# Invoice & Estimate vs Simple Invoice PDF

The clearest difference is iOS requirement: Invoice & Estimate at 12.0 against Simple Invoice PDF's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Invoice & Estimate sells 2 in-app purchases, starting at $1.99 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 & Estimate ships an update every 2 weeks, Simple Invoice PDF fortnightly. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Invoice & Estimate | Simple Invoice PDF |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 59 MB | 2 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kateryna Fluierar](https://appshunter.io/developer/1827024761) | [Serghei Eschin](https://appshunter.io/developer/6774241012) |

## What reviewers say

### Invoice & Estimate

[App page](https://appshunter.io/ios/app/invoice-and-estimate/id6748695455)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 1 Week. Auto-renewing. | $1.99 | per 7 days |
| Pro 1 Month. Auto-renewing. | $3.99 | per month |


### 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 & Estimate free?

Invoice & Estimate 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 & Estimate or Simple Invoice PDF have ads?

Neither Invoice & Estimate nor Simple Invoice PDF shows ads.

### Which is updated more often, Invoice & Estimate or Simple Invoice PDF?

Invoice & Estimate ships an update every 2 weeks, and Simple Invoice PDF fortnightly. Most recently, Invoice & Estimate was updated on October 13, 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.*