# Invoice, Quotation & Receipt vs Glück OS

The clearest difference is in-app purchases: Glück OS at none against Invoice, Quotation & Receipt's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Invoice, Quotation & Receipt sells 4 in-app purchases, starting at $2.90 per month. Glück OS asks for nothing beyond the download.

Invoice, Quotation & Receipt ships an update every 2 weeks, Glück OS every 10 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Invoice, Quotation & Receipt | Glück OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (5 ratings)](https://appshunter.io/ios/app/invoice-quotation-and-receipt/id1563291641/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 27.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 62 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [norberto ferreira dos santos Neto](https://appshunter.io/developer/1464504530) | [Juan Rafael Reynoso Sandoval](https://appshunter.io/developer/1875622085) |

## What reviewers say

### Invoice, Quotation & Receipt

[App page](https://appshunter.io/ios/app/invoice-quotation-and-receipt/id1563291641)

Generate and send professional invoices, quotations, and receipts. Track payments, manage customer and product data, and customize documents with signatures and photos. Access sales reports to stay in control of your business finances.

**Highlights:** Create invoices, quotations, and receipts, Manage customers, products, and suppliers, Track received payments, Add customer signatures and photos, Convert quotations to invoices, invoices to receipts, Export reports to PDF and CSV, Customize fields and add custom fields

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $2.90 | per month |
| Quarterly Plan | $6.90 | per 3 months |
| Semi-Annual Plan | $11.90 | per 6 months |
| Buy Now | $14.99 | one-time |


### Glück OS

[App page](https://appshunter.io/ios/app/gluck-os/id6760788664)

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

**In-app purchases:** none


## Frequently asked questions

### Is Invoice, Quotation & Receipt free?

Invoice, Quotation & Receipt is free to download, with in-app purchases available.

### Is Glück OS free?

Glück OS is free to download, with no in-app purchases.

### Do Invoice, Quotation & Receipt or Glück OS have ads?

Neither Invoice, Quotation & Receipt nor Glück OS shows ads.

### Which is updated more often, Invoice, Quotation & Receipt or Glück OS?

Invoice, Quotation & Receipt ships an update every 2 weeks, and Glück OS every 10 days. Most recently, Invoice, Quotation & Receipt was updated on November 7, 2026 and Glück OS on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*