Comparison

OpenSprinkler vs Metka

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Device status monitoring
  • Program modification
  • Instant program launch
  • Manual testing mode
  • Multi-device support
  • Weather and forecast integration
  • Log data visualization
Features
Read full description

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

About

Metka

This app helps street marketing teams document their work with photo check-ins. It automatically adds timestamps and location data, providing proof of completed tasks for managers. The streamlined workflow eliminates manual reporting for field marketing efforts.

Highlights
  • Photo check-ins with timestamps
  • Automatic location tagging
  • Task-based workflow
  • Offline submission queue
  • Push notifications
  • Proof-of-work records
Read full description

Metka is a simple and reliable way for marketing street teams to document and verify their work. The app allows users to capture photos with automatic timestamps and location information, creating clear proof of completed tasks. Street team members can quickly submit photo check-ins tied to their specific assignments, making it easy for managers and organizers to confirm that work was completed correctly and on time. Metka removes the need for manual forms or complicated reporting systems by providing a streamlined workflow designed specifically for field marketing. Key Features: • Photo check-ins that include timestamps • Automatic location tagging while using the app • Simple task-based workflow for street teams • Offline submission queue that uploads when connected • Push notifications for reminders and updates • Organized proof-of-work records for managers Metka is built for promoters, brand ambassadors, field marketers, and anyone who needs to capture visual proof of work in real time. It is ideal for event marketing, nightlife promotions, street poster campaigns, and neighborhood canvassing.

Screenshots

OpenSprinkler3 screens
Metka3 screens

Verdict

The call

The clearest difference is rating: Metka at 5.0 against OpenSprinkler's 3.9. OpenSprinkler's advantage is ratings volume (29 vs 1). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Metka holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: OpenSprinkler has 29 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OpenSprinkler ships an update every 2 months, Metka every 5 weeks. The most recent releases landed on September 24, 2026 and July 18, 2026 respectively.

Scorecard2 real differences · 8 level
OpenSprinkler versus Metka: the parameters behind the verdict, then further details
ParameterOpenSprinklerMetka
PriceFreeFree
Rating3.9 (29 ratings)5.0 (1 ratings) — better
Positive reviews64.8% of reviews—
Number of ratings29 — better1
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size6 MB33 MB
Age rating4+4+
DeveloperOpenThingsThomas Brock

Customer experience

OpenSprinkler

All ratings29 ratings
Positive72.4%
Neutral10.3%
Negative17.2%
Written reviews54 reviews
Positive64.8%
Neutral13.0%
Negative22.2%

Metka

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OpenSprinkler

No in-app purchases

None

Metka

No in-app purchases

Questions

Is OpenSprinkler free?
OpenSprinkler is free to download, with no in-app purchases.
Is Metka free?
Metka is free to download, with no in-app purchases.
Which has better reviews, OpenSprinkler or Metka?
Metka is rated higher. OpenSprinkler averages 3.9 out of 5 from 29 ratings, while Metka averages 5.0 from 1 ratings.
Do OpenSprinkler or Metka have ads?
Neither OpenSprinkler nor Metka shows ads.
Which is updated more often, OpenSprinkler or Metka?
OpenSprinkler ships an update every 2 months, and Metka every 5 weeks. Most recently, OpenSprinkler was updated on September 24, 2026 and Metka on July 18, 2026.

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