# BruSynk vs KnowTree

The clearest difference is in-app purchases: BruSynk at none against KnowTree's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KnowTree sells 1 one-off in-app purchase. BruSynk asks for nothing beyond the download.

BruSynk ships an update every 2 weeks, KnowTree every 9 days. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | BruSynk | KnowTree |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 24 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kanji Goto](https://appshunter.io/developer/1799644657) | [Ukon Ryohei](https://appshunter.io/developer/1834526187) |

## What reviewers say

### BruSynk

[App page](https://appshunter.io/ios/app/brusynk/id6749214012)

**Features:** macOS Compatibility

**In-app purchases:** none


### KnowTree

[App page](https://appshunter.io/ios/app/knowtree/id6757321205)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowTree Premium | $4.99 | one-time |


## Frequently asked questions

### Is BruSynk free?

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

### Is KnowTree free?

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

### Do BruSynk or KnowTree have ads?

Both BruSynk and KnowTree show ads.

### Which is updated more often, BruSynk or KnowTree?

BruSynk ships an update every 2 weeks, and KnowTree every 9 days. Most recently, BruSynk was updated on October 16, 2026 and KnowTree on October 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.*