# Notebook Jam vs Through Block Ext

Notebook Jam and Through Block Ext 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. Neither carries in-app purchases, so what you see is what you pay.

Notebook Jam ships an update every 23 months, Through Block Ext every 45 months. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Notebook Jam | Through Block Ext |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/notebook-jam/id1345720964/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 23 months** | Every 45 months |
| Monetization | Free | — |
| Size | 40 MB | 22 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Rears](https://appshunter.io/developer/1120460355) | [ryo itou](https://appshunter.io/developer/1435019729) |

## What reviewers say

### Notebook Jam

[App page](https://appshunter.io/ios/app/notebook-jam/id1345720964)

A unique puzzle game where you flip through notebook pages to alter the level and reach the end of each stage. Discover hidden paperclips for bonus levels and avoid the eager eraser. Conquer the notebooks, one sheet at a time.

**Highlights:** Flip pages to change the level, Discover hidden paperclips, Unlock bonus stages, Avoid the eraser character, Conquer sheet by sheet

**Features:** macOS Compatibility

**In-app purchases:** none


### Through Block Ext

[App page](https://appshunter.io/ios/app/through-block-ext/id1528643105)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Notebook Jam free?

Notebook Jam is free to download, with no in-app purchases.

### Is Through Block Ext free?

Through Block Ext is free to download, with no in-app purchases.

### Do Notebook Jam or Through Block Ext have ads?

Neither Notebook Jam nor Through Block Ext shows ads.

### Which is updated more often, Notebook Jam or Through Block Ext?

Notebook Jam ships an update every 23 months, and Through Block Ext every 45 months. Most recently, Notebook Jam was updated on June 1, 2026 and Through Block Ext on September 23, 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.*