CallOne Softphone vs Duzzcall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CallOne Softphone
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CallOne's begleitende Softphone-App zur CallOne-Plattform. Eine SIP-Softphone-App, die Push-Benachrichtigungen, HD-Voice und Video und vieles mehr unterstützt. Darüber hinaus bietet die CallOne-App - Kostenlose Anrufe zwischen App-Nutzern
Duzzcall
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A VoIP calling app.
Screenshots
Verdict
The clearest difference is device support: Duzzcall at 3 against CallOne Softphone's 1. On price, update cadence, ads and in-app purchases 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.
CallOne Softphone ships an update every 3 months, Duzzcall every 5 months. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.
| Parameter | CallOne Softphone | Duzzcall |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 97 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | CallOne GmbH | Duzzcall Pvt Ltd |
In-app purchases
CallOne Softphone
No in-app purchases
Duzzcall
No in-app purchases
Questions
Is CallOne Softphone free?
Is Duzzcall free?
Do CallOne Softphone or Duzzcall have ads?
Which is updated more often, CallOne Softphone or Duzzcall?
Other comparisons
