# VcfLookup vs Kitten

The clearest difference is review sentiment: VcfLookup at 100% against Kitten's 31%. VcfLookup also leads on rating (5.0 vs 4.0) and ads (none vs shown). Kitten's advantage is update cadence (every 4 days vs every 3 weeks) and ratings volume (26 vs 1). On price, 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.

VcfLookup holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Kitten has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of VcfLookup's written reviews are positive against 31% of Kitten's.

VcfLookup ships an update every 3 weeks, Kitten every 4 days. The most recent releases landed on October 5, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | VcfLookup | Kitten |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vcflookup/id1319259850/reviews)** | [4.0 (26 ratings)](https://appshunter.io/ios/app/kitten-speed-network-tool/id6738271363/reviews) |
| Number of ratings | 1 | **26** |
| Positive reviews | **100.0% of reviews** | 31.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 32 MB |
| Requires iOS | **11.1** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kah Seng Teo](https://appshunter.io/developer/1319259849) | [航 李](https://appshunter.io/developer/6781514603) |

## What reviewers say

### VcfLookup

[App page](https://appshunter.io/ios/app/vcflookup/id1319259850)

This app provides a quick way to find the Volume Correction Factor (VCF) for marine fuel oil calculations. It references ISO 8217 Specifications, commonly used for marine fuel bunkers on ships globally.

**Highlights:** Volume Correction Factor calculation, Marine fuel oil calculations, ISO 8217 Specifications reference, Handy tool for shipboard use

**Features:** macOS Compatibility

**In-app purchases:** none


### Kitten

[App page](https://appshunter.io/ios/app/kitten-speed-network-tool/id6738271363)

This practical software offers several compact tools for text manipulation and file handling. Features include removing leading zeros, counting blank lines, URL encoding, and identifying paper weight and MIME types.

**Highlights:** Remove leading zeros from text, Count blank lines in text/files, URL encoding, Measure paper weight and thickness, MIME type formatting

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

**In-app purchases:** none


## Frequently asked questions

### Is VcfLookup free?

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

### Is Kitten free?

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

### Which has better reviews, VcfLookup or Kitten?

VcfLookup is rated higher. VcfLookup averages 5.0 out of 5 from 1 ratings, while Kitten averages 4.0 from 26 ratings.

### Do VcfLookup or Kitten have ads?

Kitten shows ads; VcfLookup does not.

### Which is updated more often, VcfLookup or Kitten?

VcfLookup ships an update every 3 weeks, and Kitten every 4 days. Most recently, VcfLookup was updated on October 5, 2026 and Kitten on October 16, 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.*