Comparison

ProximiKey vs Hydraloop

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

Head to head
About

ProximiKey

Features
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ProximiKey is a digital key solution that enables you to use your Iphone as a key to the locks. ProximiKey is safe, easy and convenient to use and if needed, the access can be shared with friends and family You can have up to 4 locks connected to the app. The solution is powered by NFC tehnology and does not require any additional Iphone settings. The app does not require any user creation with email etc. and ProximiKey will never collect any personal information. ProximiKey is for everyone who wants to replace one or more physical keys in their keybundle.

About

Hydraloop

Features
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Take control of your water management with the Hydraloop app, designed to make water saving effortless and smart. This app connects seamlessly to your Hydraloop water recycling system β€” a groundbreaking solution that recycles greywater from showers, baths, and washing machines for reuse in toilet flushing, laundry, irrigation, and more. The Hydraloop app allows you to monitor your system’s performance 24/7 in real time and track your water savings daily, weekly, or monthly. You can view your water recycling history and usage statistics, enabling a deeper understanding of your impact. The app also includes a bypass mode for special cases, such as when using hair dye or bleach, and sends notifications when recycled water becomes available. Additionally, you’ll receive alerts about your device’s status and any required maintenance. With IoT integration, the Hydraloop app delivers personalized tips and real-time updates, ensuring optimal efficiency without compromising comfort. Join the future of smart water management today!

Screenshots

ProximiKey4 screens
Hydraloop3 screens

Verdict

The call

The clearest difference is update cadence: Hydraloop at monthly against ProximiKey's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

ProximiKey ships an update every 13 months, Hydraloop monthly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

Scorecard1 real difference Β· 5 level
ProximiKey versus Hydraloop: the parameters behind the verdict, then further details
ParameterProximiKeyHydraloop
PriceFreeFree
Update frequencyEvery 13 monthsMonthly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details β€” not scored
Size18 MB25 MB
Age rating4+4+
DeveloperProximiKey ApsHydraloop Systems bv

In-app purchases

None

ProximiKey

No in-app purchases

None

Hydraloop

No in-app purchases

Questions

Is ProximiKey free?
ProximiKey is free to download, with no in-app purchases.
Is Hydraloop free?
Hydraloop is free to download, with no in-app purchases.
Do ProximiKey or Hydraloop have ads?
Neither ProximiKey nor Hydraloop shows ads.
Which is updated more often, ProximiKey or Hydraloop?
ProximiKey ships an update every 13 months, and Hydraloop monthly. Most recently, ProximiKey was updated on October 7, 2026 and Hydraloop on October 15, 2026.

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