# My Guru vs Physics Formulas

The clearest difference is in-app purchases: My Guru at none against Physics Formulas's 2. My Guru also leads on iOS requirement (11.0 vs 15.1). Physics Formulas's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Physics Formulas sells 2 in-app purchases, starting at $3.99 per 7 days. My Guru asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | My Guru | Physics Formulas |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | Every 2 months |
| Size | 33 MB | 38 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [IKEY TECHNOLOGY SDN. BHD.](https://appshunter.io/developer/1471109126) | [Mobin Akhter](https://appshunter.io/developer/1812505286) |

## What reviewers say

### My Guru

[App page](https://appshunter.io/ios/app/my-guru/id1607034016)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Formulas

[App page](https://appshunter.io/ios/app/physics-formulas-physref/id6757826240)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $3.99 | per 7 days |
| Lifetime Access | $49.99 | one-time |


## Frequently asked questions

### Is My Guru free?

My Guru is free to download, with no in-app purchases.

### Is Physics Formulas free?

Physics Formulas is free to download, with in-app purchases available.

### Do My Guru or Physics Formulas have ads?

My Guru shows ads; Physics Formulas does not.

### Which is updated more often, My Guru or Physics Formulas?

My Guru ships an update every 2 months, and Physics Formulas every 2 months. Most recently, My Guru was updated on October 6, 2026 and Physics Formulas on October 4, 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.*