# HelioPeak vs Modbus TCP FieldKit

The clearest difference is price: HelioPeak at Free against Modbus TCP FieldKit's $5.99. HelioPeak also leads on update cadence (every 3 days vs weekly). Modbus TCP FieldKit's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

HelioPeak is free to download; Modbus TCP FieldKit costs $5.99 up front. HelioPeak sells 1 one-off in-app purchase. Modbus TCP FieldKit asks for nothing beyond the download.

HelioPeak ships an update every 3 days, Modbus TCP FieldKit weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HelioPeak | Modbus TCP FieldKit |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/heliopeak-solar-tracker/id6762064486/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free | — |
| Size | 14 MB | 13 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sven De Troch](https://appshunter.io/developer/1892721021) | [Vladimir Chemeris](https://appshunter.io/developer/1854526571) |

## What reviewers say

### HelioPeak

[App page](https://appshunter.io/ios/app/heliopeak-solar-tracker/id6762064486)

Monitor your solar panel production and consumption with detailed charts and reports. Analyze year-over-year comparisons, system health, and estimated revenue. Annotate daily data and export reports in various formats.

**Highlights:** Live power readings and daily production overview, Production, Consumption, and Combined views, Year-over-year comparisons and annual reports, System health indicators, Annotate daily data with notes, CSV and JSON data export, Home screen widgets

**Features:** macOS Compatibility, Family Sharing, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Multiple Systems | $5.99 | one-time |


### Modbus TCP FieldKit

[App page](https://appshunter.io/ios/app/modbus-tcp-fieldkit/id6768897913)

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

**In-app purchases:** none


## Frequently asked questions

### Is HelioPeak free?

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

### Is Modbus TCP FieldKit free?

Modbus TCP FieldKit costs $5.99, with no in-app purchases.

### Do HelioPeak or Modbus TCP FieldKit have ads?

Neither HelioPeak nor Modbus TCP FieldKit shows ads.

### Which is updated more often, HelioPeak or Modbus TCP FieldKit?

HelioPeak ships an update every 3 days, and Modbus TCP FieldKit weekly. Most recently, HelioPeak was updated on October 28, 2026 and Modbus TCP FieldKit on October 31, 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.*