DUSphone vs INOSOFT
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
Read full descriptionHide full description
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.
INOSOFT
Read full descriptionHide full description
Die INOSOFT App ist der perfekte Zugang zu allen relevanten Informationen für Kunden der INOSOFT AG: Greifen Sie jederzeit und überall auf aktuelle Neuigkeiten, Veranstaltungsinformationen oder Produktinformationen zu.
Screenshots
Verdict
The clearest difference is update cadence: DUSphone at weekly against INOSOFT's every 2 months. INOSOFT's advantage is iOS requirement (14.0 vs 17.0). 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.
DUSphone ships an update weekly, INOSOFT every 2 months. The most recent releases landed on September 19, 2026 and September 18, 2026 respectively.
| Parameter | DUSphone | INOSOFT |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | dus.net GmbH | INOSOFT AG |
In-app purchases
DUSphone
No in-app purchases
INOSOFT
No in-app purchases








