# DotInk vs Obsidian Tactical Board

The clearest difference is price: DotInk at Free against Obsidian Tactical Board's $5.99. Obsidian Tactical Board's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

DotInk is free to download; Obsidian Tactical Board costs $5.99 up front. DotInk sells 3 in-app purchases, starting at $0.99 per month. Obsidian Tactical Board asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | DotInk | Obsidian Tactical Board |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| 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 | Weekly |
| Monetization | Freemium | — |
| Size | 11 MB | 36 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [业 毕](https://appshunter.io/developer/1850598730) | [Jun Maezawa](https://appshunter.io/developer/6783208136) |

## 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 |


### Obsidian Tactical Board

[App page](https://appshunter.io/ios/app/obsidian-tactical-board/id6783208134)

**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 Obsidian Tactical Board free?

Obsidian Tactical Board costs $5.99, with no in-app purchases.

### Do DotInk or Obsidian Tactical Board have ads?

Neither DotInk nor Obsidian Tactical Board shows ads.

### Which is updated more often, DotInk or Obsidian Tactical Board?

DotInk ships an update weekly, and Obsidian Tactical Board weekly. Most recently, DotInk was updated on September 26, 2026 and Obsidian Tactical Board on October 8, 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.*