Comparison

Carré Concorde vs WelcomPool

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

Head to head

About

Carré Concorde

Features

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Carré Concorde, regroupe dans une seule application, les services et les fonctionnalités disponibles sur votre lieu de travail. Plus pratique pour les collaborateurs, plus simple pour les gestionnaires !

About

WelcomPool

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WelcomPool makes pool water treatment easy! WelcomPool is a Bluetooth remote control that lets you control your treatment equipment from your smartphone. Simple and user-friendly, the app lets you - Set your production, pH and ORP parameters - Set the different operating modes of your chlorinator - Adjust the parameters of your appliance (water hardness, polarity inversion, type of corrective agent, presence of flow sensor, etc.) - Alerts and alarms directly on your app - Update the device software directly from your smartphone - View until 10-day rolling history Compatible with the Stérilor EVO 2024 ranges

Screenshots

Carré Concorde4 screens

WelcomPool4 screens

Verdict

The call

The clearest difference is update cadence: Carré Concorde at every 9 days against WelcomPool's every 2 months. 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

Carré Concorde ships an update every 9 days, WelcomPool every 2 months. The most recent releases landed on October 1, 2026 and October 4, 2026 respectively.

Scorecard1 real difference · 5 level

Carré Concorde versus WelcomPool: the parameters behind the verdict, then further details
Parameter	Carré Concorde	WelcomPool
Price	Free	Free
Update frequency	Every 9 days — better	Every 2 months
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPod	iPhone, iPod
Requires iOS	15.0	14.0 — better
Further details — not scored
Size	241 MB	26 MB
Age rating	4+	4+
Developer	Wise Building	AS Pool

In-app purchases

None

Carré Concorde

No in-app purchases

None

WelcomPool

No in-app purchases

Questions

Is Carré Concorde free?

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

Is WelcomPool free?

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

Do Carré Concorde or WelcomPool have ads?

Neither Carré Concorde nor WelcomPool shows ads.

Which is updated more often, Carré Concorde or WelcomPool?

Carré Concorde ships an update every 9 days, and WelcomPool every 2 months. Most recently, Carré Concorde was updated on October 1, 2026 and WelcomPool on October 4, 2026.