# iobook vs BillPaper Fast Invoice Maker

The clearest difference is update cadence: BillPaper Fast Invoice Maker at every 8 days against iobook's every 3 weeks. BillPaper Fast Invoice Maker also leads on iOS requirement (12.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iobook sells 2 in-app purchases, starting at $1.99 per month and BillPaper Fast Invoice Maker sells 7 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

iobook ships an update every 3 weeks, BillPaper Fast Invoice Maker every 8 days. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | iobook | BillPaper Fast Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 6 MB | 100 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joonhee Cho](https://appshunter.io/developer/1124471697) | [Ivanna Masalovych-Danilchuk](https://appshunter.io/developer/1781532045) |

## What reviewers say

### iobook

[App page](https://appshunter.io/ios/app/iobook/id6742841375)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic (Monthly) | $1.99 | per month |
| Basic (Yearly) | $19.99 | per year |


### BillPaper Fast Invoice Maker

[App page](https://appshunter.io/ios/app/billpaper-fast-invoice-maker/id6748554868)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $3.99 | per 7 days |
| Monthly Subscription | $6.99 | per month |
| Annual Plan | $49.99 | per year |
| 10 token set | $0.99 | one-time |
| 50 Tokens | $3.99 | one-time |
| Power Pack | $5.99 | one-time |
| Ultimate package | $9.99 | one-time |


## Frequently asked questions

### Is iobook free?

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

### Is BillPaper Fast Invoice Maker free?

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

### Do iobook or BillPaper Fast Invoice Maker have ads?

Neither iobook nor BillPaper Fast Invoice Maker shows ads.

### Which is updated more often, iobook or BillPaper Fast Invoice Maker?

iobook ships an update every 3 weeks, and BillPaper Fast Invoice Maker every 8 days. Most recently, iobook was updated on October 11, 2026 and BillPaper Fast Invoice Maker on October 8, 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.*