FusionSIP vs Sheerbit Callcenter Softphone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FusionSIP
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FusionSIP: The Mobile SIP Client for FusionPBX FusionSIP is the ideal mobile solution for users of the open-source FusionPBX phone system. Simple, flexible, and powerful - FusionSIP keeps you perfectly connected on the go. Highlights: Easy Setup: Configure via QR code or manual SIP data entry. Seamless Integration: Direct connection to FusionPBX via the EDNT Softphone API, which provides all necessary data. Cutting-Edge Technology: Supports push notifications, IPv4, and IPv6. Powerful Features: Extension selection Hold, call switching, and call forwarding (unattended & attended) Conference calling BLF and status display for colleagues Public and private phonebooks (local and server-based) Server-based call history, notes, and scheduling (private & public) Integrated chat (requires XMPP server) FusionPBX voicemail management Full fax support (send & receive) Manage call forwarding and block lists Customizable codecs, volume control, and Bluetooth support User-friendly design with Light & Dark Mode For Businesses & Offices: FusionSIP is also available in a desktop version, including interfaces to ERP and CRM systems. On request, the app can be custom-branded and tailored to your needs. Who is FusionSIP for? FusionSIP is specifically designed for businesses that use FusionPBX, providing a reliable, user-friendly solution for efficient communication—anytime, anywhere. For Resellers: Upon request, the softphone can be branded, customized, and discounted. Download now and experience the full power of FusionPBX in the palm of your hand! Important Note: The FusionSIP soft client can only be used in combination with the EDNT SoftPhone API and FusionPBX. For a generic softphone solution, EDNT offers the Smart-SIP-Phone, which works as a SIP client immediately with any PBX or phone system.
Sheerbit Callcenter Softphone
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Sheerbit VoIP Softphone – Free SIP Client & WebRTC Mobile Dialer for Enterprise Looking for a free VoIP softphone, SIP client, or WebRTC dialer for your business? Sheerbit VoIP WebRTC Softphone is a professional-grade mobile dialer built for enterprises, IT teams, call centers, and advanced users who need full control over their VoIP communication. Connect directly to your PBX, SIP server, or VoIP platform using secure WebRTC technology. Whether you need a business softphone, SIP dialer, or IP phone app – Sheerbit delivers enterprise-level reliability at zero cost. WHY CHOOSE SHEERBIT SOFTPHONE? - 100% Free VoIP Softphone – No hidden charges - Custom SIP Configuration – Connect to any SIP server or PBX - WebRTC-Based Calling – Modern, secure, low-latency calls - Enterprise-Ready – Built for business VoIP deployments - Call History & Logs – Track all incoming and outgoing calls - Contact Management – Integrated phonebook for quick dialing - Clean Professional UI – Simple, intuitive interface FREE APPS FROM SHEERBIT Sheerbit offers a complete suite of free VoIP communication apps: Mobile Softphone – iOS VoIP dialer (You're here!) WebPhone – Browser-based WebRTC softphone, no installation needed Desktop Dialer – Windows & Mac VoIP softphone application All apps support custom SIP configuration and connect to your existing PBX or VoIP infrastructure. IDEAL FOR - Business & Enterprise VoIP Users - Call Centers & Remote Teams - IT Administrators & System Integrators - Organizations with Custom PBX (Asterisk, FreeSWITCH, FreePBX, FusionPBX, Kamailio, OpenSIPS) - Developers & QA Teams Testing SIP/WebRTC - Anyone replacing traditional desk phones with a mobile VoIP dialer SUPPORTED PLATFORMS & USE CASES Works seamlessly with popular VoIP platforms: - Asterisk PBX - FreeSWITCH - FreePBX - FusionPBX - Kamailio - OpenSIPS - Custom SIP Servers BUILD YOUR OWN BRANDED SOFTPHONE Want your own white-label or custom-branded softphone app? Sheerbit Technologies specializes in building custom VoIP & WebRTC applications for: - VoIP Service Providers - Call Centers & Contact Centers - UCaaS & CPaaS Platforms - MVNO & Mobile Operators - Enterprise Communication Solutions We build custom Mobile Dialers, WebPhones, and Desktop Softphones – fully branded for your business. Contact us: info@sheerbit.com Download Sheerbit VoIP Softphone – Your free, secure, and enterprise-ready SIP & WebRTC mobile dialer. Visit sheerbit.com for free WebPhone and Desktop Dialer downloads. Developed by Sheerbit Technologies – Trusted VoIP & WebRTC Solutions Provider
Screenshots
Verdict
FusionSIP and Sheerbit Callcenter Softphone are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
FusionSIP ships an update every 3 weeks, Sheerbit Callcenter Softphone every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | FusionSIP | Sheerbit Callcenter Softphone |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 37 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | EDNT GmbH | Kaushik Parmar |
In-app purchases
FusionSIP
No in-app purchases
Sheerbit Callcenter Softphone
No in-app purchases
Questions
Is FusionSIP free?
Is Sheerbit Callcenter Softphone free?
Do FusionSIP or Sheerbit Callcenter Softphone have ads?
Which is updated more often, FusionSIP or Sheerbit Callcenter Softphone?
Other comparisons
