Comparison

DTMFdec vs Onion Browser

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

Head to head
About

DTMFdec

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.

Highlights
  • Sensitive DTMF tone decoding
  • Adapts to noisy environments
  • Stores decoded numbers
  • Dial number directly
  • Create new contact
  • Add number to existing contact
  • Copy to pasteboard
Features
Read full description

DTMFdec is a highly sensitive DTMF-tone decoder which dynamically adapts to noisy or quiet environments. Decoded numbers are stored in a list, from where you can perform actions like: • dial number • new contact with number • add number to existing contact • copy to pasteboard Especially the "copy to pasteboard" feature is useful when you want to lookup the number in your local phone directory or just google for it. DTMFdec is able to decode the following digits: 1234567890*#ABCD Watch a demo video on the web site https://dtmfdecoder.app/demo/

About

Onion Browser

This app provides a secure and private way to browse the internet using the Tor network. It protects your privacy from trackers, secures your traffic on public Wi-Fi, and allows access to .onion sites. It also offers features to block scripts and clear cookies automatically.

Highlights
  • Browse internet over Tor
  • Protect privacy from website tracking
  • Secure traffic on insecure networks
  • Access .onion sites
  • Block scripts
  • Automatically clear cookies and tabs
Features
Read full description

Onion Browser is the original free and open-source Tor-powered web browser for iOS. Onion Browser helps you access the internet with more safety and privacy, and no extra cost to you. “The best Tor-related offering on iOS right now is Onion Browser” - The Daily Dot, October 14, 2015. Featured in: The New York Times, The Guardian, Salon, TechCrunch, Gizmodo, Boing Boing, Lifehacker, Macworld, The Daily Dot, & others. FEATURES: • Browse the internet over Tor: - Protect your privacy from website tracking - Secure your traffic from insecure wireless networks and ISPs - Access .onion sites that are only accessible over Tor. • Fight online tracking: block scripts and automatically clear cookies and tabs, based on your preferences. • And more privacy-enhancing features! DISCLAIMERS: - Web browsing is much slower than through a normal web browser or a VPN because your traffic is encrypted and relayed through the Tor network. - Onion Browser might not work on networks with advanced network restrictions. If the app does not connect, try using bridges (or a different type of bridge), force-quit, and then restart the app. - Use of Onion Browser is at your own risk; remember that sensitive data does not always belong on a mobile device. ** Onion Browser is free and open-source software. You can read more about Onion Browser and how to support development of Tor on iOS by visiting onionbrowser.com **

Screenshots

DTMFdec2 screens
Onion Browser4 screens

Verdict

The call

The clearest difference is price: Onion Browser at Free against DTMFdec's $2.99. Onion Browser also leads on update cadence (monthly vs every 25 months) and ratings volume (2.1K vs 5). DTMFdec's advantage is in-app purchases (none vs 3) and iOS requirement (12.4 vs 15.0). On rating, review sentiment, ads 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

Onion Browser is free to download; DTMFdec costs $2.99 up front. Onion Browser sells 3 one-off in-app purchases. DTMFdec asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DTMFdec holds the better App Store score, 3.4 against 3.2. That said, the two scores are not equally well evidenced: Onion Browser has 2.1K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 33% of DTMFdec's written reviews are positive against 41% of Onion Browser's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DTMFdec ships an update every 25 months, Onion Browser monthly. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
DTMFdec versus Onion Browser: the parameters behind the verdict, then further details
ParameterDTMFdecOnion Browser
Price$2.99Free — better
Rating3.4 (5 ratings) — better3.2 (2.1K ratings)
Positive reviews33.3% of reviews41.2% of reviews — better
Number of ratings52.1K — better
Update frequencyEvery 25 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.4 — better15.0
Further details — not scored
Size1 MB83 MB
Age rating4+17+
DeveloperJérémie BlaserMike Tigas

Customer experience

DTMFdec

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews15 reviews
Positive33.3%
Neutral6.7%
Negative60.0%

Onion Browser

All ratings2,120 ratings
Positive52.5%
Neutral8.2%
Negative39.3%
Written reviews425 reviews
Positive41.2%
Neutral7.1%
Negative51.8%

Bugs and requests

DTMFdec

Not enough reviews yet to summarise bugs or requests.

Onion Browser

Reported bugs

4 issues
  • Fails to connect to Tor network
  • Crashes or freezes when switching apps
  • Compatibility issues with newer iOS versions
  • Inability to disable JavaScript completely

Requested features

4 requests
  • Add option to disable JavaScript
  • Improve tab management and browsing experience
  • Integrate with more privacy-focused search engines
  • Allow setting custom default search engine

In-app purchases

None

DTMFdec

No in-app purchases

3 purchases

Onion Browser

One-time3
  • Small Onion Browser Tip$0.99
  • Medium Onion Browser Tip$4.99
  • Large Onion Browser Tip$9.99

Questions

Is DTMFdec free?
DTMFdec costs $2.99, with no in-app purchases.
Is Onion Browser free?
Onion Browser is free to download, with in-app purchases available.
Which has better reviews, DTMFdec or Onion Browser?
DTMFdec is rated higher. DTMFdec averages 3.4 out of 5 from 5 ratings, while Onion Browser averages 3.2 from 2.1K ratings.
Do DTMFdec or Onion Browser have ads?
Neither DTMFdec nor Onion Browser shows ads.
Which is updated more often, DTMFdec or Onion Browser?
DTMFdec ships an update every 25 months, and Onion Browser monthly. Most recently, DTMFdec was updated on October 11, 2026 and Onion Browser on October 12, 2026.

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