# DTMF Decoder vs Avia

The clearest difference is price: Avia at Free against DTMF Decoder's $0.99. Avia also leads on update cadence (monthly vs every 19 months). DTMF Decoder's advantage is iOS requirement (11.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Avia is free to download; DTMF Decoder costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DTMF Decoder ships an update every 19 months, Avia monthly. The most recent releases landed on September 23, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | DTMF Decoder | Avia |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.5 (17 ratings)](https://appshunter.io/ios/app/dtmf-decoder/id306195275/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 40.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | Free | — |
| Size | 5 MB | 23 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [dreadtech.com](https://appshunter.io/developer/306195278) | [Retailogists](https://appshunter.io/developer/1837956372) |

## What reviewers say

### DTMF Decoder

[App page](https://appshunter.io/ios/app/dtmf-decoder/id306195275)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Avia

[App page](https://appshunter.io/ios/app/avia-store-analytics/id6752028451)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is DTMF Decoder free?

DTMF Decoder costs $0.99, with no in-app purchases.

### Is Avia free?

Avia is free to download, with no in-app purchases.

### Do DTMF Decoder or Avia have ads?

Neither DTMF Decoder nor Avia shows ads.

### Which is updated more often, DTMF Decoder or Avia?

DTMF Decoder ships an update every 19 months, and Avia monthly. Most recently, DTMF Decoder was updated on September 23, 2026 and Avia on August 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*