OpenSprinkler vs Grow Guardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenSprinkler
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.
- Device status monitoring
- Program modification
- Instant program launch
- Manual testing mode
- Multi-device support
- Weather and forecast integration
- Log data visualization
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The application allows you to automatically detect and control your OpenSprinkler irrigation system(s). OpenSprinkler is an open-source Internet web-based sprinkler timer / controller built upon the Arduino platform. Features of the app include: * Easy to understand device status * Quick program modification * Launch ad-hoc or defined programs instantly * Manual mode for convenient testing * Multi-device support * View visual representation of upcoming scheduled programs * View graphical and tabulated representation of log data * View current weather and forecast status for the device location * Change and disable rain delay * Multiple supported languages (Afrikaans, Amharic, Chinese, Czech, Dutch, French, German, Hebrew, Hungarian, Italian, Mongolian, Norwegian, Polish, Portuguese, Slovak, Slovenian, Spanish and more) This application requires you to own an OpenSprinkler that is properly connected to your network. For more information please visit https://opensprinkler.com. You can control your device from outside the local network with proper port forwarding and use of the WAN IP within the application or by using a VPN. For further assistance please visit the forums: https://forums.opensprinkler.com This is open source software: source code for this application can be found at https://github.com/OpenSprinkler/OpenSprinkler-App
Grow Guardian
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Grow Guardian is a cultivation intelligence platform designed to help growers monitor plant health, detect pests early, and manage Integrated Pest Management (IPM) programs. Built by experienced cultivators, Grow Guardian combines environmental monitoring, pest photo documentation, scouting logs, and compliance tools into one platform to help protect crops and maximize yields. Pest Photo Logger Use your phone's camera to photograph and document pest observations across your crops. Capture before-and-after photos, log severity levels, and track locations — building a complete visual record of pest activity to support your IPM treatment decisions. AI Chat Assistant Chat with an AI assistant to help analyze cultivation challenges. Import photos directly into the chat for pest and disease discussion, treatment recommendations, and grow room troubleshooting. IPM Scouting Logs Record pest and pathogen observations during routine scouting. Track pressure levels across rooms and plants to identify trends and prevent outbreaks. Environmental Monitoring Monitor key grow room conditions and receive alerts when temperature, humidity, or other environmental factors move outside optimal ranges. Pest & Pathogen Tracking Track common cultivation threats including spider mites, russet mites, thrips, aphids, powdery mildew, fusarium, pythium, and other pathogens affecting plant health. Inventory Management Manage cultivation supplies including nutrients, pesticides, beneficial insects, and equipment. Track usage across rooms and cultivation cycles. Spray & Treatment Logging Maintain detailed records of pesticide applications, biological controls, and preventative treatments to support safe and compliant cultivation practices. Compliance Tracking Automatically log treatments, scouting reports, and grow activities to help maintain regulatory compliance and cultivation documentation. Grow Room Organization Manage multiple rooms, gardens, or facilities while tracking environmental data, scouting reports, and inventory from one dashboard. Team Collaboration Assign scouting tasks, track cultivation activities, and keep your grow team aligned across the entire facility. Designed for Growers Grow Guardian was created with real cultivation workflows in mind to support both home growers and commercial cultivation operations. Whether you manage a small garden, greenhouse, or large commercial facility, Grow Guardian helps protect your plants, streamline IPM programs, and simplify cultivation management. Protect your crop. Document pest activity. Grow smarter with Grow Guardian. By using this app, you agree to our Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period.
Screenshots
Verdict
The clearest difference is in-app purchases: OpenSprinkler at none against Grow Guardian's 1. OpenSprinkler also leads on ads (none vs shown). Grow Guardian's advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Grow Guardian sells 1 in-app purchase, starting at $14.99 per month. OpenSprinkler asks for nothing beyond the download.
| Parameter | OpenSprinkler | Grow Guardian |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (29 ratings) — better | — |
| Positive reviews | 64.8% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 114 MB |
| Age rating | 4+ | 17+ |
| Developer | OpenThings | Grow Guardian |
Bugs and requests
OpenSprinkler
Reported bugs
20 issues- No network connectivity after update
- Constantly crashes and fails to connect
- App refreshes and updates super slow
- Incompatible with VoiceOver, cannot edit/create programs
- App cannot connect or discover OpenSprinkler 1.8.3 after update
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- Update deleted OS sites and required new login
- Loses settings on app updates
- Won't connect to controller, but works in browser
- Requires VPN to log in remotely
- Screen doesn't refresh after changes, requires app restart
- App crashes when taking a picture to assign to a zone
- Resume after phone lock causes freeze, requires app restart
- Weather location always displays as '11, Tottori-ken'
- Hardware unit loses power randomly and reboots
- App adds additional programs to the end of the list
- Clock/GMT feature crashes app and reverts to default
- Latest update broke connection with early build units (FW 1.8.3)
- Update crashed OpenSprinkler, router can't find units
- Firmware update wipes out config
- Resume on iPhone 7 doesn't work, requires force quit
Requested features
9 requests- Add Apple Watch support
- Indicate % water level with weather forecasts
- Fix VoiceOver compatibility for editing/creating programs
- Improve UI, follow iPhone standards
- Add logging support to the app
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- Support for older firmware versions (1.8.3)
- Fix DHCP/static IP bug
- Add temperature display to home screen
- Fix resume issue on iPhone
Grow Guardian
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OpenSprinkler
No in-app purchases
Grow Guardian
- Premium Monthly$14.991 Month









