# Curvature vs MAP Energy

The clearest difference is price: MAP Energy at Free against Curvature's $1.99. MAP Energy also leads on update cadence (every 8 days vs every 5 months). Curvature's advantage is in-app purchases (none vs 2). On rating, review sentiment, ratings volume and ads there is nothing between them.

MAP Energy is free to download; Curvature costs $1.99 up front. MAP Energy sells 2 in-app purchases, starting at $3.99 per month. Curvature asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Curvature against 5.0 for MAP Energy. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Curvature ships an update every 5 months, MAP Energy every 8 days. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Curvature | MAP Energy |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/curvature/id1441050109/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/map-energy/id6756628340/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 8 days** |
| Monetization | Paid | **Freemium** |
| Size | 116 MB | 72 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Steven Wilkinson](https://appshunter.io/developer/1441050108) | [Aptica Limited](https://appshunter.io/developer/1861896570) |

## What reviewers say

### Curvature

[App page](https://appshunter.io/ios/app/curvature/id1441050109)

This app provides advanced tools for calculating and visualizing earth measurements, including curvature, horizon distance, and drop distance. It features a redesigned interface with precision mapping, data persistence, and a knowledge hub with research resources.

**Highlights:** Advanced Earth Calculators, Graphic Result Visualization, Precision Mapping Tools, Data Persistence with SwiftData, Expanded PDF Library, Universal Unit Converter, Save & Export Calculations

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

**In-app purchases:** none


### MAP Energy

[App page](https://appshunter.io/ios/app/map-energy/id6756628340)

Monitor and control your Tesla Powerwall energy usage with real-time data and historical performance tracking. Automate backup reserves and export behavior using intelligent tools.

**Highlights:** Live energy flow monitoring, Historical performance tracking, Automated backup reserve control, Intelligent export behavior automation, Tesla Powerwall integration

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Curvature free?

Curvature costs $1.99, with no in-app purchases.

### Is MAP Energy free?

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

### Which has better reviews, Curvature or MAP Energy?

Curvature and MAP Energy are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Curvature or MAP Energy have ads?

Neither Curvature nor MAP Energy shows ads.

### Which is updated more often, Curvature or MAP Energy?

Curvature ships an update every 5 months, and MAP Energy every 8 days. Most recently, Curvature was updated on November 6, 2026 and MAP Energy on October 30, 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.*