# Factor Electronics V66 vs Sound Architect +

The clearest difference is ads: Factor Electronics V66 at none against Sound Architect +'s shown. Factor Electronics V66 also leads on iOS requirement (11.0 vs 14.0). Sound Architect +'s advantage is update cadence (every 2 days vs every 11 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Factor Electronics V66 ships an update every 11 months, Sound Architect + every 2 days. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Factor Electronics V66 | Sound Architect + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.3 (3 ratings)](https://appshunter.io/ios/app/sound-architect-plus/id6744467469/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 2 days** |
| Monetization | — | Ad-supported |
| Size | 9 MB | 10 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [7087306 Canada ltd](https://appshunter.io/developer/1184882197) | [Ajaykumar P Bhindi](https://appshunter.io/developer/1808390625) |

## What reviewers say

### Factor Electronics V66

[App page](https://appshunter.io/ios/app/factor-electronics-v66/id1212113355)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Architect +

[App page](https://appshunter.io/ios/app/sound-architect-plus/id6744467469)

Shape your audio experience with this app. Create custom sound profiles, adjust bass, treble, and spatial audio for your device and headphones. Log listening sessions with notes and enjoy offline functionality for complete sonic control.

**Highlights:** Create immersive sound profiles, Boost audio clarity, Tailor presets to device and headphones, Log listening sessions with notes, Fine-tune bass, treble, and spatial audio, Offline functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Factor Electronics V66 free?

Factor Electronics V66 is free to download, with no in-app purchases.

### Is Sound Architect + free?

Sound Architect + is free to download, with no in-app purchases.

### Do Factor Electronics V66 or Sound Architect + have ads?

Sound Architect + shows ads; Factor Electronics V66 does not.

### Which is updated more often, Factor Electronics V66 or Sound Architect +?

Factor Electronics V66 ships an update every 11 months, and Sound Architect + every 2 days. Most recently, Factor Electronics V66 was updated on October 10, 2026 and Sound Architect + on October 8, 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.*