# Viewer for Trello vs Obsidian

The clearest difference is in-app purchases: Obsidian at none against Viewer for Trello's 1. Obsidian also leads on chart position (#129 vs unranked). Viewer for Trello's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Viewer for Trello sells 1 one-off in-app purchase. Obsidian asks for nothing beyond the download.

Viewer for Trello ships an update every 4 days, Obsidian every 3 weeks. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Viewer for Trello | Obsidian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (2.8K ratings)](https://appshunter.io/ios/app/obsidian-connected-notes/id1557175442/reviews)** |
| Number of ratings | — | **2.8K** |
| Positive reviews | — | 61.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | — | Free |
| Best chart rank | — | **#129** |
| Size | 2 MB | 40 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, Apple TV | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Appic Ltd.](https://appshunter.io/developer/984875987) | [Dynalist Inc.](https://appshunter.io/developer/1195392807) |

## What reviewers say

### Viewer for Trello

[App page](https://appshunter.io/ios/app/viewer-for-trello/id1548761411)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Board Access | $4.99 | one-time |


### Obsidian

[App page](https://appshunter.io/ios/app/obsidian-connected-notes/id1557175442)

**Currently charting:** #129 Top Free · Productivity (US App Store)

Organize your thoughts and ideas with a powerful knowledge base that utilizes local Markdown files. This app acts as your personal second brain, accessible on your mobile device for seamless note-taking and idea connection.

**Highlights:** Local Markdown file storage, Customizable toolbar, Graph view for connections, Community plugins, Themes, iCloud sync

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Powerful features
- 👍 Customizable and flexible
- 🔒 Secure and private
- 💡 Innovative note-taking approach
- 🚀 Smooth mobile experience

**What reviewers complain about**

- 🐛 Sync issues and unreliable iCloud integration
- 🔋 Slow startup and performance issues on mobile
- 👎 Steep learning curve for new users
- 👎 Limited sorting and organization options
- 👎 Lack of WYSIWYG editing on mobile

**Reported bugs**

- Sync issues leading to data loss
- Freezing and crashing on mobile devices
- Editing bugs and text input issues

**Requested features**

- Improved sorting and organization options
- WYSIWYG editing on mobile
- Better integration with other cloud storage services
- More intuitive onboarding process for new users
- Native mobile widgets and share sheet integration


## Frequently asked questions

### Is Viewer for Trello free?

Viewer for Trello is free to download, with in-app purchases available.

### Is Obsidian free?

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

### Do Viewer for Trello or Obsidian have ads?

Neither Viewer for Trello nor Obsidian shows ads.

### Which is updated more often, Viewer for Trello or Obsidian?

Viewer for Trello ships an update every 4 days, and Obsidian every 3 weeks. Most recently, Viewer for Trello was updated on October 10, 2026 and Obsidian on October 24, 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.*