Comparison

U vs Endura® Delta

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

Head to head

About

U

Features

Read full description

This App is a client application for the U-Time software. It enables you to register you time in the U-Time database.

About

Endura® Delta

Read full description

As an innovative ventilation specialist, RENSON® has the objective to turn each home into a healthy and comfortable living environment. The Endura® Delta - a demand-driven ventilation system with integrated heat exchanger - allows you to control the system through Smartphone or Tablet. You will also receive feedback on the systems operation and about the air quality in your home. With the Endura® Delta app, you can: - Fast and intuitive control of the system and navigation through the various menus - Setup your ventilation program per day / week / weekend, so the ventilation level corresponds to your way of life - Timers, allowing you to deviate temporarily from the current ventilation program - Check the operation of the ventilation system. Giving you feedback on the total flow, the measured relative humidity, the measured indoor air quality, indoor and outdoor temperature and filter status. - Configure your device

Screenshots

U1 screens

Endura® Delta3 screens

Verdict

The call

The clearest difference is update cadence: U at every 3 months against Endura® Delta's every 12 months. U also leads on iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases 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

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

UpkeepUpdate frequency

U ships an update every 3 months, Endura® Delta every 12 months. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 4 level

U versus Endura® Delta: the parameters behind the verdict, then further details
Parameter	U	Endura® Delta
Price	Free	Free
Update frequency	Every 3 months — better	Every 12 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	9.0 — better	12.0
Further details — not scored
Size	16 MB	21 MB
Age rating	4+	4+
Developer	Global Time Solutions	RENSON®

In-app purchases

None

U

No in-app purchases

None

Endura® Delta

No in-app purchases

Questions

Is U free?

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

Is Endura® Delta free?

Endura® Delta is free to download, with no in-app purchases.

Do U or Endura® Delta have ads?

Neither U nor Endura® Delta shows ads.

Which is updated more often, U or Endura® Delta?

U ships an update every 3 months, and Endura® Delta every 12 months. Most recently, U was updated on September 10, 2026 and Endura® Delta on September 22, 2026.