# ATN Obsidian 4 vs zenith Smart

The clearest difference is rating: zenith Smart at 3.0 against ATN Obsidian 4's 2.0. zenith Smart also leads on review sentiment (50% vs 16%) and update cadence (every 2 weeks vs every 3 months). ATN Obsidian 4's advantage is ratings volume (234 vs 4). 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.

zenith Smart holds the better App Store score, 3.0 against 2.0. That said, the two scores are not equally well evidenced: ATN Obsidian 4 has 234 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 16% of ATN Obsidian 4's written reviews are positive against 50% of zenith Smart's.

ATN Obsidian 4 ships an update every 3 months, zenith Smart every 2 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | ATN Obsidian 4 | zenith Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (234 ratings)](https://appshunter.io/ios/app/atn-obsidian-4/id1337731256/reviews) | **[3.0 (4 ratings)](https://appshunter.io/ios/app/zenith-smart/id1532707343/reviews)** |
| Number of ratings | **234** | 4 |
| Positive reviews | 16.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 85 MB | 4 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ATN](https://appshunter.io/developer/789970891) | [Shenzhen Hongruixin Electronic Co.,Ltd](https://appshunter.io/developer/1532694202) |

## What reviewers say

### ATN Obsidian 4

[App page](https://appshunter.io/ios/app/atn-obsidian-4/id1337731256)

Connect your smartphone or tablet to compatible ATN smart scopes via WiFi. Stream live video of your hunt, adjust device settings, and review recorded images and videos. Unlock the full capabilities of your ATN optics.

**Highlights:** Live video streaming, Device settings adjustment, Review stored media, WiFi connectivity, Enhances ATN optic experience

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast live streaming
- 👍 Easy scope configuration
- 🔍 Useful viewfinder feature

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🐛 App crashes and freezes
- 🐛 Unreliable video/photo gallery
- 🐛 Scope locking up when using app

**Reported bugs**

- App unable to discover scope
- Live view not working as expected
- Scope firmware updates causing issues

**Requested features**

- Add photo/video gallery to view media
- Improve app stability and reliability
- Allow profile editing directly on scope


### zenith Smart

[App page](https://appshunter.io/ios/app/zenith-smart/id1532707343)

Control smart heating and massage products remotely via Bluetooth. Adjust temperature, set timers, and manage massage functions with a user-friendly interface. Simplifies operation compared to traditional control switches.

**Highlights:** Bluetooth connectivity, Remote temperature regulation, Scheduled shutdown timers, Massage function control, Simplified operation, Low-power communication

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

**In-app purchases:** none


## Frequently asked questions

### Is ATN Obsidian 4 free?

ATN Obsidian 4 is free to download, with no in-app purchases.

### Is zenith Smart free?

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

### Which has better reviews, ATN Obsidian 4 or zenith Smart?

zenith Smart is rated higher. ATN Obsidian 4 averages 2.0 out of 5 from 234 ratings, while zenith Smart averages 3.0 from 4 ratings.

### Do ATN Obsidian 4 or zenith Smart have ads?

Neither ATN Obsidian 4 nor zenith Smart shows ads.

### Which is updated more often, ATN Obsidian 4 or zenith Smart?

ATN Obsidian 4 ships an update every 3 months, and zenith Smart every 2 weeks. Most recently, ATN Obsidian 4 was updated on October 24, 2026 and zenith Smart on October 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.*