Blue Water App vs Charly's Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Water App
Easily pay your marina fees from your phone anytime, anywhere. The app automatically detects your location to present the correct payment page, saving you time and the hassle of visiting the marina office. Some locations also allow advance berth bookings.
- 24/7 mobile payments
- Automatic marina detection
- Secure payment processing
- Profile and boat details management
- Advance berth booking (select marinas)
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Blue Water App enables you to pay your marina fees by phone 24/7. It’s fast, it’s simple and it’s safe. Create a profile, add your boat details, turn on location services for Blue Water App (settings > privacy > location services) and the app will automatically show you the payment page of the marina where you are moored. Without leaving your boat, you can pay for your berth by phone 24/7. It saves time and standing in line or waiting for the office to open. In a number of marinas you can also book your berth in advance. At Blue Water App it’s our mission to contribute to the ease and comfort of adventurers and bon vivants who love to spend time on the water and to offer them an easy and safe way to pay for marina fees.
Charly's Smart
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Charly's Smart-(e)bikes können ganz einfach per Sharing App, auf Borkum, Juist, Norderney und Wangerooge ausgeliehen werden. Durch den verbauten E-Motor kannst du auch bei Gegenwind eine entspannte Fahrradtour auf deiner Lieblingsinsel machen. HOW TO Charly's 1. DOWNLOAD UND REGISTRIERUNG Nach dem Download der Charly's App wird die kostenlose Registrierung durchgeführt und ein kostenloses Konto für dich eingerichtet. 2. VERIFIZIERUNG Nach dem Hinzufügen einer Zahlungsmethode lassen sich auf der Map in der App alle derzeit zur Verfügung stehenden Bikes anzeigen. 3. FAHRT STARTEN Beim e-Bike angekommen lässt sich die Fahrt durch das Scannen des QR-Codes am e-Bike starten. Das Schloss entriegelt sich bei Betätigung des Buttons "Fahrt starten" automatisch. Nun kannst Du losfahren!
Screenshots
Verdict
The clearest difference is update cadence: Charly's Smart at every 11 days against Blue Water App's every 6 weeks. Blue Water App's advantage is iOS requirement (11.0 vs 15.6). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Blue Water App ships an update every 6 weeks, Charly's Smart every 11 days. The most recent releases landed on June 8, 2026 and August 30, 2026 respectively.
| Parameter | Blue Water App | Charly's Smart |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 6 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 39 MB | 97 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Water App B.V. | SIA ATOM Tech |
In-app purchases
Blue Water App
No in-app purchases
Charly's Smart
No in-app purchases








