# CTS vs WPQ Record

The clearest difference is in-app purchases: CTS at none against WPQ Record's 2. WPQ Record's advantage is update cadence (fortnightly vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WPQ Record sells 2 in-app purchases, starting at $7.99 per month. CTS asks for nothing beyond the download.

CTS ships an update every 8 months, WPQ Record fortnightly. The most recent releases landed on September 17, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | CTS | WPQ 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 | **Fortnightly** |
| Monetization | Free | — |
| Size | 2 MB | 5 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


### WPQ Record

[App page](https://appshunter.io/ios/app/wpq-record/id6461217142)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Auto-Renewing Subs | $7.99 | per month |
| Annual Auto-Renewing Subs | $14.99 | per year |


## Frequently asked questions

### Is CTS free?

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

### Is WPQ Record free?

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

### Do CTS or WPQ Record have ads?

Neither CTS nor WPQ Record shows ads.

### Which is updated more often, CTS or WPQ Record?

CTS ships an update every 8 months, and WPQ Record fortnightly. Most recently, CTS was updated on September 17, 2026 and WPQ Record on May 17, 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.*