# Physics Formulas vs RYORAKU

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

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

Physics Formulas ships an update every 2 months, RYORAKU every 2 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Physics Formulas | RYORAKU |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 38 MB | 27 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Fuji Bit Inc.](https://appshunter.io/developer/1874205957) |

## What reviewers say

### 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 |


### RYORAKU

[App page](https://appshunter.io/ios/app/ryoraku/id6760751278)

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics Formulas free?

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

### Is RYORAKU free?

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

### Do Physics Formulas or RYORAKU have ads?

RYORAKU shows ads; Physics Formulas does not.

### Which is updated more often, Physics Formulas or RYORAKU?

Physics Formulas ships an update every 2 months, and RYORAKU every 2 weeks. Most recently, Physics Formulas was updated on November 9, 2026 and RYORAKU 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.*