# Irrigation Calculator Pro — Water needs, timing, volume

> Water needs, timing, volume (iPhone/iPad app by Cederic Schmid.)

- Source: https://appshunter.io/ios/app/irrigation-calculator-pro/id6751106220 (this page in markdown: same URL + `.md`)
- Developer: [Cederic Schmid](https://appshunter.io/developer/1833020611)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.5 · 3 MB
- Languages: American English
- Released: 2025-08-17
- Data updated: 2026-06-03
- User reviews in markdown: https://appshunter.io/ios/app/irrigation-calculator-pro/id6751106220/reviews.md

## What is Irrigation Calculator Pro?

Irrigation Calculator Pro helps farmers, gardeners, and agriculture pros plan watering with confidence, even without internet. Pick a crop, set your soil, enter ETo and rainfall, and the app calculates how much water you need, how often to irrigate, and the next irrigation date. Simple inputs, accurate results.

Why it’s different
• Works fully offline: no accounts, no APIs, no syncing required.
• Scientifically grounded: uses FAO-standard formulas and effective rainfall.

Key features
• Smart Calculator: Supports 58+ crops with verified Kc values, 6 soil types (AWC-based), crop-specific root depth, and manual ETo/rainfall. Instantly see water volume, frequency, and timing.
• Units your way: Full metric/imperial support (mm/in, L/gal).
• Scheduling made clear: Get the next irrigation date and alerts when soil deficit reaches the MAD threshold.
• History & Records: Save calculations by field/crop; search and review past runs.

Pro tools
• Analytics Dashboard: Track water use trends, compare crop efficiency, view soil water deficits, and estimate costs.
• Custom Crops: Add your own crops with custom Kc and root depth (with validation and helpful ranges).
• Seasonal Planning: Guidance for spring, summer, autumn, and winter to save water while protecting yield.

How it works
• Select crop and soil.
• Enter field size, ETo, and recent rainfall.
• Get required water volume, irrigation frequency, and next date, ready to act.

Designed for
• Professional farmers, consultants, and landscapers who need quick, reliable decisions.
• Serious home gardeners and students learning irrigation science.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Unlock | $3.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2025-09-30

The app is now free to download with an optional Pro unlock
- Added clear free vs Pro feature gating (history capped at 5 entries, analytics, and seasonal planning available in Pro)
- New app icon for a fresh look
- Updated Settings: app info now updates automatically
- Added “Our Apps” section in Settings with quick access to our other apps

### 1.0 — 2025-08-17

No release notes.

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| [Mulching Calculator](https://appshunter.io/ios/app/mulching-calculator/id938575573) | — | Free | Utilities |
| [Soil Soldiers](https://appshunter.io/ios/app/soil-soldiers/id1539918958) | 5.0 (2) | Free | Utilities |
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| [M8 Systems FieldM8](https://appshunter.io/ios/app/m8-systems-fieldm8/id1604691850) | 5.0 (2) | Free | Utilities |
| [Smartprobe Application](https://appshunter.io/ios/app/smartprobe-application/id6499262556) | 5.0 (2) | Free | Utilities |

## More apps by Cederic Schmid

- [Concrete Calculator Pro.](https://appshunter.io/ios/app/concrete-calculator-pro/id6749963303)
- [Klabim](https://appshunter.io/ios/app/klabim/id6751127127)
- [Cocktail Calculator Pro](https://appshunter.io/ios/app/cocktail-calculator-pro/id6751190590)
- [Master Cheats](https://appshunter.io/ios/app/master-cheats/id6751210646)
- [Video Size Calculator Pro](https://appshunter.io/ios/app/video-size-calculator-pro/id6751235728)

All apps by Cederic Schmid: https://appshunter.io/developer/1833020611

## Related topics

[irrigation calculator pro](https://appshunter.io/ios/topics/irrigation-calculator-pro)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-03.*