# iPhysik 2 vs Re

The clearest difference is review sentiment: Re at 50% against iPhysik 2's 0%. Re also leads on price (Free vs $1.99) and update cadence (every 2 months vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

Re is free to download; iPhysik 2 costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iPhysik 2 ships an update every 10 months, Re every 2 months. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | iPhysik 2 | Re |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 388 MB | 260 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [lernklick](https://appshunter.io/developer/303776339) | [Brandenburgische Technische Universitaet Cottbus-Senftenberg](https://appshunter.io/developer/626792264) |

## 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


### Re

[App page](https://appshunter.io/ios/app/reconstruction/id1479008884)

Step into a post-apocalyptic future where you join a network to save the world. Engage in quests, develop future technologies, and analyze your progress. Your contributions are vital to restoring balance.

**Highlights:** Quests in 4 game areas, Avatar customization, Environment analysis, Progress tracking, Background information videos, Glossary

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iPhysik 2 free?

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

### Is Re free?

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

### Do iPhysik 2 or Re have ads?

Neither iPhysik 2 nor Re shows ads.

### Which is updated more often, iPhysik 2 or Re?

iPhysik 2 ships an update every 10 months, and Re every 2 months. Most recently, iPhysik 2 was updated on October 8, 2026 and Re 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.*