# iPhysik 2 vs Formulas +, your 4 collections

The clearest difference is review sentiment: Formulas +, your 4 collections at 38% against iPhysik 2's 0%. Formulas +, your 4 collections also leads on update cadence (every 4 months vs every 10 months). iPhysik 2's advantage is in-app purchases (none vs 2) and price ($1.99 vs $3.99). On ads, monetization model, device support and iOS requirement there is nothing between them.

iPhysik 2 costs $1.99 and Formulas +, your 4 collections $3.99 up front. Formulas +, your 4 collections sells 2 one-off in-app purchases. iPhysik 2 asks for nothing beyond the download.

iPhysik 2 ships an update every 10 months, Formulas +, your 4 collections every 4 months. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | iPhysik 2 | Formulas +, your 4 collections |
| --- | --- | --- |
| Price | **$1.99** | $3.99 |
| Positive reviews | 0.0% of reviews | **38.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 388 MB | 27 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [lernklick](https://appshunter.io/developer/303776339) | [app-solutions.de](https://appshunter.io/developer/550462608) |

## What reviewers say

### iPhysik 2

[App page](https://appshunter.io/ios/app/iphysik-2/id335601218)

Deepen your understanding of school physics with interactive exercises on mechanics and electricity. Designed by teachers and tested by students, this app offers a focused learning path without distractions, in-app purchases, or ads. It complements textbooks and real experiments, helping you grasp concepts through engaging activities.

**Highlights:** Mechanics and electricity topics, Teacher-developed and student-tested, No in-app purchases, ads, or registration, Offline functionality, Learning and test modes, Interactive exercises and feedback

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

**In-app purchases:** none


### Formulas +, your 4 collections

[App page](https://appshunter.io/ios/app/formulas-plus-your-4-collections/id550462605)

This app consolidates essential formulas for mathematics, physics, chemistry, and technical subjects into a single, easy-to-use application. It features an intelligent search function and provides clear explanations and graphics to aid understanding.

**Highlights:** Consolidated formulas for multiple subjects, Intelligent search function, Explanations and graphics, Calculation function (In-App Purchase), User suggestion feature

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basics Pack | $0.99 | one-time |
| Geometry/Stereometry Pack 1 | $0.99 | one-time |


## Frequently asked questions

### Is iPhysik 2 free?

iPhysik 2 costs $1.99, with no in-app purchases.

### Is Formulas +, your 4 collections free?

Formulas +, your 4 collections costs $3.99, and also offers in-app purchases.

### Do iPhysik 2 or Formulas +, your 4 collections have ads?

Neither iPhysik 2 nor Formulas +, your 4 collections shows ads.

### Which is updated more often, iPhysik 2 or Formulas +, your 4 collections?

iPhysik 2 ships an update every 10 months, and Formulas +, your 4 collections every 4 months. Most recently, iPhysik 2 was updated on October 23, 2026 and Formulas +, your 4 collections on October 14, 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.*