# Spectrolite vs FrontDepth View

The clearest difference is rating: Spectrolite at 4.8 against FrontDepth View's 4.3. Spectrolite also leads on ratings volume (51 vs 4) and review sentiment (83% vs 75%). FrontDepth View's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Spectrolite sells 1 one-off in-app purchase. FrontDepth View asks for nothing beyond the download.

Spectrolite holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Spectrolite has 51 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of Spectrolite's written reviews are positive against 75% of FrontDepth View's.

Spectrolite ships an update every 8 months, FrontDepth View every 2 months. The most recent releases landed on September 23, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | Spectrolite | FrontDepth View |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (51 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/frontdepth-view/id1583468252/reviews) |
| Number of ratings | **51** | 4 |
| Positive reviews | **83.3% of reviews** | 75.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 4 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Waxing Wave](https://appshunter.io/developer/392942046) | [HAN WEI WANG](https://appshunter.io/developer/928406183) |

## What reviewers say

### Spectrolite

[App page](https://appshunter.io/ios/app/spectrolite/id1480240180)

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

**Highlights:** Real-time spectrogram visualization, Constant-Q, linear, and mel frequency scales, Full human hearing frequency range, Intuitive touch panning and zooming, Adjustable gain, Q, and other parameters, Pro version: grids, scales, spectrum view, tap-to-measure

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $4.99 | one-time |


### FrontDepth View

[App page](https://appshunter.io/ios/app/frontdepth-view/id1583468252)

Capture real-time images from your device's TrueDepth camera, especially in low light. Explore your face from different angles, switch between 2D and 3D views, and save 3D photos. Browse your saved 3D face images in a dedicated folder.

**Highlights:** Real-time TrueDepth camera feed, Low-light image capture, Adjustable view range slider, Pan display to explore face angles, Toggle between 3D and 2D views, Save 3D face photos, Browse saved 3D photos

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spectrolite free?

Spectrolite is free to download, with in-app purchases available.

### Is FrontDepth View free?

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

### Which has better reviews, Spectrolite or FrontDepth View?

Spectrolite is rated higher. Spectrolite averages 4.8 out of 5 from 51 ratings, while FrontDepth View averages 4.3 from 4 ratings.

### Do Spectrolite or FrontDepth View have ads?

Neither Spectrolite nor FrontDepth View shows ads.

### Which is updated more often, Spectrolite or FrontDepth View?

Spectrolite ships an update every 8 months, and FrontDepth View every 2 months. Most recently, Spectrolite was updated on September 23, 2026 and FrontDepth View on July 7, 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.*