# Crazy Inventory vs SecureMail Viewer

The clearest difference is price: SecureMail Viewer at Free against Crazy Inventory's $2.99. Crazy Inventory's advantage is update cadence (every 3 months vs every 7 months) and iOS requirement (12.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

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

Crazy Inventory ships an update every 3 months, SecureMail Viewer every 7 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Crazy Inventory | SecureMail Viewer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/crazy-inventory/id911754820/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Paid | — |
| Size | 38 MB | 1 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Dubiel](https://appshunter.io/developer/584489819) | [Xnet Solutions GmbH & Co KG](https://appshunter.io/developer/921948167) |

## What reviewers say

### Crazy Inventory

[App page](https://appshunter.io/ios/app/crazy-inventory/id911754820)

Streamline manual inventory counts with this straightforward app. Easily create, import, and manage product lists. Track counted quantities, compare target vs. actual amounts, and export detailed reports as PDF files.

**Highlights:** Create and manage inventories, Import product lists, Track counted amounts, Barcode scanning for items, Offline inventory processing, Export inventory reports (PDF), Compare target vs. actual quantities

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

**In-app purchases:** none


### SecureMail Viewer

[App page](https://appshunter.io/ios/app/securemail-viewer/id6755161112)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Crazy Inventory free?

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

### Is SecureMail Viewer free?

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

### Do Crazy Inventory or SecureMail Viewer have ads?

Neither Crazy Inventory nor SecureMail Viewer shows ads.

### Which is updated more often, Crazy Inventory or SecureMail Viewer?

Crazy Inventory ships an update every 3 months, and SecureMail Viewer every 7 months. Most recently, Crazy Inventory was updated on October 24, 2026 and SecureMail Viewer on October 19, 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.*