# Defrost Pro vs ObsidianIOT

The clearest difference is iOS requirement: Defrost Pro at 10.0 against ObsidianIOT's 17.5. 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.

Defrost Pro ships an update every 2 months, ObsidianIOT every 6 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Defrost Pro | ObsidianIOT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/obsidianiot/id6608989458/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 19 MB | 7 MB |
| Requires iOS | **10.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Enie Weiss](https://appshunter.io/developer/969788379) | [Andre Troncoso](https://appshunter.io/developer/1761218015) |

## What reviewers say

### Defrost Pro

[App page](https://appshunter.io/ios/app/defrost-pro/id1352993174)

**Features:** macOS Compatibility

**In-app purchases:** none


### ObsidianIOT

[App page](https://appshunter.io/ios/app/obsidianiot/id6608989458)

This application optimizes solar energy systems, including trackers, battery storage, and street lights. It uses real-time data and predictive analytics for efficient energy management and remote monitoring.

**Highlights:** Real-time solar tracker adjustment, Intelligent solar battery management, Adaptive solar street lighting, Predictive analytics for energy optimization, Remote monitoring and control, Scalable architecture for various installations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Defrost Pro free?

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

### Is ObsidianIOT free?

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

### Do Defrost Pro or ObsidianIOT have ads?

Neither Defrost Pro nor ObsidianIOT shows ads.

### Which is updated more often, Defrost Pro or ObsidianIOT?

Defrost Pro ships an update every 2 months, and ObsidianIOT every 6 weeks. Most recently, Defrost Pro was updated on October 26, 2026 and ObsidianIOT on October 24, 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.*