# BNStopwatch vs Engine Builder Pro

The clearest difference is in-app purchases: Engine Builder Pro at none against BNStopwatch's 1. Engine Builder Pro also leads on ads (none vs shown) and update cadence (every 2 days vs every 4 days). On price and device support there is nothing between them.

Both are free to download. BNStopwatch sells 1 one-off in-app purchase. Engine Builder Pro asks for nothing beyond the download.

BNStopwatch ships an update every 4 days, Engine Builder Pro every 2 days. The most recent releases landed on October 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BNStopwatch | Engine Builder Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (33 ratings)](https://appshunter.io/ios/app/bnstopwatch/id1082090048/reviews)** | — |
| Number of ratings | **33** | — |
| Positive reviews | 57.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 22 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | **iPhone, iPad, Apple TV, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MOLABO](https://appshunter.io/developer/409682566) | [Gemma Beames](https://appshunter.io/developer/6811020787) |

## What reviewers say

### BNStopwatch

[App page](https://appshunter.io/ios/app/bnstopwatch/id1082090048)

This digital stopwatch features a large, clear display with oversized numbers for easy readability from afar. It supports lap time recording, color customization, and is available across multiple Apple devices, making it ideal for various timing needs.

**Highlights:** Large, clear display, Lap time recording, Color customization, Multi-device support (iPhone, iPad, Apple Watch), Ideal for group activities and sports

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade | $0.99 | one-time |


### Engine Builder Pro

[App page](https://appshunter.io/ios/app/engine-builder-pro/id6813993112)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BNStopwatch free?

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

### Is Engine Builder Pro free?

Engine Builder Pro is free to download, with no in-app purchases.

### Do BNStopwatch or Engine Builder Pro have ads?

BNStopwatch shows ads; Engine Builder Pro does not.

### Which is updated more often, BNStopwatch or Engine Builder Pro?

BNStopwatch ships an update every 4 days, and Engine Builder Pro every 2 days. Most recently, BNStopwatch was updated on October 29, 2026 and Engine Builder Pro on October 5, 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.*