Comparison

SDR vs DTMF Dialer Tool

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

Head to head
About

SDR

Control your Icom transceiver remotely or locally from your iPhone. Operate in all modes, log QSOs, and utilize integrated digital modes like FT8/FT4 and SSTV. No extra hardware is needed for global access.

Highlights
  • Remote transceiver operation
  • All mode control
  • Auto logging logbook
  • Integrated FT8/FT4 tool
  • Integrated SSTV receiver
  • Integrated CW decoder and keyer
  • DX-Cluster integration
Read full description

Software Defined Radio Client for Icom Transceivers and your iPhone SDR-Control Mobile is a full featured iPhone App to operate your Icom Transceiver at home or from around the world without additional Hard- or Software. Important: This App requires one of the following Icom Transceivers: IC-705, IC-7610, IC-9700, IC-7760 or the IC-R8600 Receiver or the new IC-7300 MK2 FACTS AND FEATURES: ■ Native iOS 26 app, backward compatible to iOS 17 ■ Compatible with any iPhone ■ Complete operation of your Icom Transceiver in all modes ■ Use the App local or to remote access of your Transceiver from any place without additional Hard- or Software ■ Logbook with auto logging, ADIF Im-/Export ■ UDP Log submission when using external logging software ■ Integrated full featured FT8 / FT4 Tool ■ Integrated SSTV receiver (NEW) ■ Integrated CW Decoder ■ Integrated CW Keyer ■ DX-Cluster integration ■ Call sign lookup integrated ■ Displays Calls on Map with heading and distance information ■ And much more... WHAT YOU NEED: - An Icom IC-705, IC-7610, IC-9700 or IC-7760 Transceiver or IC-R8600 Receiver or the new IC-7300 MK2 - The Transceiver needs to be connected to your Network (WiFi or LAN) - No USB cable needed or supported - An iPhone that runs at least iOS 17 Find out more here: https://ham-radio-apps.com Read the Manual: http://go-to.me/sdrcontrol-mobile-manual

About

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.

Highlights
  • Modern DTMF keypad
  • Karaoke-style playback
  • Favorites management
  • Pause support
  • Reliable tone generation
Features
Read full description

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

SDR4 screens
DTMF Dialer Tool3 screens

Verdict

The call

The clearest difference is price: DTMF Dialer Tool at Free against SDR's $44.99. DTMF Dialer Tool also leads on iOS requirement (15.6 vs 17.6). SDR's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, update cadence 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

DTMF Dialer Tool is free to download; SDR costs $44.99 up front. DTMF Dialer Tool sells 1 one-off in-app purchase. SDR asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for SDR against 4.5 for DTMF Dialer Tool. Both are backed by a comparable volume of ratings — 64 and 13 respectively.

UpkeepUpdate frequency

SDR ships an update every 2 weeks, DTMF Dialer Tool every 10 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
SDR versus DTMF Dialer Tool: the parameters behind the verdict, then further details
ParameterSDRDTMF Dialer Tool
Price$44.99Free — better
Rating4.5 (64 ratings)4.5 (13 ratings)
Positive reviews84.1% of reviews—
Number of ratings64 — better13
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidAd-supported — better
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size47 MB5 MB
Age rating4+4+
DeveloperMarcus RoskoschKevin Tang

Customer experience

SDR

All ratings64 ratings
Positive89.1%
Neutral0.0%
Negative10.9%
Written reviews69 reviews
Positive84.1%
Neutral5.8%
Negative10.1%

DTMF Dialer Tool

All ratings13 ratings
Positive84.6%
Neutral7.7%
Negative7.7%

Bugs and requests

SDR

Reported bugs

12 issues
  • Dialogs do not scale with larger text setting
  • Frequency display overlaps buttons
  • FT8 decoding issues (lower signal levels than WSJTX)
  • App crashes and leaves radio in transmit
  • Logbook export not functional after update
Show 7 more
  • Function button for horizontal scrolling not fully displayed
  • FT8 decode is useless and unreliable
  • Messed up radio, requiring reset
  • RX audio unusable outside home network (prior to 1.5.1)
  • Struggles with audio RX packets on remote cellular networks
  • Cannot work over mobile data with certain carriers (EE)
  • FT8 alerts sound but don't display

Requested features

14 requests
  • Develop for IC-7800
  • CarPlay support
  • Apple Watch add-on
  • Windows version
  • JS8call support
Show 9 more
  • More digital modes
  • Display memory bank names
  • Initiate memory scan from app
  • WSPR implementation
  • Tool for WSPR
  • More FT8/FT4 features (e.g., setting transmit frequency directly in FT8 view)
  • Send image to unit
  • KISS TNC support
  • Control digital modes (reflectors, etc.)

DTMF Dialer Tool

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

SDR

No in-app purchases

1 purchases

DTMF Dialer Tool

One-time1
  • DTMF Dialer Pro$4.99

Questions

Is SDR free?
SDR costs $44.99, with no in-app purchases.
Is DTMF Dialer Tool free?
DTMF Dialer Tool is free to download, with in-app purchases available.
Which has better reviews, SDR or DTMF Dialer Tool?
SDR and DTMF Dialer Tool are both rated 4.5 out of 5 on the App Store, from 64 and 13 ratings respectively.
Do SDR or DTMF Dialer Tool have ads?
DTMF Dialer Tool shows ads; SDR does not.
Which is updated more often, SDR or DTMF Dialer Tool?
SDR ships an update every 2 weeks, and DTMF Dialer Tool every 10 days. Most recently, SDR was updated on October 15, 2026 and DTMF Dialer Tool on October 16, 2026.

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