# HeatNext vs GravityMark GPU Benchmark

The clearest difference is in-app purchases: GravityMark GPU Benchmark at none against HeatNext's 4. HeatNext's advantage is update cadence (every 2 months vs every 4 months) and iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. HeatNext sells 4 in-app purchases, starting at $1.99 per month. GravityMark GPU Benchmark asks for nothing beyond the download.

HeatNext ships an update every 2 months, GravityMark GPU Benchmark every 4 months. The most recent releases landed on September 15, 2026 and July 22, 2026 respectively.

## The numbers

| Metric | HeatNext | GravityMark GPU Benchmark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (6 ratings)](https://appshunter.io/ios/app/gravitymark-gpu-benchmark/id1595186532/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 44.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | — | Free |
| Size | 32 MB | 91 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nomnio](https://appshunter.io/developer/1440372439) | [Tellusim Technologies Inc.](https://appshunter.io/developer/1595186534) |

## What reviewers say

### HeatNext

[App page](https://appshunter.io/ios/app/heatnext/id1440372440)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Package | $1.99 | per month |
| Advanced Package | $3.99 | per month |
| Plus Package | $18.99 | per year |
| Advanced Package | $37.99 | per year |


### GravityMark GPU Benchmark

[App page](https://appshunter.io/ios/app/gravitymark-gpu-benchmark/id1595186532)

This app showcases modern GPU power by rendering vast real-time scenes. It offloads all scene management and rendering to the GPU, bypassing CPU bottlenecks. Recommended for devices with Apple A14+ and M1+ SoCs.

**Highlights:** Real-time GPU rendering, Massive object quantity, GPU-accelerated scene management, Bypasses CPU bottlenecks, Utilizes astronomical data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HeatNext free?

HeatNext is free to download, with in-app purchases available.

### Is GravityMark GPU Benchmark free?

GravityMark GPU Benchmark is free to download, with no in-app purchases.

### Do HeatNext or GravityMark GPU Benchmark have ads?

Neither HeatNext nor GravityMark GPU Benchmark shows ads.

### Which is updated more often, HeatNext or GravityMark GPU Benchmark?

HeatNext ships an update every 2 months, and GravityMark GPU Benchmark every 4 months. Most recently, HeatNext was updated on September 15, 2026 and GravityMark GPU Benchmark on July 22, 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.*