# Inverter vs Polar

The clearest difference is in-app purchases: Inverter at none against Polar's 1. Inverter also leads on update cadence (every 10 days vs every 5 weeks) and iOS requirement (15.6 vs 17.4). On price, ads and device support there is nothing between them.

Both are free to download. Polar sells 1 in-app purchase, starting at $25.00 per year. Inverter asks for nothing beyond the download.

Inverter ships an update every 10 days, Polar every 5 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Inverter | Polar |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 92.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 24 MB | 69 MB |
| Requires iOS | **15.6** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Russell](https://appshunter.io/developer/1651141744) | [GivEnergy Software Limited](https://appshunter.io/developer/1711761312) |

## What reviewers say

### Inverter

[App page](https://appshunter.io/ios/app/inverter/id6443976497)

Monitor and manage your GivEnergy inverter(s) with this straightforward application. It allows for independent control of up to three connected inverters. Resetting IP addresses is easily managed through the iOS Files app.

**Highlights:** Monitor inverter status, Control inverter settings, Connect up to three inverters, Independent inverter management, IP address reset via Files app

**Features:** Vision Pro support

**In-app purchases:** none


### Polar

[App page](https://appshunter.io/ios/app/polar-ess/id6478309215)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $25.00 | per year |


## Frequently asked questions

### Is Inverter free?

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

### Is Polar free?

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

### Do Inverter or Polar have ads?

Neither Inverter nor Polar shows ads.

### Which is updated more often, Inverter or Polar?

Inverter ships an update every 10 days, and Polar every 5 weeks. Most recently, Inverter was updated on November 3, 2026 and Polar on October 27, 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.*