# Siar vs Renyn

The clearest difference is update cadence: Renyn at fortnightly against Siar's every 6 weeks. Siar's advantage is iOS requirement (15.0 vs 17.0). 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.

Siar ships an update every 6 weeks, Renyn fortnightly. The most recent releases landed on September 23, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Siar | Renyn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 14 MB | 111 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TECNOLOGIAS Y SERVICIOS AGRARIOS SA SME MP](https://appshunter.io/developer/1456227300) | [H·Cero](https://appshunter.io/developer/1561027291) |

## What reviewers say

### Siar

[App page](https://appshunter.io/ios/app/siar/id1129186499)

This application helps farmers manage irrigation by calculating crop water needs and irrigation doses. It provides daily and weekly irrigation requirements, soil moisture status, and meteorological data. Users can personalize crop management by setting plot location, planting date, irrigation system, and soil type.

**Highlights:** Calculate crop water needs and irrigation doses, Daily and weekly irrigation requirements, Soil moisture status monitoring, Real-time meteorological data, Personalized crop management settings, 5-day weather forecast, Customizable notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Renyn

[App page](https://appshunter.io/ios/app/renyn/id1561027289)

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

**In-app purchases:** none


## Frequently asked questions

### Is Siar free?

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

### Is Renyn free?

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

### Do Siar or Renyn have ads?

Neither Siar nor Renyn shows ads.

### Which is updated more often, Siar or Renyn?

Siar ships an update every 6 weeks, and Renyn fortnightly. Most recently, Siar was updated on September 23, 2026 and Renyn on October 2, 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.*