# Quantum Aqua vs Spectra Hub

The clearest difference is ads: Quantum Aqua at none against Spectra Hub's shown. Quantum Aqua also leads on update cadence (every 4 weeks vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, 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.

Quantum Aqua ships an update every 4 weeks, Spectra Hub every 3 months. The most recent releases landed on January 30, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Quantum Aqua | Spectra Hub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Size | 187 MB | 33 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jordan Kambanis](https://appshunter.io/developer/1744286099) | [Marine Spectra Pty Ltd](https://appshunter.io/developer/1826997426) |

## What reviewers say

### Quantum Aqua

[App page](https://appshunter.io/ios/app/quantum-aqua/id6502040629)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spectra Hub

[App page](https://appshunter.io/ios/app/spectra-hub/id6748683837)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Aqua free?

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

### Is Spectra Hub free?

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

### Do Quantum Aqua or Spectra Hub have ads?

Spectra Hub shows ads; Quantum Aqua does not.

### Which is updated more often, Quantum Aqua or Spectra Hub?

Quantum Aqua ships an update every 4 weeks, and Spectra Hub every 3 months. Most recently, Quantum Aqua was updated on January 30, 2026 and Spectra Hub on September 6, 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.*