# Nano Inventory vs SOS Inventory Software

The clearest difference is price: SOS Inventory Software at Free against Nano Inventory's $2.99. SOS Inventory Software also leads on rating (4.2 vs 3.5) and ratings volume (82 vs 8). Nano Inventory's advantage is review sentiment (66% vs 22%) and iOS requirement (12.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

SOS Inventory Software is free to download; Nano Inventory costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SOS Inventory Software holds the better App Store score, 4.2 against 3.5. That said, the two scores are not equally well evidenced: SOS Inventory Software has 82 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 66% of Nano Inventory's written reviews are positive against 22% of SOS Inventory Software's, so the app with the better star average is not the one people write more warmly about.

Nano Inventory ships an update every 3 months, SOS Inventory Software every 6 weeks. The most recent releases landed on September 21, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Nano Inventory | SOS Inventory Software |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.5 (8 ratings)](https://appshunter.io/ios/app/nano-inventory/id812959928/reviews) | **[4.2 (82 ratings)](https://appshunter.io/ios/app/sos-inventory-software/id1399703758/reviews)** |
| Number of ratings | 8 | **82** |
| Positive reviews | **65.6% of reviews** | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Paid | **Free** |
| Size | 19 MB | 17 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erziman Asaliyev](https://appshunter.io/developer/650527324) | [Saddle Oak Software](https://appshunter.io/developer/1399703757) |

## What reviewers say

### Nano Inventory

[App page](https://appshunter.io/ios/app/nano-inventory/id812959928)

Manage your business inventory and sales directly from your mobile device. Track stock, product details, income, and expenses without an internet connection. Supports multiple locations and users with role-based access.

**Highlights:** Stock quantity tracking, Product catalog management, Income and expense tracking, Offline functionality, Multi-location inventory, Barcode and QR code scanning, Data backup and reporting

**Features:** Vision Pro support

**In-app purchases:** none


### SOS Inventory Software

[App page](https://appshunter.io/ios/app/sos-inventory-software/id1399703758)

Manage inventory, manufacturing, and sales with this comprehensive business control program. It offers detailed tracking of stock, orders, and customers, with unique mobile features for on-the-go counts and pricing checks. Designed for small businesses, it provides powerful functionality at a cost-effective price.

**Highlights:** Inventory tracking, Manufacturing management, Sales order processing, Mobile barcode scanning, Physical inventory counts, QBO integration, Reporting options

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

**In-app purchases:** none


## Frequently asked questions

### Is Nano Inventory free?

Nano Inventory costs $2.99, with no in-app purchases.

### Is SOS Inventory Software free?

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

### Which has better reviews, Nano Inventory or SOS Inventory Software?

SOS Inventory Software is rated higher. Nano Inventory averages 3.5 out of 5 from 8 ratings, while SOS Inventory Software averages 4.2 from 82 ratings.

### Do Nano Inventory or SOS Inventory Software have ads?

Neither Nano Inventory nor SOS Inventory Software shows ads.

### Which is updated more often, Nano Inventory or SOS Inventory Software?

Nano Inventory ships an update every 3 months, and SOS Inventory Software every 6 weeks. Most recently, Nano Inventory was updated on September 21, 2026 and SOS Inventory Software on September 2, 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.*