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.
DTMF Decoder by dreadtech.com



202+ iOS apps curated and reviewed
Out of 202+ dtmf decoder apps on iOS, 14 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.



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.



Learn to identify the unique tones associated with dialing phone numbers. This application helps users understand the distinct beeps that correspond to each digit on a keypad.


This utility decodes DTMF tones, even in noisy conditions. It stores decoded numbers for easy actions like dialing, creating contacts, or copying to your clipboard for further lookup.




Decode Morse code audio into text in real-time. This app automatically detects signal frequency and speed, displaying decoded text instantly. Simply allow microphone access and place your device near the audio source.


This application uses your device's microphone to capture and decode dual-tone multi-frequency (DTMF) signals in real-time. It displays the decoded numbers instantly on your screen, making it a useful tool for professionals and tech enthusiasts.


This application decodes Morse code from your microphone, acting as a practice tool to verify your keying accuracy. It offers advanced features like BPF and FFT decoders with automatic frequency and gain control, allowing for fine-tuning of reception parameters.


This app generates DTMF tones for interacting with landline phone systems and other devices that use these tones. It allows users to play tones directly from their device's speaker and offers features like saving favorite sequences.


Encode and decode DTMF signals using your device's microphone or keypad. Play back tone sequences with adjustable settings, and save them for easy recall. Explore various tone systems, including trunk control and coin signals, for educational and utility purposes.


This utility allows you to dial phone numbers from your iPhone contacts on landline or pay phones. Simply select a contact, hold your device near the mouthpiece, and initiate the call.


Easily convert text to and from the Base64 number system. This free utility allows you to encode or decode text quickly, with options to copy or download the results.


This app allows you to dial your iPhone contacts as DTMF tones through your iPhone's speaker. You can then use these tones with your landline phone to make calls. It offers features to adjust contact numbers for correct landline dialing, including international and area code formatting.


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Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.




Play virtually any video or audio file directly on your iOS device without conversion. Stream media from various online sources and manage your files with a built-in browser and file manager. Offers advanced playback controls and subtitle customization.


This app plays virtually any video and audio format without conversion. Stream media from various network sources and cloud services. Offers extensive subtitle support and playback controls for a personalized viewing experience.


Stream live channels and on-demand content with advanced playback features. Manage favorites, resume watching, and customize subtitles and audio tracks for a seamless viewing experience. Supports all video formats and screen resolutions.


Stream and manage music, pictures, and videos from various digital media servers on your local network. Control playback devices and create custom playlists. Supports multitasking for seamless content enjoyment.


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