# RainMachine vs OpenSprinkler

The clearest difference is review sentiment: OpenSprinkler at 65% against RainMachine's 14%. OpenSprinkler also leads on rating (3.9 vs 1.8) and in-app purchases (none vs 1). RainMachine's advantage is ratings volume (613 vs 29) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RainMachine sells 1 in-app purchase, starting at $29.99 per year. OpenSprinkler asks for nothing beyond the download.

OpenSprinkler holds the better App Store score, 3.9 against 1.8. That said, the two scores are not equally well evidenced: RainMachine has 613 ratings behind it against 29, so its average is the more settled of the two. Written reviews point the same way: 14% of RainMachine's written reviews are positive against 65% of OpenSprinkler's.

RainMachine ships an update monthly, OpenSprinkler every 2 months. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | RainMachine | OpenSprinkler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (613 ratings)](https://appshunter.io/ios/app/rainmachine/id647589286/reviews) | **[3.9 (29 ratings)](https://appshunter.io/ios/app/opensprinkler/id830988967/reviews)** |
| Number of ratings | **613** | 29 |
| Positive reviews | 14.3% of reviews | **64.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 33 MB | 6 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RainMachine](https://appshunter.io/developer/647589469) | [OpenThings](https://appshunter.io/developer/1526685906) |

## What reviewers say

### RainMachine

[App page](https://appshunter.io/ios/app/rainmachine/id647589286)

Control your smart sprinkler system from your iPhone or iPad. Dynamically adjust watering schedules based on local weather data to save water and maintain a healthy garden. Manage zones, set restrictions, and snooze or pause watering remotely.

**Highlights:** Cloud independent smart sprinkler control, Dynamic weather-based watering schedules, Remote access and control, Water saving technology, Zone and program management, Snooze and pause watering

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RainMachine Premium | $29.99 | per year |


### OpenSprinkler

[App page](https://appshunter.io/ios/app/opensprinkler/id830988967)

Control your OpenSprinkler irrigation system remotely. Monitor device status, modify watering schedules, and launch programs instantly. Features manual testing, multi-device support, and weather integration.

**Highlights:** Device status monitoring, Program modification, Instant program launch, Manual testing mode, Multi-device support, Weather and forecast integration, Log data visualization

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

**In-app purchases:** none


## Frequently asked questions

### Is RainMachine free?

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

### Is OpenSprinkler free?

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

### Which has better reviews, RainMachine or OpenSprinkler?

OpenSprinkler is rated higher. RainMachine averages 1.8 out of 5 from 613 ratings, while OpenSprinkler averages 3.9 from 29 ratings.

### Do RainMachine or OpenSprinkler have ads?

Neither RainMachine nor OpenSprinkler shows ads.

### Which is updated more often, RainMachine or OpenSprinkler?

RainMachine ships an update monthly, and OpenSprinkler every 2 months. Most recently, RainMachine was updated on September 19, 2026 and OpenSprinkler on September 24, 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.*