DUSphone vs Proclaim VoIP
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DUSphone
This VoIP softphone allows you to make encrypted, HD-quality calls to landlines, mobile numbers, and other lines directly from your iPhone. It offers seamless integration with your device and ensures your conversations remain private. Manage multiple lines and keep track of your prepaid balance with ease.
- Encrypted calling (TLS/SRTP)
- HD voice quality (Opus codec)
- Native call integration (Apple CallKit)
- Reliable incoming calls (VoIP push)
- Call landlines and mobile numbers
- Multi-account management
- Caller ID management
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dus.net GmbH proudly presents DUSphone – the VoIP softphone for your dus.net line. Make encrypted, HD-quality calls straight from your iPhone: to landlines, mobile numbers, and other dus.net lines. All you need is a dus.net plan – ready in minutes, including a starting balance of €0.45 for your first calls. See the plans at www.dus.net. Your benefits: • Encrypted calling over TLS and SRTP – your conversations stay private • HD voice quality powered by the Opus codec • Native call integration via Apple CallKit – calls appear on your lock screen and in your recents, just like regular calls • Always reachable: incoming calls ring reliably, even when your iPhone is locked or the app is closed (VoIP push) • Call landlines and mobile numbers – and receive calls on your dus.net number • Fast setup by scanning a QR code from the customer center – no password to type • Manage several lines at once (multi-account) • Company directory and device contacts – callers are matched by name • Keep an eye on your prepaid balance in euros at any time • Show or hide your caller ID per call (call anonymously) • In-call DTMF, hold, speaker, Bluetooth, and call history Privacy-friendly: no tracking, no ads. DUSphone is built on open-source software (baresip); the open-source licenses can be viewed in the app. Requirement: DUSphone needs a VoIP line at dus.net. More information at www.dus.net.
Proclaim VoIP
This app extends VoIP capabilities to mobile devices, allowing users to maintain a consistent identity across calls from any location. It offers seamless call transfer between devices and centralizes contact, voicemail, and call history management.
- Unified Communications solution
- Maintain same identity across devices
- Seamless call transfer
- Contact management
- Voicemail and call history
- Answering rules and presence management
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Proclaim VoIP is a SIP softclient that extends VoIP functionality beyond the land line or desk top. It brings features of the Proclaim VoIP platform directly to end-user's mobile devices as a Unified Communications solution. With Proclaim VoIP, users are able to maintain the same identity when making or receiving calls from any location, regardless of their device. They are also able seamlessly send an ongoing call from one device to another and continue that call without interruption. Proclaim VoIP grants users the ability to manage contacts, voicemail, call history and configurations in a single location. This includes the management of answering rules. greetings, and presence which all contribute to more efficient communication. ***NOTICE: You must have a an existing account with a supported service provider in order for Proclaim VoIP to work***
Screenshots
Verdict
The clearest difference is update cadence: DUSphone at weekly against Proclaim VoIP's every 2 months. On price, ads, in-app purchases and monetization model 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.
DUSphone ships an update weekly, Proclaim VoIP every 2 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | DUSphone | Proclaim VoIP |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 11 MB | 121 MB |
| Age rating | 4+ | 4+ |
| Developer | dus.net GmbH | Proclaim Voip LLC |
Customer experience
DUSphone
Proclaim VoIP
In-app purchases
DUSphone
No in-app purchases
Proclaim VoIP
No in-app purchases
