# EIRP Calculator vs Subeca Engage

The clearest difference is update cadence: Subeca Engage at every 3 weeks against EIRP Calculator's every 129 months. Subeca Engage also leads on iOS requirement (15.0 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EIRP Calculator ships an update every 129 months, Subeca Engage every 3 weeks. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | EIRP Calculator | Subeca Engage |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/subeca-engage/id6478509015/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 129 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 0 MB | 63 MB |
| Requires iOS | 17.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pulsely Consulting](https://appshunter.io/developer/475349326) | [Subeca Inc](https://appshunter.io/developer/1683402190) |

## What reviewers say

### EIRP Calculator

[App page](https://appshunter.io/ios/app/eirp-calculator/id785448118)

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

**In-app purchases:** none


### Subeca Engage

[App page](https://appshunter.io/ios/app/subeca-engage/id6478509015)

This app simplifies water technology, making it affordable and accessible. It offers a smarter approach to managing water resources for users.

**Highlights:** Water technology simplification, Affordable water solutions, Accessible water management, Smarter water usage

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

**In-app purchases:** none


## Frequently asked questions

### Is EIRP Calculator free?

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

### Is Subeca Engage free?

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

### Do EIRP Calculator or Subeca Engage have ads?

Neither EIRP Calculator nor Subeca Engage shows ads.

### Which is updated more often, EIRP Calculator or Subeca Engage?

EIRP Calculator ships an update every 129 months, and Subeca Engage every 3 weeks. Most recently, EIRP Calculator was updated on October 26, 2026 and Subeca Engage on October 12, 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.*