Comparison

DTMF Decoder 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

DTMF Decoder

This utility transforms your iPhone into a DTMF tone decoder. It listens to DTMF tones through the microphone and displays the dialed numbers. Decoded digits can be easily copied to the clipboard for further use.

Highlights
  • DTMF tone decoding
  • Microphone input
  • Displays dialed numbers
  • Copy to clipboard
  • Source code available
Features
Read full description

Turns your iPhone into a simple DTMF decoder. Simply hold the iPhone's microphone near to a clear source of DTMF tones (telephone "Touch Tones") and it will display the numbers being dialed. The decoded digits are also placed into a text area from which you can copy them to the clipboard. See it in action here: https://www.youtube.com/watch?v=l_QD8KFCJPw Source code freely available: https://github.com/veghead/ios-dtmf-decoder

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

DTMF Decoder3 screens
DTMF Dialer Tool3 screens

Verdict

The call

The clearest difference is price: DTMF Dialer Tool at Free against DTMF Decoder's $0.99. DTMF Dialer Tool also leads on rating (4.5 vs 2.5) and update cadence (every 10 days vs every 19 months). DTMF Decoder's advantage is in-app purchases (none vs 1) and ads (none vs shown). On ratings volume 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; DTMF Decoder costs $0.99 up front. DTMF Dialer Tool sells 1 one-off in-app purchase. DTMF Decoder asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DTMF Dialer Tool holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 17 and 13 respectively.

UpkeepUpdate frequency

DTMF Decoder ships an update every 19 months, DTMF Dialer Tool every 10 days. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

Scorecard7 real differences · 3 level
DTMF Decoder versus DTMF Dialer Tool: the parameters behind the verdict, then further details
ParameterDTMF DecoderDTMF Dialer Tool
Price$0.99Free — better
Rating2.5 (17 ratings)4.5 (13 ratings) — better
Positive reviews40.4% of reviews—
Number of ratings17 — better13
Update frequencyEvery 19 monthsEvery 10 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size5 MB5 MB
Age rating4+4+
Developerdreadtech.comKevin Tang

Customer experience

DTMF Decoder

All ratings17 ratings
Positive29.4%
Neutral11.8%
Negative58.8%
Written reviews57 reviews
Positive40.4%
Neutral5.3%
Negative54.4%

DTMF Dialer Tool

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

Bugs and requests

DTMF Decoder

Reported bugs

32 issues
  • Too many "double digits"
  • Generates errors
  • Phonal Tonal generates random (phantom) numbers
  • Never displays anything
  • Nothing would get the app to work
Show 27 more
  • Doesn't pick up tones
  • Doesn't work
  • Won't work with new iPhone update
  • Doesn't detect anything
  • Misses about half of the numbers
  • Poor performance
  • Only usable at full sensitivity, and works poorly then
  • Never identified even one digit
  • Unhappy with latest version
  • On/off switch serves no purpose
  • Decoded box works poorly
  • Doesn't decode hex
  • Doesn't work properly
  • Only gets about half of the numbers correct
  • Erkennung mangelhaft (poor recognition)
  • Couldn't recognise accurately
  • Only got the number 0 each time
  • 使え方 (not usable)
  • Doesn't work
  • Not working as stated
  • Barely works
  • Usually nothing detected
  • Only detected a couple of digits
  • Misses digits when sound is too loud
  • Display is too small
  • Doesn't support scrolling back
  • Stray false digits, especially 1's

Requested features

11 requests
  • Buffering for DTMF better
  • Ability to get this work with new iPhone update
  • History feature
  • Decode hex
  • Ability to decode faster (shorter) tones
Show 6 more
  • More sensitive and flexible detection
  • Translation into multiple languages
  • See each decode on a separate line
  • Continue decoding while app is closed (background operation)
  • DTMF tone generator
  • Shorten app name to "DTMF"

DTMF Dialer Tool

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

DTMF Decoder

No in-app purchases

1 purchases

DTMF Dialer Tool

One-time1
  • DTMF Dialer Pro$4.99

Questions

Is DTMF Decoder free?
DTMF Decoder costs $0.99, 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, DTMF Decoder or DTMF Dialer Tool?
DTMF Dialer Tool is rated higher. DTMF Decoder averages 2.5 out of 5 from 17 ratings, while DTMF Dialer Tool averages 4.5 from 13 ratings.
Do DTMF Decoder or DTMF Dialer Tool have ads?
DTMF Dialer Tool shows ads; DTMF Decoder does not.
Which is updated more often, DTMF Decoder or DTMF Dialer Tool?
DTMF Decoder ships an update every 19 months, and DTMF Dialer Tool every 10 days. Most recently, DTMF Decoder was updated on October 27, 2026 and DTMF Dialer Tool on October 26, 2026.

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