Comparison

QTH Grid Square Locator vs SmartMTR for FlexRadio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

QTH Grid Square Locator

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
Read full description

QTH Locator is a practical tool designed for amateur radio operators, allowing them to easily calculate their location using the Maidenhead grid system. This app is specially designed for radio enthusiasts who need precise and reliable results for location calculations. Whether you are participating in a radio contest or engaging in DX communication, QTH Locator provides accurate GPS-based results and works even in offline mode. Main Features: - Real-Time GPS Location Calculation: The app utilizes your device's GPS to accurately determine your Maidenhead grid locator in real time. - Efficient and Accurate: Instantly calculates your grid locator to enhance communication with other radio operators. - Offline Functionality: Calculate your QTH locator even without an internet connection, ideal for remote locations. - Optimized for Amateur Radio Activities: Perfect for radio contests, field operations, and DX communications. - Interactive Map View: Visualize your grid locator directly on an integrated map for an enhanced user experience. About Amateur Radio Amateur radio, also known as ham radio, is a popular hobby where licensed users communicate across various radio frequencies. The QTH locator system plays a vital role in this field, helping operators accurately calculate their position, making it easier to connect with others worldwide, especially during contests and DX activities. Whether you're an experienced operator or a beginner, calculating your QTH location is crucial for effective communication. Download QTH Locator today and enhance your amateur radio experience with accurate and efficient location calculation tools.

About

SmartMTR for FlexRadio

Transform your iOS device into a precise S-meter and control panel for FlexRadio transceivers. Monitor signal levels, adjust DSP filters, and control radio functions with intuitive gestures. Includes a demo mode for exploration.

Highlights
  • Precision S-meter with arc-band indicator
  • Dual-slice display for simultaneous monitoring
  • TX meters for RF Power, SWR, and Compression
  • Intuitive swipe gestures for radio control
  • Comprehensive DSP filter adjustments
  • Demo mode for exploration
Features
Read full description

Turn your iPhone or iPad into a precision S-meter and control panel for your FlexRadio 6000 or 8000 series transceiver. SmartMTR connects to your radio over the local network and displays real-time signal levels on a sweeping arc indicator with smooth ballistic animation. Monitor two slices at once, control your radio with intuitive swipe gestures, and fine-tune DSP filters — all from your iOS device. PRECISION S-METER - Arc-band indicator with realistic ballistics — fast attack, slow decay - Dual-slice display: Slice A and Slice B shown simultaneously - S1 to S9+60 dB scale with accurate dBm readout - Signal extremes tracking with adjustable time window - 30-second signal history chart TX METERS - RF Power gauge (120W or 600W scale) - SWR meter - Compression meter - Mic level meter RADIO CONTROL - Tune frequency with swipe gestures — MHz, kHz, and Hz - Switch modes: CW, LSB, USB, AM, FM, NFM - Select RX and TX antennas - Adjust RX filter width - Band stacking with per-slice memory DSP FILTERS - Squelch and volume control - AGC mode and threshold - Noise blankers: NB, WNB - Noise reduction: NR, NRL, NRS, NRF, RNN - Notch filters: ANF, ANFL, ANFT WORKS WITH - FlexRadio 6000 or 8000 series Requires a FlexRadio transceiver on the same local network. Try the built-in demo mode to explore the app without a radio. Terms of Use: https://smartmtr.net/terms.html Privacy Policy: https://smartmtr.net/privacy-policy.html

Screenshots

QTH Grid Square Locator3 screens
SmartMTR for FlexRadio4 screens

Verdict

The call

The clearest difference is in-app purchases: QTH Grid Square Locator at none against SmartMTR for FlexRadio's 1. QTH Grid Square Locator also leads on update cadence (daily vs every 5 weeks) and iOS requirement (18.0 vs 26.2). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SmartMTR for FlexRadio sells 1 in-app purchase, starting at $2.99 per month. QTH Grid Square Locator asks for nothing beyond the download.

UpkeepUpdate frequency

QTH Grid Square Locator ships an update daily, SmartMTR for FlexRadio every 5 weeks. The most recent releases landed on October 24, 2026 and October 1, 2026 respectively.

Scorecard4 real differences · 6 level
QTH Grid Square Locator versus SmartMTR for FlexRadio: the parameters behind the verdict, then further details
ParameterQTH Grid Square LocatorSmartMTR for FlexRadio
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings—1 — better
Update frequencyDaily — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS18.0 — better26.2
Further details — not scored
Size3 MB3 MB
Age rating4+4+
DeveloperUgur AltinsoyDariusz Socha

Customer experience

QTH Grid Square Locator

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SmartMTR for FlexRadio

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

QTH Grid Square Locator

No in-app purchases

1 purchases

SmartMTR for FlexRadio

Subscriptions1
  • SmartMTR7 Days trial$2.991 Month

Questions

Is QTH Grid Square Locator free?
QTH Grid Square Locator is free to download, with no in-app purchases.
Is SmartMTR for FlexRadio free?
SmartMTR for FlexRadio is free to download, with in-app purchases available.
Do QTH Grid Square Locator or SmartMTR for FlexRadio have ads?
Neither QTH Grid Square Locator nor SmartMTR for FlexRadio shows ads.
Which is updated more often, QTH Grid Square Locator or SmartMTR for FlexRadio?
QTH Grid Square Locator ships an update daily, and SmartMTR for FlexRadio every 5 weeks. Most recently, QTH Grid Square Locator was updated on October 24, 2026 and SmartMTR for FlexRadio on October 1, 2026.

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