# Invoice Maker. vs Retro Delegate

The clearest difference is in-app purchases: Retro Delegate at none against Invoice Maker.'s 1. Retro Delegate also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.2). On price, update cadence and ads there is nothing between them.

Both are free to download. Invoice Maker. sells 1 one-off in-app purchase. Retro Delegate asks for nothing beyond the download.

Invoice Maker. ships an update every 4 weeks, Retro Delegate every 3 weeks. The most recent releases landed on October 3, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Invoice Maker. | Retro Delegate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Size | 1 MB | 31 MB |
| Requires iOS | 17.2 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Muhammed Efdal incesu](https://appshunter.io/developer/1748859357) | [TAMER SABRY MAHMOUD ELSAYED AND HIS PARTNER](https://appshunter.io/developer/1819653041) |

## What reviewers say

### Invoice Maker.

[App page](https://appshunter.io/ios/app/invoice-maker-invoicebim/id6648784185)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Invoice Maker Lifetime Premium | $2.99 | one-time |


### Retro Delegate

[App page](https://appshunter.io/ios/app/retro-delegate/id6756227072)

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

**In-app purchases:** none


## Frequently asked questions

### Is Invoice Maker. free?

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

### Is Retro Delegate free?

Retro Delegate is free to download, with no in-app purchases.

### Do Invoice Maker. or Retro Delegate have ads?

Neither Invoice Maker. nor Retro Delegate shows ads.

### Which is updated more often, Invoice Maker. or Retro Delegate?

Invoice Maker. ships an update every 4 weeks, and Retro Delegate every 3 weeks. Most recently, Invoice Maker. was updated on October 3, 2026 and Retro Delegate on September 27, 2026.

---

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