Comparison

Linkding Web Extension vs CO2 on Watch & Lockscreen

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

Head to head
About

Linkding Web Extension

This Safari extension simplifies bookmarking by pre-populating your self-hosted Linkding service with the current URL. It offers an options page for server address customization and is easily enabled through iOS Settings.

Highlights
  • Pre-populates Linkding with current URL
  • Customizable server address
  • Easy enabling via iOS Settings
  • Opens Linkding page directly
Features
Read full description

This is a simple safari extension for Linkding, a self-hosted bookmark manager service. You can find it at https://github.com/sissbruecker/linkding. This extension simply opens Linkding page with your URL pre-populated. It also provides an Options page where you can customize your linkding server address. The first time you use the extension, it will open the Options page where you can configure the host name. If you need to update the host address, follow these steps: 1. Go to iOS's Settings 2. Go to Safari 3. Go to Extensions 4. Click on Linkding in the list 5. Switch on Linkding (this will enable the extension and allow you to continue to step 6) 6. Click on Settings

About

CO2 on Watch & Lockscreen

Monitor CO2 levels from compatible devices directly on your Apple Watch and iPhone Lock Screen. Receive smart alerts and view real-time air quality data with color-coded visuals for quick understanding.

Highlights
  • Apple Watch complications with history graph
  • iPhone Lock Screen widgets
  • Customizable CO2 threshold alerts
  • Background monitoring
  • Live Activity for real-time data
  • Color-coded air quality visuals
Features
Read full description

Enhance your Aranet4, Airvalent or Inkbird IAM-T1 monitoring experience with an app focused on Apple Watch integration and Lock Screen widgets. (this is a companion app focusing on Apple Watch integration and Lock Screen visibility; for the original features, please use the official apps). KEY FEATURES: - Apple Watch Integration: Monitor CO₂ levels directly from your wrist with multiple complication styles (including a 3hr history graph) - Lock Screen Widgets: Keep CO₂ readings visible at all times on your iPhone - Smart Alerts: Customizable CO₂ threshold notifications - Background Monitoring: Continuous tracking even when the app isn't active - Live activity: for real-time monitoring - Color-coded Visuals: Quick understanding of air quality status DEVICE COMPATIBILITY: - Works with Aranet4, Airvalent and Inkbird IAM-T1 devices. The app is free to test and connect to your device, with in-app purchases available for premium features. This app is licensed under the standard Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Linkding Web Extension3 screens
CO2 on Watch & Lockscreen4 screens

Verdict

The call

The clearest difference is price: CO2 on Watch & Lockscreen at Free against Linkding Web Extension's $0.99. Linkding Web Extension's advantage is rating (5.0 vs 1.0) and in-app purchases (none vs 8). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

CO2 on Watch & Lockscreen is free to download; Linkding Web Extension costs $0.99 up front. CO2 on Watch & Lockscreen sells 8 in-app purchases, starting at $1.99 per month. Linkding Web Extension asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Linkding Web Extension holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Scorecard5 real differences · 5 level
Linkding Web Extension versus CO2 on Watch & Lockscreen: the parameters behind the verdict, then further details
ParameterLinkding Web ExtensionCO2 on Watch & Lockscreen
Price$0.99Free — better
Rating5.0 (1 ratings) — better1.0 (2 ratings)
Positive reviews—50.0% of reviews
Number of ratings12 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, Apple Watch
Requires iOS15.0 — better17.6
Further details — not scored
Size1 MB28 MB
Age rating4+4+
DeveloperTuan NguyenKevin Floch

Customer experience

Linkding Web Extension

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

CO2 on Watch & Lockscreen

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Linkding Web Extension

No in-app purchases

8 purchases

CO2 on Watch & Lockscreen

Subscriptions2
  • CO2_Monthly7 Days trial$1.991 Month
  • CO2_Annually7 Days trial$9.991 Year
One-time6
  • Small tip$4.99
  • Medium tip$9.99
  • CO2_Lifetime_Upgrade2$14.99
Show 3 more
  • Large tip$19.99
  • CO2_Lifetime$24.99
  • Extra large tip$49.99

Questions

Is Linkding Web Extension free?
Linkding Web Extension costs $0.99, with no in-app purchases.
Is CO2 on Watch & Lockscreen free?
CO2 on Watch & Lockscreen is free to download, with in-app purchases available.
Which has better reviews, Linkding Web Extension or CO2 on Watch & Lockscreen?
Linkding Web Extension is rated higher. Linkding Web Extension averages 5.0 out of 5 from 1 ratings, while CO2 on Watch & Lockscreen averages 1.0 from 2 ratings.
Do Linkding Web Extension or CO2 on Watch & Lockscreen have ads?
Neither Linkding Web Extension nor CO2 on Watch & Lockscreen shows ads.

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