# Spectrolite vs Auto Architect

The clearest difference is monetization model: Spectrolite at free with in-app purchases against Auto Architect's subscription. Spectrolite also leads on ratings volume (51 vs 3) and iOS requirement (15.6 vs 18.5). Auto Architect's advantage is update cadence (every 4 days vs every 8 months) and review sentiment (100% vs 83%). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Spectrolite sells 1 one-off in-app purchase and Auto Architect sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Auto Architect holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Spectrolite has 51 ratings behind it against 3, 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 100% of Auto Architect's.

Spectrolite ships an update every 8 months, Auto Architect every 4 days. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Spectrolite | Auto Architect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (51 ratings)](https://appshunter.io/ios/app/spectrolite/id1480240180/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/auto-architect/id6761701097/reviews)** |
| Number of ratings | **51** | 3 |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 1 MB | 2 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Waxing Wave](https://appshunter.io/developer/392942046) | [Gena Harris](https://appshunter.io/developer/1890980959) |

## 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 |


### Auto Architect

[App page](https://appshunter.io/ios/app/auto-architect/id6761701097)

Plan your dream car build with this app. It helps you explore upgrade paths, manage modifications, and create a structured plan for your vehicle based on your budget and performance goals.

**Highlights:** Vehicle build planning, Upgrade path exploration, Modification organization, Budget and performance goal integration, Structured car build plans

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $4.99 | per month |
| Elite Plan | $9.99 | per month |
| Architect Plan | $19.99 | per month |


## Frequently asked questions

### Is Spectrolite free?

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

### Is Auto Architect free?

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

### Which has better reviews, Spectrolite or Auto Architect?

Auto Architect is rated higher. Spectrolite averages 4.8 out of 5 from 51 ratings, while Auto Architect averages 5.0 from 3 ratings.

### Do Spectrolite or Auto Architect have ads?

Neither Spectrolite nor Auto Architect shows ads.

### Which is updated more often, Spectrolite or Auto Architect?

Spectrolite ships an update every 8 months, and Auto Architect every 4 days. Most recently, Spectrolite was updated on September 23, 2026 and Auto Architect on September 10, 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.*