# Invoice Maker Estimate ◆ Quote vs ShelfMate Inventory

The clearest difference is in-app purchases: ShelfMate Inventory at none against Invoice Maker Estimate ◆ Quote's 2. ShelfMate Inventory also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Invoice Maker Estimate ◆ Quote sells 2 in-app purchases, starting at $4.99 per month. ShelfMate Inventory asks for nothing beyond the download.

Invoice Maker Estimate ◆ Quote ships an update monthly, ShelfMate Inventory every 2 months. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Invoice Maker Estimate ◆ Quote | ShelfMate Inventory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/invoice-maker-estimate-quote/id6737855762/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 27 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Huzaib Sayyed](https://appshunter.io/developer/1778310247) | [SHELFMATE PTY LTD](https://appshunter.io/developer/1825987783) |

## What reviewers say

### Invoice Maker Estimate ◆ Quote

[App page](https://appshunter.io/ios/app/invoice-maker-estimate-quote/id6737855762)

Create professional invoices, receipts, estimates, and purchase orders quickly. This app offers customizable templates, tax support, and easy PDF sharing for freelancers and small businesses.

**Highlights:** Invoice and receipt generation, Quotation and estimate creation, Customizable business templates, Professional letterheads with branding, Tax support (VAT, GST, PAN), PDF export and sharing, Delivery notes and purchase orders

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Experience - Monthly | $4.99 | per month |
| Ad-Free Experience - Yearly | $19.99 | per year |


### ShelfMate Inventory

[App page](https://appshunter.io/ios/app/shelfmate-inventory/id6748490252)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker Estimate ◆ Quote free?

Invoice Maker Estimate ◆ Quote is free to download, with in-app purchases available.

### Is ShelfMate Inventory free?

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

### Do Invoice Maker Estimate ◆ Quote or ShelfMate Inventory have ads?

Invoice Maker Estimate ◆ Quote shows ads; ShelfMate Inventory does not.

### Which is updated more often, Invoice Maker Estimate ◆ Quote or ShelfMate Inventory?

Invoice Maker Estimate ◆ Quote ships an update monthly, and ShelfMate Inventory every 2 months. Most recently, Invoice Maker Estimate ◆ Quote was updated on October 16, 2026 and ShelfMate Inventory on October 12, 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.*