# CTS vs Neko Dictionary

The clearest difference is update cadence: Neko Dictionary at fortnightly against CTS's every 8 months. CTS's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CTS ships an update every 8 months, Neko Dictionary fortnightly. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | CTS | Neko Dictionary |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 2 MB | 91 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cincinnati Test Systems](https://appshunter.io/developer/1033877645) | [Shanghai Yidudu Technology Co., Ltd.](https://appshunter.io/developer/1862062047) |

## 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


### Neko Dictionary

[App page](https://appshunter.io/ios/app/neko-dictionary/id6756643217)

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

**In-app purchases:** none


## Frequently asked questions

### Is CTS free?

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

### Is Neko Dictionary free?

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

### Do CTS or Neko Dictionary have ads?

Neither CTS nor Neko Dictionary shows ads.

### Which is updated more often, CTS or Neko Dictionary?

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