# SpringCalc vs Volume Shader

The clearest difference is update cadence: SpringCalc at every 2 weeks against Volume Shader's monthly. 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.

SpringCalc ships an update every 2 weeks, Volume Shader monthly. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | SpringCalc | Volume Shader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (11 ratings)](https://appshunter.io/ios/app/volume-shader/id6802010333/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 16 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sui Fai Law](https://appshunter.io/developer/1889201616) | [Shahid Ali](https://appshunter.io/developer/6802010335) |

## What reviewers say

### SpringCalc

[App page](https://appshunter.io/ios/app/springcalc/id6770431388)

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

**In-app purchases:** none


### Volume Shader

[App page](https://appshunter.io/ios/app/volume-shader/id6802010333)

Explore complex 3D fractal visualizations rendered natively on your iPhone or iPad. Test your device's GPU performance and check system states like thermal and battery.

**Highlights:** Native Metal GPU rendering, Mandelbulb ray marching, Device performance testing, System state monitoring, Interactive 3D exploration, Touch, haptic, and speaker checks

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

**In-app purchases:** none


## Frequently asked questions

### Is SpringCalc free?

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

### Is Volume Shader free?

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

### Do SpringCalc or Volume Shader have ads?

Both SpringCalc and Volume Shader show ads.

### Which is updated more often, SpringCalc or Volume Shader?

SpringCalc ships an update every 2 weeks, and Volume Shader monthly. Most recently, SpringCalc was updated on October 28, 2026 and Volume Shader on October 29, 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.*