# The B vs Pine Mountain OS

The clearest difference is ads: Pine Mountain OS at none against The B's shown. Pine Mountain OS also leads on update cadence (every 4 days vs every 9 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The B ships an update every 9 months, Pine Mountain OS every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | The B | Pine Mountain OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/the-b-y-app/id1434445476/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 6 MB | 45 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Behler-Young Company](https://appshunter.io/developer/1434445475) | [Jason Mangus](https://appshunter.io/developer/6803245818) |

## What reviewers say

### The B

[App page](https://appshunter.io/ios/app/the-b-y-app/id1434445476)

This app serves HVAC/R contractors with a comprehensive resource for products, expert support, and troubleshooting. It offers training, NATE testing, and field tools, representing hundreds of manufacturers across Michigan and Northwest Ohio.

**Highlights:** Vast product inventory, Expert support and troubleshooting, Contractor training, NATE testing, Field tools and calculators

**Features:** macOS Compatibility

**In-app purchases:** none


### Pine Mountain OS

[App page](https://appshunter.io/ios/app/pine-mountain-os/id6803245816)

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

**In-app purchases:** none


## Frequently asked questions

### Is The B free?

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

### Is Pine Mountain OS free?

Pine Mountain OS is free to download, with no in-app purchases.

### Do The B or Pine Mountain OS have ads?

The B shows ads; Pine Mountain OS does not.

### Which is updated more often, The B or Pine Mountain OS?

The B ships an update every 9 months, and Pine Mountain OS every 4 days. Most recently, The B was updated on November 2, 2026 and Pine Mountain OS on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*