# Vector Calculator Plus vs Power Grid Map

The clearest difference is price: Power Grid Map at Free against Vector Calculator Plus's $2.99. Power Grid Map also leads on rating (5.0 vs 4.0) and update cadence (daily vs every 43 months). Vector Calculator Plus's advantage is ads (none vs shown) and iOS requirement (13 vs 18.0). On ratings volume, in-app purchases and device support there is nothing between them.

Power Grid Map 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.

Power Grid Map holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Vector Calculator Plus ships an update every 43 months, Power Grid Map daily. The most recent releases landed on July 9, 2026 and July 6, 2026 respectively.

## The numbers

| Metric | Vector Calculator Plus | Power Grid Map |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/vector-calculator-plus/id1630864948/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/power-grid-map/id6740839186/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 43 months | **Daily** |
| Monetization | Paid | **Ad-supported** |
| Size | 1 MB | 60 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) | [FreshBizOpps, LLC](https://appshunter.io/developer/1506039373) |

## 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


### Power Grid Map

[App page](https://appshunter.io/ios/app/power-grid-map/id6740839186)

Visualize electricity infrastructure across the United States, including power plants and daily energy mix changes. Learn about the energy infrastructure in your vicinity with this free, comprehensive tool.

**Highlights:** Visualize US electricity infrastructure, Locate power plants, Observe daily energy mix changes, Learn about local infrastructure, Updated hourly with public data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vector Calculator Plus free?

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

### Is Power Grid Map free?

Power Grid Map is free to download, with no in-app purchases.

### Which has better reviews, Vector Calculator Plus or Power Grid Map?

Power Grid Map is rated higher. Vector Calculator Plus averages 4.0 out of 5 from 1 ratings, while Power Grid Map averages 5.0 from 1 ratings.

### Do Vector Calculator Plus or Power Grid Map have ads?

Power Grid Map shows ads; Vector Calculator Plus does not.

### Which is updated more often, Vector Calculator Plus or Power Grid Map?

Vector Calculator Plus ships an update every 43 months, and Power Grid Map daily. Most recently, Vector Calculator Plus was updated on July 9, 2026 and Power Grid Map on July 6, 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.*