# Boreal PDF vs Thought Relay

The clearest difference is in-app purchases: Thought Relay at none against Boreal PDF's 3. Thought Relay also leads on device support (5 vs 1). Boreal PDF's advantage is update cadence (every 2 days vs monthly). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Boreal PDF sells 3 in-app purchases, starting at $6.99 per month. Thought Relay asks for nothing beyond the download.

Boreal PDF ships an update every 2 days, Thought Relay monthly. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Boreal PDF | Thought Relay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Size | 7 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Borealbit Technology Limited](https://appshunter.io/developer/1808424081) | [Myworkingmemory LLC](https://appshunter.io/developer/1892099684) |

## What reviewers say

### Boreal PDF

[App page](https://appshunter.io/ios/app/boreal-pdf/id6787897228)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Boreal PDF Pro Monthly | $6.99 | per month |
| Boreal PDF Pro Yearly | $39.99 | per year |
| Boreal PDF 24-hour Pro Pass | $2.99 | one-time |


### Thought Relay

[App page](https://appshunter.io/ios/app/thought-relay-fast-notes/id6789680363)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Boreal PDF free?

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

### Is Thought Relay free?

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

### Do Boreal PDF or Thought Relay have ads?

Neither Boreal PDF nor Thought Relay shows ads.

### Which is updated more often, Boreal PDF or Thought Relay?

Boreal PDF ships an update every 2 days, and Thought Relay monthly. Most recently, Boreal PDF was updated on November 13, 2026 and Thought Relay on November 10, 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.*