# Physics Formulas Lite vs Interactive Equation Balancer

The clearest difference is in-app purchases: Physics Formulas Lite at none against Interactive Equation Balancer's 1. Physics Formulas Lite also leads on update cadence (every 4 months vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Interactive Equation Balancer sells 1 one-off in-app purchase. Physics Formulas Lite asks for nothing beyond the download.

Physics Formulas Lite ships an update every 4 months, Interactive Equation Balancer every 13 months. The most recent releases landed on September 23, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Physics Formulas Lite | Interactive Equation Balancer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (60 ratings)](https://appshunter.io/ios/app/physics-formulas-lite/id814896887/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free | — |
| Size | 43 MB | 1 MB |
| Requires iOS | 15.1 | **14.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NSC CO. PTY LTD](https://appshunter.io/developer/579522076) | [Prelucent Limited](https://appshunter.io/developer/1558893493) |

## What reviewers say

### Physics Formulas Lite

[App page](https://appshunter.io/ios/app/physics-formulas-lite/id814896887)

Quickly access and reference physics formulas for study and work. Features include calculation tools, multi-language support, a favorites folder, and formula sharing. Search and add custom formulas and tools.

**Highlights:** Formula reference by category, In-app calculation tools, Multi-language support, Favorites folder for quick access, Formula sharing functionality, Searchable formula database, Add custom formulas and tools

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

**In-app purchases:** none


### Interactive Equation Balancer

[App page](https://appshunter.io/ios/app/interactive-equation-balancer/id1573949401)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Enable User Defined Equations | $1.99 | one-time |


## Frequently asked questions

### Is Physics Formulas Lite free?

Physics Formulas Lite is free to download, with no in-app purchases.

### Is Interactive Equation Balancer free?

Interactive Equation Balancer is free to download, with in-app purchases available.

### Do Physics Formulas Lite or Interactive Equation Balancer have ads?

Neither Physics Formulas Lite nor Interactive Equation Balancer shows ads.

### Which is updated more often, Physics Formulas Lite or Interactive Equation Balancer?

Physics Formulas Lite ships an update every 4 months, and Interactive Equation Balancer every 13 months. Most recently, Physics Formulas Lite was updated on September 23, 2026 and Interactive Equation Balancer on October 1, 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.*