# Pettson's Inventions 2 vs BookLoop

The clearest difference is price: BookLoop at Free against Pettson's Inventions 2's $4.99. BookLoop also leads on update cadence (weekly vs every 8 months). Pettson's Inventions 2's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 15.1). On ads and device support there is nothing between them.

BookLoop is free to download; Pettson's Inventions 2 costs $4.99 up front. BookLoop sells 4 in-app purchases, starting at $12.99 per month. Pettson's Inventions 2 asks for nothing beyond the download.

Pettson's Inventions 2 ships an update every 8 months, BookLoop weekly. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Pettson's Inventions 2 | BookLoop |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.7 (25 ratings)](https://appshunter.io/ios/app/pettsons-inventions-2/id573512990/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 70.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Weekly** |
| Monetization | Paid | — |
| Size | 388 MB | 44 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Filimundus AB](https://appshunter.io/developer/468644481) | [Prashik Walke](https://appshunter.io/developer/1874684557) |

## What reviewers say

### Pettson's Inventions 2

[App page](https://appshunter.io/ios/app/pettsons-inventions-2/id573512990)

Help an old man and his cat build amazing contraptions by dragging and dropping parts into place. Solve 37 ingenious puzzles that stimulate creativity and teach logic. Unlock a secret upon completion.

**Highlights:** 37 ingenious inventions to solve, Drag and drop puzzle mechanics, Increase difficulty with fake parts, Stimulates creativity and logic, Kid-friendly interface, Original artwork

**In-app purchases:** none


### BookLoop

[App page](https://appshunter.io/ios/app/bookloop/id6758735534)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $12.99 | per month |
| Unlimited Monthly | $24.99 | per month |
| Pro Annual | $99.99 | per year |
| Unlimited Annual | $199.99 | per year |


## Frequently asked questions

### Is Pettson's Inventions 2 free?

Pettson's Inventions 2 costs $4.99, with no in-app purchases.

### Is BookLoop free?

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

### Do Pettson's Inventions 2 or BookLoop have ads?

Neither Pettson's Inventions 2 nor BookLoop shows ads.

### Which is updated more often, Pettson's Inventions 2 or BookLoop?

Pettson's Inventions 2 ships an update every 8 months, and BookLoop weekly. Most recently, Pettson's Inventions 2 was updated on September 28, 2026 and BookLoop on September 15, 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.*