# HVAC Manual Boss vs eApp V2

The clearest difference is in-app purchases: eApp V2 at none against HVAC Manual Boss's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. HVAC Manual Boss sells 1 in-app purchase, starting at $29.99 per month. eApp V2 asks for nothing beyond the download.

HVAC Manual Boss ships an update every 9 days, eApp V2 weekly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HVAC Manual Boss | eApp V2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-manual-boss/id6761338720/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | Subscription | — |
| Size | 39 MB | 77 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [John Kelley](https://appshunter.io/developer/1873680474) | [Soleran Inc.](https://appshunter.io/developer/550601645) |

## What reviewers say

### HVAC Manual Boss

[App page](https://appshunter.io/ios/app/hvac-manual-boss/id6761338720)

This app streamlines HVAC load calculations, enabling users to quickly generate Manual J, S, and D outputs. It allows for on-the-spot pricing and uses real-world data for accurate estimates, even while on-site.

**Highlights:** Manual J load calculations, Manual D and S outputs, On-the-spot pricing, Real-world data integration, Major equipment brand access, On-site estimate generation

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hvac Manual Boss | $29.99 | per month |


### eApp V2

[App page](https://appshunter.io/ios/app/eapp-v2/id6804830232)

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

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Manual Boss free?

HVAC Manual Boss is free to download, with in-app purchases available.

### Is eApp V2 free?

eApp V2 is free to download, with no in-app purchases.

### Do HVAC Manual Boss or eApp V2 have ads?

Neither HVAC Manual Boss nor eApp V2 shows ads.

### Which is updated more often, HVAC Manual Boss or eApp V2?

HVAC Manual Boss ships an update every 9 days, and eApp V2 weekly. Most recently, HVAC Manual Boss was updated on October 25, 2026 and eApp V2 on October 31, 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.*