ProCloud vs Key4Friends
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProCloud
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Erlebnis Teamwork - beeindruckend einfacher Datenaustausch. Ihre Dokumente in der Cloud. Sicher durch Verschlüsselung. Dokumentenzugriff, sofort und in jeder Situation Ultraschnelle Suche (Volltext, Schlagwörter) Mühelose Orientierung durch übersichtliche Gitteransicht und Vorschaubilder Integrierter Viewer für viele Dateiformate Hochladen von Bildern und Fotos direkt aus der App Speichern von Dokumenten auf dem iPad oder iPhone zur späteren Verwendung ohne Netzwerk Verschlüsselte Übertragung; Datenspeicherung ausschließlich in Deutschland Bitte beachten Sie, dass Sie für die Verwendung einen kostenpflichtigen ProCloud Zugang benötigen.
Key4Friends
Easily and securely share access to doors with friends and family. Receive authorizations from the MobileKey app to open and close designated doors directly from your smartphone. Requires an internet connection for operation.
- Receive digital door keys
- Open and close authorized doors
- Secure key distribution
- Easy friend sharing
- Email and SMS verification
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Safe distribution of keys among friends has never been easier: the Key4Friends app receives keys which the owner wishes to share with you from the MobileKey app. The function is quickly explained: the owner of the door sends you an authorisation for one or more doors over the MobileKey web app. You can then open and close the doors concerned using the Key4Friends app. Key4Friends is quick, easy, safe and free to install. You will only be asked for your email during registration. We will then send you a code by text message to check registration. No password is required thanks to the distinct connection between the SIM card and the email address. Important: your smartphone needs to be connected to the Internet to open or close a door with the Key4Friends app. This means that there may be charges, depending on the contract with the operator. Don't worry, though – the amount of data sent is minimal. SimonsVoss Technologies GmbH hopes you have fun sharing keys safely and securely.
Screenshots
Verdict
The clearest difference is update cadence: ProCloud at every 2 months against Key4Friends's every 9 months. ProCloud also leads on iOS requirement (11.0 vs 26.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ProCloud ships an update every 2 months, Key4Friends every 9 months. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.
| Parameter | ProCloud | Key4Friends |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 9.1% of reviews |
| Update frequency | Every 2 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 49 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Scopevisio DevOps GmbH | SimonsVoss Technologies GmbH |
In-app purchases
ProCloud
No in-app purchases
Key4Friends
No in-app purchases
