# VcfLookup vs 2iyo

The clearest difference is review sentiment: VcfLookup at 100% against 2iyo's 0%. VcfLookup also leads on update cadence (every 3 weeks vs every 84 months) and iOS requirement (11.1 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

VcfLookup ships an update every 3 weeks, 2iyo every 84 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | VcfLookup | 2iyo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/vcflookup/id1319259850/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 84 months |
| Monetization | Free | Free |
| Size | 9 MB | 16 MB |
| Requires iOS | **11.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kah Seng Teo](https://appshunter.io/developer/1319259849) | [Administrapolis SL.](https://appshunter.io/developer/1464986872) |

## 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


### 2iyo

[App page](https://appshunter.io/ios/app/2iyo/id1486014461)

This platform automates and integrates home and community management elements to boost efficiency. It offers unique integration with property managers for homeowner communities.

**Highlights:** Home management automation, Community management integration, Property manager integration, Increased efficiency, Platform automation

**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 2iyo free?

2iyo is free to download, with no in-app purchases.

### Do VcfLookup or 2iyo have ads?

Neither VcfLookup nor 2iyo shows ads.

### Which is updated more often, VcfLookup or 2iyo?

VcfLookup ships an update every 3 weeks, and 2iyo every 84 months. Most recently, VcfLookup was updated on October 29, 2026 and 2iyo on October 24, 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.*