# Auto Audio vs dtac OneCall

The clearest difference is price: dtac OneCall at Free against Auto Audio's $0.99. Auto Audio's advantage is update cadence (every 4 weeks vs every 13 months) and iOS requirement (12.0 vs 15.5). On ads, in-app purchases and device support there is nothing between them.

dtac OneCall is free to download; Auto Audio costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Auto Audio ships an update every 4 weeks, dtac OneCall every 13 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Auto Audio | dtac OneCall |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dtac-onecall/id1525846336/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 13 months |
| Monetization | — | Free |
| Size | 4 MB | 215 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [方 沈](https://appshunter.io/developer/882296318) | [TRUE CORPORATION PUBLIC COMPANY LIMITED](https://appshunter.io/developer/447041660) |

## What reviewers say

### Auto Audio

[App page](https://appshunter.io/ios/app/auto-audio/id884502711)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### dtac OneCall

[App page](https://appshunter.io/ios/app/dtac-onecall/id1525846336)

This cloud-based phone service transforms your devices into a virtual business PBX. It allows you to stay connected for business communications from anywhere, on any device.

**Highlights:** Cloud-based phone service, Virtual business PBX, Mobile and desktop integration, Stay connected anywhere, Full business communication features

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


## Frequently asked questions

### Is Auto Audio free?

Auto Audio costs $0.99, with no in-app purchases.

### Is dtac OneCall free?

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

### Do Auto Audio or dtac OneCall have ads?

Neither Auto Audio nor dtac OneCall shows ads.

### Which is updated more often, Auto Audio or dtac OneCall?

Auto Audio ships an update every 4 weeks, and dtac OneCall every 13 months. Most recently, Auto Audio was updated on October 26, 2026 and dtac OneCall on October 24, 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.*