# RST Scope Pro vs QTH Grid Square Locator

The clearest difference is price: QTH Grid Square Locator at Free against RST Scope Pro's $1.99. QTH Grid Square Locator also leads on update cadence (daily vs every 6 days). RST Scope Pro's advantage is iOS requirement (15.6 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

QTH Grid Square Locator is free to download; RST Scope Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RST Scope Pro ships an update every 6 days, QTH Grid Square Locator daily. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | RST Scope Pro | QTH Grid Square Locator |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | **Daily** |
| Monetization | — | Free |
| Size | 1 MB | 3 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [koji kamogawa](https://appshunter.io/developer/1488210713) | [Ugur Altinsoy](https://appshunter.io/developer/1721426307) |

## What reviewers say

### RST Scope Pro

[App page](https://appshunter.io/ios/app/rst-scope-pro/id1550939327)

**In-app purchases:** none


### QTH Grid Square Locator

[App page](https://appshunter.io/ios/app/qth-grid-square-locator/id6738007254)

Calculate your Maidenhead grid locator accurately using your device's GPS. This tool is designed for amateur radio operators, offering real-time calculations and offline functionality for contests and DX communication.

**Highlights:** Real-time GPS location calculation, Maidenhead grid system support, Offline functionality, Interactive map view, Optimized for amateur radio

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RST Scope Pro free?

RST Scope Pro costs $1.99, with no in-app purchases.

### Is QTH Grid Square Locator free?

QTH Grid Square Locator is free to download, with no in-app purchases.

### Do RST Scope Pro or QTH Grid Square Locator have ads?

Neither RST Scope Pro nor QTH Grid Square Locator shows ads.

### Which is updated more often, RST Scope Pro or QTH Grid Square Locator?

RST Scope Pro ships an update every 6 days, and QTH Grid Square Locator daily. Most recently, RST Scope Pro was updated on November 3, 2026 and QTH Grid Square Locator on November 4, 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.*