# IKA PEN vs VaultSync for Obsidian

The clearest difference is in-app purchases: IKA PEN at none against VaultSync for Obsidian's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. VaultSync for Obsidian sells 4 in-app purchases, starting at $1.99 per month. IKA PEN asks for nothing beyond the download.

## The numbers

| Metric | IKA PEN | VaultSync for Obsidian |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 66 MB | 25 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [IKA-Werke GmbH & Co. KG](https://appshunter.io/developer/1337147206) | [Umut Erdem](https://appshunter.io/developer/1891737870) |

## What reviewers say

### IKA PEN

[App page](https://appshunter.io/ios/app/ika-pen/id6736399384)

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

**In-app purchases:** none


### VaultSync for Obsidian

[App page](https://appshunter.io/ios/app/vaultsync-for-obsidian/id6761845197)

Sync your Obsidian notes between your devices and your own server using peer-to-peer technology. This app provides a direct connection without relying on cloud storage, ensuring your data remains private and accessible on your iPhone and iPad.

**Highlights:** Peer-to-peer sync with your own server, No managed note cloud or third-party storage, Direct sync into Obsidian's iOS sandbox, Markdown conflict resolver with side-by-side diffs, Sync activity timeline and diagnostics, Optional Cloud Relay for faster incoming sync

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cloud Relay | $1.99 | per month |
| Cloud Relay | $14.99 | per year |
| Small Contribution | $2.99 | one-time |
| Big Contribution | $9.99 | one-time |


## Frequently asked questions

### Is IKA PEN free?

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

### Is VaultSync for Obsidian free?

VaultSync for Obsidian is free to download, with in-app purchases available.

### Do IKA PEN or VaultSync for Obsidian have ads?

Neither IKA PEN nor VaultSync for Obsidian shows ads.

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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.*