# TruNote Viewer vs Dojo Hero

The clearest difference is in-app purchases: TruNote Viewer at none against Dojo Hero's 5. TruNote Viewer also leads on iOS requirement (8.1 vs 15.0). Dojo Hero's advantage is update cadence (every 6 months vs every 21 months). On price, ads and device support there is nothing between them.

Both are free to download. Dojo Hero sells 5 in-app purchases, starting at $66.99 per month. TruNote Viewer asks for nothing beyond the download.

TruNote Viewer ships an update every 21 months, Dojo Hero every 6 months. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | TruNote Viewer | Dojo Hero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (5 ratings)](https://appshunter.io/ios/app/dojo-hero/id1492158587/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 6 months** |
| Monetization | — | Subscription |
| Size | 6 MB | 97 MB |
| Requires iOS | **8.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynabook Inc.](https://appshunter.io/developer/978549564) | [BLACK belt karate academy llc](https://appshunter.io/developer/1472313244) |

## What reviewers say

### TruNote Viewer

[App page](https://appshunter.io/ios/app/trunote-viewer/id1040355366)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dojo Hero

[App page](https://appshunter.io/ios/app/dojo-hero/id1492158587)

This app provides martial arts school owners with a comprehensive toolkit to enhance registration, retention, and enrollment. It offers drills, marketing materials, strategies, and resources, with offline access and scheduling capabilities. A desktop version is also included with membership.

**Highlights:** Martial arts drills and strategies, Marketing materials and resources, Offline video access, Class scheduling and planning, Printable resources, Desktop version access

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Core Essentials - Monthly | $66.99 | per month |
| PRO - Monthly | $96.99 | per month |
| Core Essentials - Annually | $699.99 | per year |
| PRO - Annually | $899.99 | per year |
| Summer Camp Profit System | $999.99 | one-time |


## Frequently asked questions

### Is TruNote Viewer free?

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

### Is Dojo Hero free?

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

### Do TruNote Viewer or Dojo Hero have ads?

Neither TruNote Viewer nor Dojo Hero shows ads.

### Which is updated more often, TruNote Viewer or Dojo Hero?

TruNote Viewer ships an update every 21 months, and Dojo Hero every 6 months. Most recently, TruNote Viewer was updated on October 13, 2026 and Dojo Hero on October 9, 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.*