Comparison

GLTSO 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

GLTSO

Features
Read full description

GLTSO – Espace Membres est l’application officielle réservée aux membres de la GLTSO. Elle centralise l’accès à votre passeport, aux actualités et aux activités de la communauté. Fonctionnalités Passeport membre Consultez votre passeport GLTSO directement dans l’application. Actualités Restez informé des dernières informations et communications. Activités Découvrez les activités à venir et suivez la vie de la GLTSO. Accès réservé L’accès à l’application est strictement réservé aux membres de la GLTSO.

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

GLTSO3 screens
SmartMTR for FlexRadio4 screens

Verdict

The call

The clearest difference is in-app purchases: GLTSO at none against SmartMTR for FlexRadio's 1. GLTSO also leads on iOS requirement (15.1 vs 26.2). On price, update cadence, 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. GLTSO asks for nothing beyond the download.

UpkeepUpdate frequency

GLTSO ships an update monthly, SmartMTR for FlexRadio every 5 weeks. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

Scorecard2 real differences · 8 level
GLTSO versus SmartMTR for FlexRadio: the parameters behind the verdict, then further details
ParameterGLTSOSmartMTR for FlexRadio
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyMonthly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better26.2
Further details — not scored
Size37 MB3 MB
Age rating17+4+
Developeremmanuel manentDariusz Socha

In-app purchases

None

GLTSO

No in-app purchases

1 purchases

SmartMTR for FlexRadio

Subscriptions1
  • SmartMTR7 Days trial$2.991 Month

Questions

Is GLTSO free?
GLTSO 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 GLTSO or SmartMTR for FlexRadio have ads?
Neither GLTSO nor SmartMTR for FlexRadio shows ads.
Which is updated more often, GLTSO or SmartMTR for FlexRadio?
GLTSO ships an update monthly, and SmartMTR for FlexRadio every 5 weeks. Most recently, GLTSO was updated on October 2, 2026 and SmartMTR for FlexRadio on October 1, 2026.

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