# TB LOAD vs Donan Engineering

The clearest difference is in-app purchases: Donan Engineering at none against TB LOAD's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TB LOAD sells 4 in-app purchases, starting at $24.99 per month. Donan Engineering asks for nothing beyond the download.

TB LOAD ships an update monthly, Donan Engineering every 6 weeks. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TB LOAD | Donan Engineering |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/donan-engineering/id6759627720/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | — | Free |
| Size | 10 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [TB Tech Inc.](https://appshunter.io/developer/1827162159) | [HVAC Investigators, LLC](https://appshunter.io/developer/1419754098) |

## What reviewers say

### TB LOAD

[App page](https://appshunter.io/ios/app/tb-load/id6758864918)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Broker Agent | $24.99 | per month |
| AI Dispatch Agent | $99.99 | per month |
| AI Broker Agent (Annual) | $179.99 | per year |
| AI Dispatch Agent (Annual) | $900.00 | per year |


### Donan Engineering

[App page](https://appshunter.io/ios/app/donan-engineering/id6759627720)

This tool assists insurance professionals with field inspections by guiding them through data collection. Submit your findings and receive a sealed engineering report with answers from a licensed professional engineer, typically within 3 business days.

**Highlights:** Guided field inspection protocol, Photograph and documentation collection, Sealed engineering reports, Answers from licensed professional engineers, Fast report turnaround (avg. 3 business days)

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

**In-app purchases:** none


## Frequently asked questions

### Is TB LOAD free?

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

### Is Donan Engineering free?

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

### Do TB LOAD or Donan Engineering have ads?

Neither TB LOAD nor Donan Engineering shows ads.

### Which is updated more often, TB LOAD or Donan Engineering?

TB LOAD ships an update monthly, and Donan Engineering every 6 weeks. Most recently, TB LOAD was updated on October 1, 2026 and Donan Engineering on September 23, 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.*