# Vector Calculator Plus vs HTMLKit

The clearest difference is price: HTMLKit at Free against Vector Calculator Plus's $2.99. HTMLKit also leads on update cadence (every 5 months vs every 43 months). Vector Calculator Plus's advantage is in-app purchases (none vs 1) and iOS requirement (13 vs 18.0). On ads and device support there is nothing between them.

HTMLKit is free to download; Vector Calculator Plus costs $2.99 up front. HTMLKit sells 1 one-off in-app purchase. Vector Calculator Plus asks for nothing beyond the download.

Vector Calculator Plus ships an update every 43 months, HTMLKit every 5 months. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Vector Calculator Plus | HTMLKit |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/vector-calculator-plus/id1630864948/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 1 MB | 6 MB |
| Requires iOS | **13** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [FebesGoods Studio](https://appshunter.io/developer/597141225) |

## What reviewers say

### Vector Calculator Plus

[App page](https://appshunter.io/ios/app/vector-calculator-plus/id1630864948)

This app simplifies vector addition for students and educators. It allows for quick calculations of multiple vectors, visualizing the results with generated graphs. Users can customize graph elements and save images for later use.

**Highlights:** Instant vector calculation, Add multiple vectors by x, y, magnitude, or angle, Generate vector images, Save vector images to camera roll, Customize graph display options, Set background color for graphs

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

**In-app purchases:** none


### HTMLKit

[App page](https://appshunter.io/ios/app/htmlkit/id6759825001)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


## Frequently asked questions

### Is Vector Calculator Plus free?

Vector Calculator Plus costs $2.99, with no in-app purchases.

### Is HTMLKit free?

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

### Do Vector Calculator Plus or HTMLKit have ads?

Neither Vector Calculator Plus nor HTMLKit shows ads.

### Which is updated more often, Vector Calculator Plus or HTMLKit?

Vector Calculator Plus ships an update every 43 months, and HTMLKit every 5 months. Most recently, Vector Calculator Plus was updated on October 11, 2026 and HTMLKit on October 5, 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.*