# DotInk vs GreaseAI

The clearest difference is in-app purchases: GreaseAI at none against DotInk's 3. DotInk's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. DotInk sells 3 in-app purchases, starting at $0.99 per month. GreaseAI asks for nothing beyond the download.

DotInk ships an update weekly, GreaseAI every 10 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | DotInk | GreaseAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/dotink-eink-assistant/id6754073002/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Freemium | — |
| Size | 11 MB | 36 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [业 毕](https://appshunter.io/developer/1850598730) | [MISES NETWORK PTE. LTD.](https://appshunter.io/developer/1696881231) |

## What reviewers say

### DotInk

[App page](https://appshunter.io/ios/app/dotink-eink-assistant/id6754073002)

This app helps e-ink device owners customize fonts and convert e-books for their readers. It offers WYSIWYG font editing, e-book formatting, and seamless wireless integration with supported devices. All processing is done offline, prioritizing user privacy.

**Highlights:** WYSIWYG font customization, E-book conversion and formatting, Wireless device integration, Offline processing, Real-time screen simulation, Import TTF fonts

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.99 | per month |
| Yearly Pro | $5.99 | per year |
| Lifetime Pro | $14.99 | one-time |


### GreaseAI

[App page](https://appshunter.io/ios/app/greaseai/id6804923231)

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

**In-app purchases:** none


## Frequently asked questions

### Is DotInk free?

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

### Is GreaseAI free?

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

### Do DotInk or GreaseAI have ads?

Neither DotInk nor GreaseAI shows ads.

### Which is updated more often, DotInk or GreaseAI?

DotInk ships an update weekly, and GreaseAI every 10 days. Most recently, DotInk was updated on November 5, 2026 and GreaseAI on November 6, 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.*