# ITR vs VIVOSUN

The clearest difference is rating: VIVOSUN at 4.7 against ITR's 3.5. VIVOSUN also leads on ratings volume (8.7K vs 2) and update cadence (fortnightly vs every 2 months). 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.

VIVOSUN holds the better App Store score, 4.7 against 3.5. That said, the two scores are not equally well evidenced: VIVOSUN has 8.7K ratings behind it against 2, so its average is the more settled of the two.

ITR ships an update every 2 months, VIVOSUN fortnightly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | ITR | VIVOSUN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (2 ratings)](https://appshunter.io/ios/app/itr-oasis/id1438468041/reviews) | **[4.7 (8.7K ratings)](https://appshunter.io/ios/app/vivosun/id1600813756/reviews)** |
| Number of ratings | 2 | **8.7K** |
| Positive reviews | — | 62.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 20 MB | 228 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [International Thermal Research Ltd.](https://appshunter.io/developer/1496252759) | [VIVOSUN INC](https://appshunter.io/developer/1600813758) |

## What reviewers say

### ITR

[App page](https://appshunter.io/ios/app/itr-oasis/id1438468041)

Remotely monitor and control your home's heating elements, including burners, electric elements, and engine preheat pumps. Manage your home's climate and ensure optimal performance from afar.

**Highlights:** Monitor heating elements, Control burners remotely, Manage electric elements, Operate engine preheat pump, Remote On/Off functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### VIVOSUN

[App page](https://appshunter.io/ios/app/vivosun/id1600813756)

Automate and simplify plant care with this app, offering real-time monitoring, manual controls, and automated grow recipes. Track climate, log growth with diaries, and receive alerts for optimal plant health. Connect with other growers and shop securely for supplies.

**Highlights:** Real-time environmental monitoring, Manual control of grow devices, Automated grow recipes, Growth logging and reminders, In-app shopping with secure checkout, Community sharing and insights

**Features:** macOS Compatibility, Apple Wallet, SharePlay

**In-app purchases:** none

**What reviewers like**

- 🚀 Seamless connectivity
- 👍 Intuitive app interface
- 🔍 Comprehensive environment monitoring
- 💡 Helpful journal/logging feature
- 🛒 Convenient in-app purchasing

**What reviewers complain about**

- 🐛 Connectivity issues and disconnects
- 🔧 Confusing configuration and automation settings
- 🕰️ Inconsistent sync between app and hardware
- 🔍 Lack of advanced customization options
- 🔌 Compatibility issues with newer devices

**Reported bugs**

- Firmware update failures
- Inconsistent data display and syncing
- Recipes not saving correctly
- In-app purchasing problems

**Requested features**

- Add VPD control and automation
- Improve recipe/schedule management
- Implement a dashboard widget for quick monitoring
- Allow moving plants between gardens
- Enhance dark mode and UI customization


## Frequently asked questions

### Is ITR free?

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

### Is VIVOSUN free?

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

### Which has better reviews, ITR or VIVOSUN?

VIVOSUN is rated higher. ITR averages 3.5 out of 5 from 2 ratings, while VIVOSUN averages 4.7 from 8.7K ratings.

### Do ITR or VIVOSUN have ads?

Neither ITR nor VIVOSUN shows ads.

### Which is updated more often, ITR or VIVOSUN?

ITR ships an update every 2 months, and VIVOSUN fortnightly. Most recently, ITR was updated on November 2, 2026 and VIVOSUN on November 9, 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.*