# Dux Inventory vs Invoice & Quotation Maker

The clearest difference is price: Invoice & Quotation Maker at Free against Dux Inventory's $79.99. Invoice & Quotation Maker also leads on iOS requirement (15.0 vs 17.4). Dux Inventory's advantage is update cadence (every 3 weeks vs every 7 months). On ads, in-app purchases and device support there is nothing between them.

Invoice & Quotation Maker is free to download; Dux Inventory costs $79.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dux Inventory ships an update every 3 weeks, Invoice & Quotation Maker every 7 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Dux Inventory | Invoice & Quotation Maker |
| --- | --- | --- |
| Price | $79.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 7 months |
| Size | 14 MB | 20 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [T3ZZ LIMITED](https://appshunter.io/developer/1679560419) | [Skyraan Technologies](https://appshunter.io/developer/1650058812) |

## What reviewers say

### Dux Inventory

[App page](https://appshunter.io/ios/app/dux-inventory/id6470217950)

**In-app purchases:** none


### Invoice & Quotation Maker

[App page](https://appshunter.io/ios/app/invoice-and-quotation-maker/id6752488289)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dux Inventory free?

Dux Inventory costs $79.99, with no in-app purchases.

### Is Invoice & Quotation Maker free?

Invoice & Quotation Maker is free to download, with no in-app purchases.

### Do Dux Inventory or Invoice & Quotation Maker have ads?

Neither Dux Inventory nor Invoice & Quotation Maker shows ads.

### Which is updated more often, Dux Inventory or Invoice & Quotation Maker?

Dux Inventory ships an update every 3 weeks, and Invoice & Quotation Maker every 7 months. Most recently, Dux Inventory was updated on October 16, 2026 and Invoice & Quotation Maker on October 13, 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.*