# Khmer Physic Formulas vs BM Hub

The clearest difference is in-app purchases: Khmer Physic Formulas at none against BM Hub's 1. Khmer Physic Formulas also leads on iOS requirement (12.0 vs 15.1). BM Hub's advantage is ads (none vs shown) and update cadence (every 9 months vs every 19 months). On price and device support there is nothing between them.

Both are free to download. BM Hub sells 1 one-off in-app purchase. Khmer Physic Formulas asks for nothing beyond the download.

Khmer Physic Formulas ships an update every 19 months, BM Hub every 9 months. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Khmer Physic Formulas | BM Hub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (15 ratings)](https://appshunter.io/ios/app/khmer-physic-formulas/id1076144702/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 19 months | **Every 9 months** |
| Monetization | Ad-supported | — |
| Size | 62 MB | 52 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cheab Kunthea](https://appshunter.io/developer/1073035288) | [TagMango Inc](https://appshunter.io/developer/1611765353) |

## What reviewers say

### Khmer Physic Formulas

[App page](https://appshunter.io/ios/app/khmer-physic-formulas/id1076144702)

Access a comprehensive collection of physics formulas for various grade levels and specialized fields. This app offers a simple, fast, and smooth user interface for easy formula lookup.

**Highlights:** Physics formulas for grades 7-12, Engineering physics formulas, Basic physics formulas, SI Units and constants, Formula symbol reference, Simple and fast UI

**Features:** macOS Compatibility

**In-app purchases:** none


### BM Hub

[App page](https://appshunter.io/ios/app/bm-hub/id6740744268)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brand Magnet Challenge | $49.99 | one-time |


## Frequently asked questions

### Is Khmer Physic Formulas free?

Khmer Physic Formulas is free to download, with no in-app purchases.

### Is BM Hub free?

BM Hub is free to download, with in-app purchases available.

### Do Khmer Physic Formulas or BM Hub have ads?

Khmer Physic Formulas shows ads; BM Hub does not.

### Which is updated more often, Khmer Physic Formulas or BM Hub?

Khmer Physic Formulas ships an update every 19 months, and BM Hub every 9 months. Most recently, Khmer Physic Formulas was updated on October 13, 2026 and BM Hub 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.*