# Vector Calculator Plus vs SpeedChecker Engineer

The clearest difference is price: SpeedChecker Engineer at Free against Vector Calculator Plus's $2.99. SpeedChecker Engineer also leads on update cadence (every 9 months vs every 43 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

SpeedChecker Engineer is free to download; Vector Calculator Plus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Vector Calculator Plus ships an update every 43 months, SpeedChecker Engineer every 9 months. The most recent releases landed on July 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Vector Calculator Plus | SpeedChecker Engineer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/vector-calculator-plus/id1630864948/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 9 months** |
| Monetization | Paid | — |
| Size | 1 MB | 26 MB |
| Requires iOS | 13 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Speedchecker Ltd](https://appshunter.io/developer/1191311636) |

## 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

**In-app purchases:** none


### SpeedChecker Engineer

[App page](https://appshunter.io/ios/app/speedchecker-engineer/id6446782246)

**In-app purchases:** none


## Frequently asked questions

### Is Vector Calculator Plus free?

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

### Is SpeedChecker Engineer free?

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

### Do Vector Calculator Plus or SpeedChecker Engineer have ads?

Neither Vector Calculator Plus nor SpeedChecker Engineer shows ads.

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

Vector Calculator Plus ships an update every 43 months, and SpeedChecker Engineer every 9 months. Most recently, Vector Calculator Plus was updated on July 9, 2026 and SpeedChecker Engineer on September 11, 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.*