# Simple PDF vs Tabs Keeper for Safari

The clearest difference is in-app purchases: Simple PDF at none against Tabs Keeper for Safari's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Tabs Keeper for Safari sells 3 in-app purchases, starting at $3.99 per month. Simple PDF asks for nothing beyond the download.

Simple PDF ships an update every 3 weeks, Tabs Keeper for Safari fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple PDF | Tabs Keeper for Safari |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/simple-pdf-pdf-reader/id6746363157/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 12 MB | 9 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Chang Keun Jung](https://appshunter.io/developer/1813307401) | [云 康](https://appshunter.io/developer/6811085500) |

## What reviewers say

### Simple PDF

[App page](https://appshunter.io/ios/app/simple-pdf-pdf-reader/id6746363157)

This application allows users to view, annotate, and edit PDF documents with ease. Features include document management, OCR capabilities, and a built-in scanner. It's designed for students and professionals to stay productive on the go.

**Highlights:** View, annotate, and edit PDFs, Full-text search and navigation, Free-draw and text box annotation, Page reordering and PDF merging, Scan documents with built-in camera, OCR for text extraction, Home screen widget for quick access

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

**In-app purchases:** none


### Tabs Keeper for Safari

[App page](https://appshunter.io/ios/app/tabs-keeper-for-safari/id6811293405)

**Features:** Safari Extension, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual | $14.99 | per year |
| Lifetime | $25.99 | one-time |


## Frequently asked questions

### Is Simple PDF free?

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

### Is Tabs Keeper for Safari free?

Tabs Keeper for Safari is free to download, with in-app purchases available.

### Do Simple PDF or Tabs Keeper for Safari have ads?

Neither Simple PDF nor Tabs Keeper for Safari shows ads.

### Which is updated more often, Simple PDF or Tabs Keeper for Safari?

Simple PDF ships an update every 3 weeks, and Tabs Keeper for Safari fortnightly. Most recently, Simple PDF was updated on October 30, 2026 and Tabs Keeper for Safari 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.*