# Memex vs Split & Merge PDF

The clearest difference is in-app purchases: Memex at none against Split & Merge PDF's 1. Split & Merge PDF's advantage is update cadence (weekly vs fortnightly) and ratings volume (4 vs 1). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Split & Merge PDF sells 1 one-off in-app purchase. Memex asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Memex against 5.0 for Split & Merge PDF. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Memex ships an update fortnightly, Split & Merge PDF weekly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Memex | Split & Merge PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/memex-ai-markdown-canvas/id6758204977/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/split-and-merge-pdf/id6775295535/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 35 MB | 2 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alex Morris](https://appshunter.io/developer/1871426979) | [Infamous Endeavors LLC](https://appshunter.io/developer/6775295537) |

## What reviewers say

### Memex

[App page](https://appshunter.io/ios/app/memex-ai-markdown-canvas/id6758204977)

Organize your Markdown notes and PDFs on an infinite canvas. Connect documents, sketch with Apple Pencil, and use an AI chat to ask questions about your gathered information. Your files remain private and accessible via iCloud Drive.

**Highlights:** Infinite canvas for notes and PDFs, AI chat to query your documents, Apple Pencil handwriting and sketching, Markdown rendering as live cards, Organize and connect content with arrows, Export content as images

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

**In-app purchases:** none


### Split & Merge PDF

[App page](https://appshunter.io/ios/app/split-and-merge-pdf/id6775295535)

Easily split, merge, and reorder pages within PDF documents directly on your iPhone. This straightforward tool allows you to select specific pages, rearrange their order, and export them as a new PDF without needing an account or subscription.

**Highlights:** Import PDFs from Files, View pages in a grid, Select and reorder pages, Export as new PDF, Merge multiple PDFs, Remove pages

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Unlimited Exports | $2.99 | one-time |


## Frequently asked questions

### Is Memex free?

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

### Is Split & Merge PDF free?

Split & Merge PDF is free to download, with in-app purchases available.

### Which has better reviews, Memex or Split & Merge PDF?

Memex and Split & Merge PDF are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do Memex or Split & Merge PDF have ads?

Neither Memex nor Split & Merge PDF shows ads.

### Which is updated more often, Memex or Split & Merge PDF?

Memex ships an update fortnightly, and Split & Merge PDF weekly. Most recently, Memex was updated on October 31, 2026 and Split & Merge PDF on October 31, 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.*