifications
- Allow saving of photos and recordings
- Improve WiFi connectivity
- Add more customization options


## Frequently asked questions

### Is RCA Security free?

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

### Is Merkury Smart free?

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

### Which has better reviews, RCA Security or Merkury Smart?

Merkury Smart is rated higher. RCA Security averages 1.7 out of 5 from 188 ratings, while Merkury Smart averages 4.7 from 38K ratings.

### Do RCA Security or Merkury Smart have ads?

Neither RCA Security nor Merkury Smart shows ads.

### Which is updated more often, RCA Security or Merkury Smart?

RCA Security ships an update every 5 months, and Merkury Smart every 6 weeks. Most recently, RCA Security was updated on October 14, 2026 and Merkury Smart on October 22, 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.*