# Quantum Shield vs Solar Potential Tracker

The clearest difference is in-app purchases: Solar Potential Tracker at none against Quantum Shield's 4. Quantum Shield's advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Quantum Shield sells 4 in-app purchases, starting at $3.99 per month. Solar Potential Tracker asks for nothing beyond the download.

Quantum Shield ships an update every 4 days, Solar Potential Tracker every 4 weeks. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Quantum Shield | Solar Potential Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 4 weeks |
| Size | 24 MB | 67 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quantum Secure Labs SL](https://appshunter.io/developer/1895611135) | [Zia Ur Rahman](https://appshunter.io/developer/1529429081) |

## What reviewers say

### Quantum Shield

[App page](https://appshunter.io/ios/app/quantum-shield-anti-scam/id6764045374)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Mensual | $3.99 | per month |
| Shield Mensual | $8.99 | per month |
| Plus Anual | $25.00 | per year |
| Shield Anual | $69.00 | per year |


### Solar Potential Tracker

[App page](https://appshunter.io/ios/app/solar-potential-tracker/id6769672233)

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

**In-app purchases:** none


## Frequently asked questions

### Is Quantum Shield free?

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

### Is Solar Potential Tracker free?

Solar Potential Tracker is free to download, with no in-app purchases.

### Do Quantum Shield or Solar Potential Tracker have ads?

Solar Potential Tracker shows ads; Quantum Shield does not.

### Which is updated more often, Quantum Shield or Solar Potential Tracker?

Quantum Shield ships an update every 4 days, and Solar Potential Tracker every 4 weeks. Most recently, Quantum Shield was updated on October 11, 2026 and Solar Potential Tracker on October 10, 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.*