DTMF Decoder vs RepeaterPhone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- DTMF tone decoding
- Microphone input
- Displays dialed numbers
- Copy to clipboard
- Source code available
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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
RepeaterPhone
Connect your mobile device to EchoLink or AllStarLink radio nodes, repeaters, and conferences. Features a push-to-talk interface, node directory search, and favorites for quick access. Supports Bluetooth headsets and includes a watch extension for convenient control.
- Push-to-talk interface
- EchoLink/AllStarLink node connection
- Node directory search
- Favorite nodes
- Bluetooth headset support
- Watch extension control
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Note: This app is for licensed Amateur Radio operators only. RepeaterPhone provides the ability to connect your mobile device to EchoLink or AllStarLink nodes, including repeaters and conferences. Push to talk today! You will need an account with either the EchoLink or AllStarLink networks. Please see https://www.echolink.org or https://www.allstarlink.org, respectively, for more details - Push-to-talk interface - Browse or search the directory for available nodes - Mark favorites with a star for quick access - Supports various audio devices, including Bluetooth headsets - Fully integrated into your phone's recent call system - Includes a watch extension for dialing favorites and controlling push-to-talk - Sharing your device with a licensed family member? Switch accounts easily
Screenshots
Verdict
The clearest difference is rating: RepeaterPhone at 4.4 against DTMF Decoder's 2.5. RepeaterPhone also leads on review sentiment (71% vs 39%) and update cadence (every 2 months vs every 19 months). DTMF Decoder's advantage is price ($0.99 vs $7.99) and iOS requirement (11.0 vs 15.0). On ads, in-app purchases and monetization model 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 Decoder costs $0.99 and RepeaterPhone $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
RepeaterPhone holds the better App Store score, 4.4 against 2.5. That said, the two scores are not equally well evidenced: RepeaterPhone has 89 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 39% of DTMF Decoder's written reviews are positive against 71% of RepeaterPhone's.
DTMF Decoder ships an update every 19 months, RepeaterPhone every 2 months. The most recent releases landed on November 6, 2026 and November 14, 2026 respectively.
| Parameter | DTMF Decoder | RepeaterPhone |
|---|---|---|
| Price | $0.99 — better | $7.99 |
| Rating | 2.5 (17 ratings) | 4.4 (89 ratings) — better |
| Positive reviews | 39.0% of reviews | 71.2% of reviews — better |
| Number of ratings | 17 | 89 — better |
| Update frequency | Every 19 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | — | #126 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | dreadtech.com | Weston Bustraan |
Customer experience
DTMF Decoder
RepeaterPhone
User reviews
DTMF Decoder
From 17 App Store ratingsWhat we love
- 👍 Works as advertised (for some)
- 👍 Handy for professionals
- 👍 Useful for troubleshooting
- 👍 Good value for money (for some)
- 👍 Can pick up speed dial tones
Room to improve
- 🐛 Too many "double digits" / errors
- 🐛 Doesn't work well
- 🐛 Never displays anything
- 🐛 Nothing would get it to work
- 🐛 Piece of crap doesn’t work
RepeaterPhone
From 89 App Store ratingsWhat we love
- 👍 Excellent audio quality
- 👍 Works well for Allstar and EchoLink
- 👍 Great for travel/remote access
- 👍 Intuitive and easy to use interface
- 👍 Good value for the price
Room to improve
- 🐛 Frequent crashes
- 🐛 Volume too low/audio issues
- 🐛 Connection issues with some nodes/networks
- 🐛 App closes when screen locks/in background
- 🐛 Authentication/login failures
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 moreShow fewer
- 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 moreShow fewer
- 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"
RepeaterPhone
Reported bugs
18 issues- Authentication failed on setup
- App crashes with latest iOS
- iPhone 16 Pro will not connect
- Many Allstar nodes reject connection attempts
- Crashes sometimes, interrupting calls
Show 13 moreShow fewer
- Failed to load list of stations
- Randomly disconnects
- Hubs error out with 'Rejected: No authority found'
- Crashes under iOS 17.6
- App doesn’t work on Echolink
- Connection closes when screen locks
- Receive volume very low after iOS 16
- Audio seems less than fully baked, low volume
- Trying to change speakers mutes app
- Private nodes stay keyed after unkeying
- App reads 'Account not found'
- Callsign beginning with a number times out at 45secs
- Supermon stops reporting during local private node connection
Requested features
14 requests- DTMF presets on dial page
- Apple CarPlay integration
- CQ function inclusion
- Organize nodes by location/group chat
- See total people connected before connecting
Show 9 moreShow fewer
- Search for nodes by location
- More sorting for repeater list
- Last heard map/list
- Listen-only mode
- Dialer for Allstar codes (*72 etc.)
- Android app with PTT
- Macros to hound and disconnect nodes
- Map of AllStar node location
- Adjustable mic level slider
In-app purchases
DTMF Decoder
No in-app purchases
RepeaterPhone
No in-app purchases
