# Open Lap vs SubZone

The clearest difference is price: Open Lap at Free against SubZone's $4.99. Open Lap also leads on rating (5.0 vs 4.5) and review sentiment (100% vs 80%). SubZone's advantage is update cadence (every 5 weeks vs every 13 months) and ratings volume (22 vs 4). On ads, in-app purchases and device support there is nothing between them.

Open Lap is free to download; SubZone costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Open Lap holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SubZone has 22 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Open Lap's written reviews are positive against 80% of SubZone's.

Open Lap ships an update every 13 months, SubZone every 5 weeks. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Open Lap | SubZone |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/open-lap/id1448048406/reviews)** | [4.5 (22 ratings)](https://appshunter.io/ios/app/subzone/id6446367701/reviews) |
| Number of ratings | 4 | **22** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 5 weeks** |
| Monetization | **Free** | Paid |
| Size | 23 MB | 22 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Philipp Anné](https://appshunter.io/developer/965549566) | [Sonic Baume LTD](https://appshunter.io/developer/1677577779) |

## What reviewers say

### Open Lap

[App page](https://appshunter.io/ios/app/open-lap/id1448048406)

Manage your slot car races with this app, offering practice, qualifying, and race modes. Customize car settings, track intermediate times, and receive voice alerts for events like low fuel. Supports Carrera DIGITAL 124/132 systems.

**Highlights:** Race management modes (practice, qualifying, race), Individual car settings (speed, brake, fuel), Intermediate/sector time tracking, Personalized voice alerts, Pace car and yellow flag control, Bluetooth connectivity via Carrera AppConnect

**Features:** macOS Compatibility

**In-app purchases:** none


### SubZone

[App page](https://appshunter.io/ios/app/subzone/id6446367701)

Optimize your subwoofer's placement for superior sound quality. This app uses advanced acoustic simulations to find the ideal spot in your room, eliminating boomy or weak bass. Achieve clear, deep bass for music and movies scientifically and affordably.

**Highlights:** Rectangular room support, Acoustic simulation, Zone performance scoring, Optimum zone recommendation, Frequency response plotting, Multiple listening position optimization

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

**In-app purchases:** none


## Frequently asked questions

### Is Open Lap free?

Open Lap is free to download, with no in-app purchases.

### Is SubZone free?

SubZone costs $4.99, with no in-app purchases.

### Which has better reviews, Open Lap or SubZone?

Open Lap is rated higher. Open Lap averages 5.0 out of 5 from 4 ratings, while SubZone averages 4.5 from 22 ratings.

### Do Open Lap or SubZone have ads?

Neither Open Lap nor SubZone shows ads.

### Which is updated more often, Open Lap or SubZone?

Open Lap ships an update every 13 months, and SubZone every 5 weeks. Most recently, Open Lap was updated on June 1, 2026 and SubZone on September 9, 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.*