Comparison

SmartSDR™ vs Paylo.app

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

Head to head
About

SmartSDR™

Control your FlexRadio SDR device from your iPad or iPhone. Access nearly all features of the desktop client, including digital modes, signal analysis, and remote operation via SmartLink. Requires compatible FlexRadio hardware.

Highlights
  • FT8 and FT4 support
  • SSTV TX and RX
  • APRS TX and RX
  • CW Decoder and keyer
  • Weather Fax decoder
  • Slice and Panadapter management
  • SmartLink remote access
Features
Read full description

The Official FlexRadio Systems® Client for iPhone and iPad. Your FLEX-6000, FLEX-8000 or Aurora radio, at home over Wi-Fi or from anywhere with SmartLink™. Made by a ham, for hams, with personal support included. Works with any radio firmware: SmartSDR v1, v2, v3 and v4, including the newest release. WORKS WITH ■ FLEX-6300, FLEX-6400, FLEX-6400M, FLEX-6500, FLEX-6600, FLEX-6600M, FLEX-6700 ■ FLEX-8400, FLEX-8400M, FLEX-8600, FLEX-8600M ■ AU-510, AU-510M, AU-520, AU-520M (Aurora) OPERATE ■ Panadapter and waterfall with band plan, DX Cluster, POTA and FT8 spots ■ Slices, filters, TNFs, memories, profiles (TX, microphone, global), transverters, equalizers ■ SmartLink™ remote access, MultiFlex™, SmartControl, APD / SmartSignal™ ■ CWX with side tone and live sending, software paddle and straight key ■ Compact floating panels: CWX, Tune Stack, macros, Command Bar, DTMF, RIT / XIT ■ Firmware Update of your radio, right from the app ■ Your iPhone or iPad as microphone and speaker; the radio keeps playing in the background ■ Ready for iPhone Duo, iPad split screen and Apple Vision Pro MODES ■ FT8-Improved with AutoAnswer and AutoCQ, the classic FT8 and the FT8 Skimmer ■ JS8 keyboard chat ■ CW with decoder, keyer, ESM and CW keyboard ■ Speech: incoming voice transcribed and translated, your typed text sent as speech ■ SSTV, HF-Fax, APRS and WSPR FT8-Improved, JS8, Speech and WSPR need iOS 26. TOOLS ■ Logbook with ADIF import and export, shared via iCloud with SDR-Control, FT-Control, TS-Control and K4-Control, on iPhone, iPad and Mac ■ DX Cluster, POTA, PSK Reporter, Call Lookup, Band Plan, Network Stats ■ 4O3A Genius devices (Power, Tuner, Antenna and Rotator Genius), Ultra Beam antennas ■ HomeKit: switch your radio, antenna switches and other devices ■ Controllers: MIDI, CTR2, HaliKey, Pryme, Flic, PowerMate MADE BY A HAM Made by Marcus, DL8MRE, who has been developing apps for Apple devices since 2009 and uses this app every day in his own shack. Personal online support and a detailed manual are included. Updates with new modes and features are free: no subscription, no in-app purchases. WHAT YOU NEED ■ One of the radios above, on your network ■ An iPhone or iPad with iOS 18 or later ■ For SmartLink™: a radio set up for SmartLink (SmartSDR v2 or later) Manual: https://go-to.me/smartsdr-manual More apps: https://ham-radio-apps.com

About

Paylo.app

Features
Read full description

Paylo brings expense splitting, shared budgeting, and everyday planning into one app. Use Split to share group costs, track who owes what, and settle up. Use Budget to manage a shared household budget with income, spending, and category tracking. Use Shopping Lists to plan groceries and errands, track purchased and skipped items, and keep lists on your device with optional account sync. Use Travel Lists to prepare for trips with ready-made templates, item notes, estimated costs, and optional community templates. Across Shopping and Travel, add many items at once from pasted text, files, or photos. Lists are designed for quick editing, local save first, and background sync when cloud sync is enabled.

Screenshots

SmartSDR™4 screens
Paylo.app4 screens

Verdict

The call

The clearest difference is price: Paylo.app at Free against SmartSDR™'s $79.99. Paylo.app also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.5 vs 17.6). SmartSDR™'s advantage is in-app purchases (none vs 1). On 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

Paylo.app is free to download; SmartSDR™ costs $79.99 up front. Paylo.app sells 1 one-off in-app purchase. SmartSDR™ asks for nothing beyond the download.

UpkeepUpdate frequency

SmartSDR™ ships an update every 2 weeks, Paylo.app every 5 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
SmartSDR™ versus Paylo.app: the parameters behind the verdict, then further details
ParameterSmartSDR™Paylo.app
Price$79.99Free — better
Rating4.2 (132 ratings) — better—
Positive reviews76.7% of reviews—
Number of ratings132 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.5 — better
Further details — not scored
Size57 MB80 MB
Age rating4+4+
DeveloperMarcus Roskoschahmet ates

In-app purchases

None

SmartSDR™

No in-app purchases

1 purchases

Paylo.app

One-time1
  • Remove Ads.$0.99

Questions

Is SmartSDR™ free?
SmartSDR™ costs $79.99, with no in-app purchases.
Is Paylo.app free?
Paylo.app is free to download, with in-app purchases available.
Do SmartSDR™ or Paylo.app have ads?
Neither SmartSDR™ nor Paylo.app shows ads.
Which is updated more often, SmartSDR™ or Paylo.app?
SmartSDR™ ships an update every 2 weeks, and Paylo.app every 5 days. Most recently, SmartSDR™ was updated on November 6, 2026 and Paylo.app on October 30, 2026.

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