SmartSDR™ vs DTMF Dialer Tool
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
DTMF Dialer Tool
Generate and manage DTMF tones for dialing and testing phone numbers. Features include a modern keypad, karaoke-style playback, and favorites management for quick access to frequently used numbers. Ideal for telephony professionals and radio operators.
- Modern DTMF keypad
- Karaoke-style playback
- Favorites management
- Pause support
- Reliable tone generation
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Effortlessly dial, test, and manage phone numbers with DTMF tones—perfect for telephony professionals, ham radio operators, and anyone who needs reliable tone dialing! Note: This app does not call. It only produces DTMF tones which may be used to control a call. Features: - Modern DTMF Keypad: Tap or hold to generate accurate DTMF tones for any number, including special characters and pauses. - Karaoke-Style Playback: Watch each digit highlight as it plays, making it easy to follow along and verify sequences. - Favorites Management: Save, name, and organize your most-used numbers for quick access. Edit or delete favorites anytime. - Pause Support: Insert pauses (",") for complex dialing sequences. - Reliable Tone Generation: Uses precise DTMF frequencies for compatibility with phone systems, PBXs, and radio repeaters. DTMF Dialer Pro (one-time purchase): - Unlimited favorites (3 favorites free; Pro unlocks unlimited) - A–D tones for the full 16-key DTMF pad - Custom tone length and pause timing - Export favorites as CSV - Remove ads Perfect For: - Accessing voicemail, conference bridges, or automated phone systems - Testing and troubleshooting telephony equipment - Amateur radio (ham) operators - Anyone needing a fast, accurate DTMF dialer Why Choose DTMF Dialer Tool? - Intuitive, modern design - Lightning-fast and accurate tone playback - Powerful favorites and editing features Download DTMF Dialer Tool today and make dialing smarter, faster, and easier!
Screenshots
Verdict
The clearest difference is price: DTMF Dialer Tool at Free against SmartSDR™'s $79.99. DTMF Dialer Tool also leads on rating (4.5 vs 4.3) and iOS requirement (15.6 vs 17.6). SmartSDR™'s advantage is ads (none vs shown) and ratings volume (132 vs 13). On update cadence, in-app purchases 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
DTMF Dialer Tool is free to download; SmartSDR™ costs $79.99 up front. SmartSDR™ sells 10 one-off in-app purchases and DTMF Dialer Tool sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
DTMF Dialer Tool holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: SmartSDR™ has 132 ratings behind it against 13, so its average is the more settled of the two.
SmartSDR™ ships an update every 2 weeks, DTMF Dialer Tool every 10 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | SmartSDR™ | DTMF Dialer Tool |
|---|---|---|
| Price | $79.99 | Free — better |
| Rating | 4.3 (132 ratings) | 4.5 (13 ratings) — better |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 132 — better | 13 |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 57 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcus Roskosch | Kevin Tang |
Customer experience
SmartSDR™
DTMF Dialer Tool
In-app purchases
SmartSDR™
- Region 1,2 and 3 Band PlanFree
- DX-Cluster$5.99
- Griffin PowerMate BT Controller support$5.99
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- MidiController support$5.99
- Logbook Add-on$5.99
- Flic 2 Button support$5.99
- Voice Macros$5.99
- 4O3A Genius Device support$9.99
- FT8$19.99
- FlexRadio Device access$64.99
DTMF Dialer Tool
- DTMF Dialer Pro$4.99









