# Blu Bim vs HVAC PE Exam by Rocket Prep

The clearest difference is ads: HVAC PE Exam by Rocket Prep at none against Blu Bim's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Blu Bim sells 2 in-app purchases, starting at $12.00 per month and HVAC PE Exam by Rocket Prep sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Blu Bim | HVAC PE Exam by Rocket Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Size | 45 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Blubim Ltd](https://appshunter.io/developer/1708589765) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### Blu Bim

[App page](https://appshunter.io/ios/app/blu-bim-learn-revit-tutorials/id6467408755)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BB Monthly Subscription | $12.00 | per month |
| SALE - BB Annual Subscription | $79.00 | per year |


### HVAC PE Exam by Rocket Prep

[App page](https://appshunter.io/ios/app/hvac-pe-exam-by-rocket-prep/id6761375453)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HVAC Weekly Full Access | $3.99 | per 7 days |
| HVAC Monthly Full Access | $17.99 | per month |
| HVAC_R Monthly Full Access | $17.99 | per month |
| HVAC_R_mock_tries_1 | $4.99 | one-time |
| HVAC_R_mock_tries_3 | $9.99 | one-time |
| HVAC_R_mock_tries_5 | $14.99 | one-time |


## Frequently asked questions

### Is Blu Bim free?

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

### Is HVAC PE Exam by Rocket Prep free?

HVAC PE Exam by Rocket Prep is free to download, with in-app purchases available.

### Do Blu Bim or HVAC PE Exam by Rocket Prep have ads?

Blu Bim shows ads; HVAC PE Exam by Rocket Prep does not.

### Which is updated more often, Blu Bim or HVAC PE Exam by Rocket Prep?

Blu Bim ships an update every 3 months, and HVAC PE Exam by Rocket Prep every 3 months. Most recently, Blu Bim was updated on October 5, 2026 and HVAC PE Exam by Rocket Prep on October 12, 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.*