# Invoice Maker Involea vs Simple Invoice PDF

Invoice Maker Involea and Simple Invoice PDF are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Invoice Maker Involea sells 2 in-app purchases, starting at $6.99 per 7 days and Simple Invoice PDF sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Invoice Maker Involea ships an update every 3 weeks, Simple Invoice PDF fortnightly. Both last shipped on October 6, 2026.

## The numbers

| Metric | Invoice Maker Involea | Simple Invoice PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 16 MB | 2 MB |
| Requires iOS | **18.2** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Smart Automation SRL](https://appshunter.io/developer/1822502270) | [Serghei Eschin](https://appshunter.io/developer/6774241012) |

## What reviewers say

### Invoice Maker Involea

[App page](https://appshunter.io/ios/app/invoice-maker-involea/id6778569566)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Involea Weekly | $6.99 | per 7 days |
| Involea Yearly | $49.99 | per year |


### Simple Invoice PDF

[App page](https://appshunter.io/ios/app/simple-invoice-pdf/id6788337612)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Invoice Pro | $9.99 | one-time |


## Frequently asked questions

### Is Invoice Maker Involea free?

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

### Is Simple Invoice PDF free?

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

### Do Invoice Maker Involea or Simple Invoice PDF have ads?

Neither Invoice Maker Involea nor Simple Invoice PDF shows ads.

### Which is updated more often, Invoice Maker Involea or Simple Invoice PDF?

Invoice Maker Involea ships an update every 3 weeks, and Simple Invoice PDF fortnightly. Most recently, Invoice Maker Involea was updated on October 6, 2026 and Simple Invoice PDF on October 6, 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.*