249+ iOS apps curated and reviewed
Out of 249+ dtmf decoder apps on iOS, 16 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $0.99 | 2.5★ (17) | No | No | Aug 2026 |
| 2 |  | Free | 5.0★ (7) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.5★ (13) | Yes | No | Aug 2026 |
| 4 |  | Free | 1.9★ (9) | No | No | May 2026 |
| 5 |  | $2.99 | 3.4★ (5) | No | No | Jul 2026 |
| 6 |  | Free | 1.0★ (5) | No | No | May 2026 |
| 7 |  | Free | 5.0★ (1) | No | No | May 2026 |
| 8 |  | Free | — | No | No | Aug 2026 |
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.
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.
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.
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.
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.
Decode SMD resistors with this practical tool. It supports three-digit, four-digit, and EIA-96 encoded resistor values, providing quick and accurate identification.
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.
Instantly decode sensor "ZIP codes" from your device's LCD menu. Access a complete list of active parameters and their values without needing a live connection to your sensor.
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.
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.
