# DR.Osci.HD vs Deltarium

The clearest difference is device support: DR.Osci.HD at 3 against Deltarium's 1. DR.Osci.HD also leads on iOS requirement (9.1 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DR.Osci.HD | Deltarium |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | — |
| Monetization | Free | — |
| Size | 2 MB | 2 MB |
| Requires iOS | **9.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Roth](https://appshunter.io/developer/356650850) | [Evan Turner](https://appshunter.io/developer/6795006208) |

## What reviewers say

### DR.Osci.HD

[App page](https://appshunter.io/ios/app/droscihd/id1003071526)

Explore physics concepts with a spring pendulum simulation. Manipulate parameters like damping, spring flexibility, and mass to observe oscillations. Record and export displacement graphs for deeper analysis.

**Highlights:** Spring pendulum simulation, Adjustable damping, spring flexibility, and mass, Gravity simulation, Record displacement over time, Export graphs to photo library

**Features:** macOS Compatibility

**In-app purchases:** none


### Deltarium

[App page](https://appshunter.io/ios/app/deltarium/id6795006206)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DR.Osci.HD free?

DR.Osci.HD is free to download, with no in-app purchases.

### Is Deltarium free?

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

### Do DR.Osci.HD or Deltarium have ads?

Neither DR.Osci.HD nor Deltarium shows ads.

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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.*