# Notator | Annotate Documents vs 勾配換算

The clearest difference is in-app purchases: 勾配換算 at none against Notator | Annotate Documents's 2. 勾配換算 also leads on iOS requirement (18.0 vs 26.0). Notator | Annotate Documents's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Notator | Annotate Documents sells 2 in-app purchases, starting at $1.99 per month. 勾配換算 asks for nothing beyond the download.

## The numbers

| Metric | Notator | Annotate Documents | 勾配換算 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/notator-annotate-documents/id6447326736/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | — |
| Monetization | Freemium | — |
| Size | 30 MB | 9 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CIMTOPS SG LAB Pte. Ltd.](https://appshunter.io/developer/1657070999) | [MASASHI YOSHIDA](https://appshunter.io/developer/6790209435) |

## What reviewers say

### Notator | Annotate Documents

[App page](https://appshunter.io/ios/app/notator-annotate-documents/id6447326736)

This app allows for detailed annotation of PDFs and images with various tools, including support for Apple Pencil. It offers flexible import options, high-quality rendering for large files, and intuitive page management. Upgrade to Pro for advanced export and editing capabilities.

**Highlights:** PDF and image annotation, Apple Pencil support, Flexible PDF import, High-quality PDF support, Zoom up to 1000%, Intuitive page management, Cloud storage integration

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notator Pro Monthly | $1.99 | per month |
| Notator Pro Yearly | $8.99 | per year |


### 勾配換算

[App page](https://appshunter.io/ios/app/id6818676602)

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

**In-app purchases:** none


## Frequently asked questions

### Is Notator | Annotate Documents free?

Notator | Annotate Documents is free to download, with in-app purchases available.

### Is 勾配換算 free?

勾配換算 is free to download, with no in-app purchases.

### Do Notator | Annotate Documents or 勾配換算 have ads?

勾配換算 shows ads; Notator | Annotate Documents does not.

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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.*