# SCT Calculator 3 vs DOSS AUDIO

The clearest difference is price: DOSS AUDIO at Free against SCT Calculator 3's $0.99. DOSS AUDIO also leads on update cadence (every 10 days vs every 8 months). SCT Calculator 3's advantage is iOS requirement (13.0 vs 16). On ads, in-app purchases and device support there is nothing between them.

DOSS AUDIO is free to download; SCT Calculator 3 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SCT Calculator 3 ships an update every 8 months, DOSS AUDIO every 10 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SCT Calculator 3 | DOSS AUDIO |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[1.5 (2 ratings)](https://appshunter.io/ios/app/doss-audio/id6761585032/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 4 MB | 30 MB |
| Requires iOS | **13.0** | 16 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timothy Alan Verrelli](https://appshunter.io/developer/1761433304) | [Wonders Technology Co.,Ltd](https://appshunter.io/developer/393352744) |

## What reviewers say

### SCT Calculator 3

[App page](https://appshunter.io/ios/app/sct-calculator-3/id6615060947)

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

**In-app purchases:** none


### DOSS AUDIO

[App page](https://appshunter.io/ios/app/doss-audio/id6761585032)

Control your DOSS Bluetooth speakers with this app. Connect, pair two speakers for stereo sound, adjust EQ, and manage lighting. Discover brand content and access customer support.

**Highlights:** Bluetooth speaker connection, TWS stereo pairing, Customizable EQ settings, Lighting mode and brightness control, Brand content discovery, After-sales feedback portal, Healing audio content

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

**In-app purchases:** none


## Frequently asked questions

### Is SCT Calculator 3 free?

SCT Calculator 3 costs $0.99, with no in-app purchases.

### Is DOSS AUDIO free?

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

### Do SCT Calculator 3 or DOSS AUDIO have ads?

Neither SCT Calculator 3 nor DOSS AUDIO shows ads.

### Which is updated more often, SCT Calculator 3 or DOSS AUDIO?

SCT Calculator 3 ships an update every 8 months, and DOSS AUDIO every 10 days. Most recently, SCT Calculator 3 was updated on October 25, 2026 and DOSS AUDIO on October 31, 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.*