# Tachyon vs Defend by Tactacam

The clearest difference is review sentiment: Defend by Tactacam at 79% against Tachyon's 0%. Defend by Tactacam also leads on rating (4.8 vs 1.0) and ratings volume (9.9K 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.

Defend by Tactacam holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Defend by Tactacam has 9.9K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Tachyon's written reviews are positive against 79% of Defend by Tactacam's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Tachyon | Defend by Tactacam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/tachyon/id1477577495/reviews) | **[4.8 (9.9K ratings)](https://appshunter.io/ios/app/defend-by-tactacam/id6467141793/reviews)** |
| Number of ratings | 1 | **9.9K** |
| Positive reviews | 0.0% of reviews | **78.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free | Free |
| Size | 52 MB | 173 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chris Whitehouse](https://appshunter.io/developer/1481582836) | [Tactacam LLC](https://appshunter.io/developer/1139645242) |

## What reviewers say

### Tachyon

[App page](https://appshunter.io/ios/app/tachyon/id1477577495)

Control your camera remotely to start/stop recordings, play back footage in slow motion, and download videos directly to your iOS device. This app enhances your camera's functionality for seamless video capture and management.

**Highlights:** Remote recording control, Slow-motion playback, Video download to device, iOS device as remote, Compatible with Tachyon cameras

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

**In-app purchases:** none


### Defend by Tactacam

[App page](https://appshunter.io/ios/app/defend-by-tactacam/id6467141793)

Monitor security cameras remotely and receive photos and videos directly on your phone. Enjoy 24-hour surveillance in locations without Wi-Fi or electricity, with features like on-demand media requests and remote camera management.

**Highlights:** Remote camera control, Receive photos and videos, On-demand media requests, Manage multiple cameras, Share media and feeds, Monitor camera health

**Features:** Apple Wallet

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy setup
- 🔒 Reliable security
- 👍 User-friendly app
- 🚀 Dependable performance
- 🚀 Effective motion detection

**What reviewers complain about**

- 🔋 Battery life issues
- 📏 Limited field of view
- 🚫 No zoom adjustment

**Reported bugs**

- App crashes frequently
- Connectivity issues

**Requested features**

- Activity zones to reduce background motion
- Numbered alert count in the app


## Frequently asked questions

### Is Tachyon free?

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

### Is Defend by Tactacam free?

Defend by Tactacam is free to download, with no in-app purchases.

### Which has better reviews, Tachyon or Defend by Tactacam?

Defend by Tactacam is rated higher. Tachyon averages 1.0 out of 5 from 1 ratings, while Defend by Tactacam averages 4.8 from 9.9K ratings.

### Do Tachyon or Defend by Tactacam have ads?

Neither Tachyon nor Defend by Tactacam shows ads.

### Which is updated more often, Tachyon or Defend by Tactacam?

Tachyon ships an update every 6 weeks, and Defend by Tactacam every 6 weeks. Most recently, Tachyon was updated on November 3, 2026 and Defend by Tactacam on November 7, 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.*