PortSIP UC vs Core4VoIP Mobile Dialer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PortSIP UC
This SIP-based softphone app enables voice and video calls, along with instant messaging, using Wi-Fi or cellular data. It integrates with a PBX system for push notifications and offers advanced call management features. Security and high-definition media are prioritized.
- SIP-based softphone
- Voice and video calls
- Instant messaging
- Push notifications
- Contact list integration
- Multi-call management
- Video conferencing
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PortSIP Softphone is a SIP-based softphone application designed for iPhone. It utilizes Wi-Fi or 4G/LTE connections to enable users to make and receive calls and instant messages. When integrated with PortSIP PBX, PortSIP Softphone supports push notifications, allowing users to receive calls and messages even when the application is force terminated. With access to the iPhone's contact list, PortSIP Softphone offers a user-friendly interface for efficient communication management. It supports multiple calls, enabling users to switch between calls, merge and split calls, and perform attended and unattended transfers. Additionally, it supports video conferences with MCU (Multipoint Control Unit) support. PortSIP Softphone prioritizes security and incorporates advanced settings for secure call signaling and audio encryption. The application supports high-definition video calls up to 1080P with H.264 and VP8 codecs and ensures high-quality audio calls. The supported codecs include G.279, G.711a/u, Opus, AMR, AMR-WB, G.722.1, iLBC, GSM, and SPEEX-WB.
Core4VoIP Mobile Dialer
This SIP dialer for iPhone is optimized for low bandwidth environments. It transmits voice data as IP packets over the internet, ensuring functionality even in areas with limited connectivity. Compatible with iOS 5 and above.
- SIP dialer functionality
- Optimized for low bandwidth
- IP packet voice transmission
- iOS 5+ compatibility
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Core4VoIP dialer is a SIP dialer for iPhone. It is designed to work in low bandwidth areas. Voice goes as IP packets through Internet. You can successfully run this application in any iOS 5 or higher device.
Screenshots
Verdict
The clearest difference is rating: Core4VoIP Mobile Dialer at 5.0 against PortSIP UC's 4.1. Core4VoIP Mobile Dialer also leads on iOS requirement (8.0 vs 15.0). PortSIP UC's advantage is ratings volume (93 vs 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.
Core4VoIP Mobile Dialer holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: PortSIP UC has 93 ratings behind it against 1, so its average is the more settled of the two.
PortSIP UC ships an update every 2 weeks, Core4VoIP Mobile Dialer monthly. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.
| Parameter | PortSIP UC | Core4VoIP Mobile Dialer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (93 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 31.0% of reviews | — |
| Number of ratings | 93 — better | 1 |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | PortSIP Solutions, Inc. | Divine IT Limited |
Customer experience
PortSIP UC
Core4VoIP Mobile Dialer
In-app purchases
PortSIP UC
No in-app purchases
Core4VoIP Mobile Dialer
No in-app purchases
Questions
Is PortSIP UC free?
Is Core4VoIP Mobile Dialer free?
Which has better reviews, PortSIP UC or Core4VoIP Mobile Dialer?
Do PortSIP UC or Core4VoIP Mobile Dialer have ads?
Which is updated more often, PortSIP UC or Core4VoIP Mobile Dialer?
Other comparisons
