# Odin Inventory vs MTech Sonar

The clearest difference is iOS requirement: MTech Sonar at 15.0 against Odin Inventory's 17.6. 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.

Odin Inventory ships an update every 2 months, MTech Sonar monthly. The most recent releases landed on September 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Odin Inventory | MTech Sonar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.4 (14 ratings)](https://appshunter.io/ios/app/mtech-sonar/id1376913731/reviews)** |
| Number of ratings | — | **14** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free |
| Size | 6 MB | 104 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Odin, Inc.](https://appshunter.io/developer/505520683) | [M-TECH SYSTEMS USA, INC.](https://appshunter.io/developer/1376913580) |

## What reviewers say

### Odin Inventory

[App page](https://appshunter.io/ios/app/odin-inventory/id603155090)

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

**In-app purchases:** none


### MTech Sonar

[App page](https://appshunter.io/ios/app/mtech-sonar/id1376913731)

This app automates barn data collection for real-time monitoring of environmental conditions and bird health. It also tracks daily animal performance against established standards.

**Highlights:** Automated barn data collection, Real-time environment monitoring, Minute-by-minute bird health tracking, Daily animal performance trending, Performance comparison to standards

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

**In-app purchases:** none


## Frequently asked questions

### Is Odin Inventory free?

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

### Is MTech Sonar free?

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

### Do Odin Inventory or MTech Sonar have ads?

Neither Odin Inventory nor MTech Sonar shows ads.

### Which is updated more often, Odin Inventory or MTech Sonar?

Odin Inventory ships an update every 2 months, and MTech Sonar monthly. Most recently, Odin Inventory was updated on September 17, 2026 and MTech Sonar on September 16, 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.*