# SPM 4D Series vs ARious

The clearest difference is update cadence: SPM 4D Series at fortnightly against ARious's monthly. SPM 4D Series also leads on iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

SPM 4D Series ships an update fortnightly, ARious monthly. The most recent releases landed on September 28, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SPM 4D Series | ARious |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/arious/id1524970506/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Free |
| Size | 348 MB | 623 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Virtuocity Systems Sdn Bhd](https://appshunter.io/developer/1105959461) | [Sahi](https://appshunter.io/developer/1246801663) |

## What reviewers say

### SPM 4D Series

[App page](https://appshunter.io/ios/app/spm-4d-series-physics/id1105961397)

**Features:** macOS Compatibility

**In-app purchases:** none


### ARious

[App page](https://appshunter.io/ios/app/arious/id1524970506)

Explore the wonders of science through immersive augmented reality experiences. This app allows users to relive historical scientific experiments and interact with 3D models of cells, energy conversions, and space missions.

**Highlights:** Augmented reality exploration, 3D scientific experiments, Interactive cell models, Space mission simulations, Energy conversion visualization, Anatomy exploration

**In-app purchases:** none


## Frequently asked questions

### Is SPM 4D Series free?

SPM 4D Series is free to download, with no in-app purchases.

### Is ARious free?

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

### Do SPM 4D Series or ARious have ads?

Neither SPM 4D Series nor ARious shows ads.

### Which is updated more often, SPM 4D Series or ARious?

SPM 4D Series ships an update fortnightly, and ARious monthly. Most recently, SPM 4D Series was updated on September 28, 2026 and ARious on October 11, 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.*