FusionSIP vs Connect.
Price, ratings, monetisation and update history for both apps, side by side β 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 communicationβanytime, 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.
Connect.
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Dialogx Connect. is a market-leading Softphone client application. A feature-rich mobile and desktop business phone including both unattended and attended transfers, conferencing as well as video and messaging. Features include: - Full White-label service - Automated Provisioning - Full Support Team - Voice - HD Quality Voice - Attended Transfer - Unattended Transfer - Call Recording (Server Side) - Voice Conferencing (up to 100 people) - Video* - Messaging*
Screenshots
Verdict
The clearest difference is iOS requirement: Connect. at 12.0 against FusionSIP's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· 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 2 weeks, Connect. every 3 weeks. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.
| Parameter | FusionSIP | Connect. |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks β better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPod |
| Requires iOS | 15.0 | 12.0 β better |
| Further details β not scored | ||
| Size | 11 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | EDNT GmbH | DialogX |
In-app purchases
FusionSIP
No in-app purchases
Connect.
No in-app purchases









