# Poison Ivy vs Hydrawise

The clearest difference is price: Hydrawise at Free against Poison Ivy's $0.99. Hydrawise also leads on rating (4.7 vs 3.2) and update cadence (every 3 weeks vs every 15 months). Poison Ivy's advantage is review sentiment (50% vs 39%) and iOS requirement (13.3 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Hydrawise is free to download; Poison Ivy costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hydrawise holds the better App Store score, 4.7 against 3.2. That said, the two scores are not equally well evidenced: Hydrawise has 67K ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 50% of Poison Ivy's written reviews are positive against 39% of Hydrawise's, so the app with the better star average is not the one people write more warmly about.

Poison Ivy ships an update every 15 months, Hydrawise every 3 weeks. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Poison Ivy | Hydrawise |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.2 (14 ratings)](https://appshunter.io/ios/app/poison-ivy/id1467123400/reviews) | **[4.7 (67K ratings)](https://appshunter.io/ios/app/hydrawise/id1618847331/reviews)** |
| Number of ratings | 14 | **67K** |
| Positive reviews | **50.0% of reviews** | 39.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Size | 27 MB | 143 MB |
| Requires iOS | **13.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Taylor Sanson](https://appshunter.io/developer/647630556) | [Hunter Industries](https://appshunter.io/developer/710090127) |

## What reviewers say

### Poison Ivy

[App page](https://appshunter.io/ios/app/poison-ivy/id1467123400)

Identify poison ivy plants quickly and accurately using your phone's camera. This utility app leverages machine learning to help you avoid contact with the irritating plant.

**Highlights:** Image recognition, Machine learning technology, Poison ivy identification, Avoidance tool

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

**In-app purchases:** none


### Hydrawise

[App page](https://appshunter.io/ios/app/hydrawise/id1618847331)

Optimize your irrigation with intelligent, weather-based watering schedules. This app helps conserve water while ensuring your landscape stays lush and healthy. Manage your system remotely for ultimate convenience and efficiency.

**Highlights:** Predictive Watering based on weather, Optimized water usage, Remote irrigation system management, Enhanced local weather insights, Lush landscape maintenance

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Improved performance
- 💡 Useful features like weather-based watering
- 🔒 Secure system

**What reviewers complain about**

- 🐛 Connectivity issues
- 👎 Confusing user interface
- 🔍 Difficult to find/access certain features
- 📉 Lack of important functionality from previous app

**Reported bugs**

- App crashes on launch
- Zones not starting as scheduled
- Incorrect flow rate and water usage data

**Requested features**

- Ability to pause/resume programs
- Customizable watering schedules
- Improved reporting and historical data
- Easier manual zone control


## Frequently asked questions

### Is Poison Ivy free?

Poison Ivy costs $0.99, with no in-app purchases.

### Is Hydrawise free?

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

### Which has better reviews, Poison Ivy or Hydrawise?

Hydrawise is rated higher. Poison Ivy averages 3.2 out of 5 from 14 ratings, while Hydrawise averages 4.7 from 67K ratings.

### Do Poison Ivy or Hydrawise have ads?

Neither Poison Ivy nor Hydrawise shows ads.

### Which is updated more often, Poison Ivy or Hydrawise?

Poison Ivy ships an update every 15 months, and Hydrawise every 3 weeks. Most recently, Poison Ivy was updated on November 3, 2026 and Hydrawise on November 6, 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.*