# CTS vs WOPQ Record

The clearest difference is in-app purchases: CTS at none against WOPQ Record's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WOPQ Record sells 2 in-app purchases, starting at $4.99 per month. CTS asks for nothing beyond the download.

## The numbers

| Metric | CTS | WOPQ Record |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cts-cincinnati-test-systems/id1033877646/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | — |
| Monetization | Free | — |
| Size | 2 MB | 3 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Cincinnati Test Systems](https://appshunter.io/developer/1033877645) | [Shabbir Ahmed](https://appshunter.io/developer/1083166021) |

## What reviewers say

### CTS

[App page](https://appshunter.io/ios/app/cts-cincinnati-test-systems/id1033877646)

Calculate leak test cycle times using leak rate, volume, and pressure drop. This tool also offers conversions for various units of volume, pressure, and leak rates. It's designed for professionals in leak testing.

**Highlights:** Leak test cycle time calculation, Leak rate, volume, pressure drop variables, Volume conversions, Pressure conversions, Bubble to leak rate conversions, Length and area conversions

**Features:** macOS Compatibility

**In-app purchases:** none


### WOPQ Record

[App page](https://appshunter.io/ios/app/wopq-record/id6478030461)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Auto-Renewing Subs | $4.99 | per month |
| Annual Auto-Renewing Subs | $9.99 | per year |


## Frequently asked questions

### Is CTS free?

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

### Is WOPQ Record free?

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

### Do CTS or WOPQ Record have ads?

Neither CTS nor WOPQ Record shows ads.

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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.*