CMW App vs PortSIP ONE
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
CMW App
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The iPhone SIP Client is the latest offering by CallMyWay that makes entry into the iPhone apps stores. This newly developed iPhone VoIP Mobile Dialer enables any iPhone based mobile phone to make VoIP call by using the internet connection. It is especially developed with keeping the requirements of VoIP service providers in mind thatβs why iPhone SIP Client can easily integrate itself with any of the SIP servers. Give your iPhone mobile the power of VoIP calling with iPhone SIP Client.
PortSIP ONE
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PortSIP One is a client specifically designed for PortSIP PBX V22 or later versions, exclusively for iPhone. It leverages Wi-Fi or 4G/LTE connections, enabling users to make and receive calls as well as send instant messages. It supports push notifications, allowing users to receive calls and messages even if the app is force-closed. By accessing the iPhone's contact list, PortSIP One 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 conferencing with MCU (Multipoint Control Unit) support. PortSIP One prioritizes security and incorporates advanced settings for secure call signaling and audio encryption. The application supports high-definition video calls up to 1080P using H.264 and VP8 codecs, ensuring high-quality audio calls. Supported codecs include G.279, G.711a/u, Opus, AMR, AMR-WB, G.722.1, iLBC, GSM, and SPEEX-WB. PortSIP One supports group chats and allows the sending of voice, video, images, files, and more.
Screenshots
Verdict
The clearest difference is update cadence: PortSIP ONE at fortnightly against CMW App's every 5 weeks. CMW App's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support 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.
CMW App ships an update every 5 weeks, PortSIP ONE fortnightly. The most recent releases landed on October 4, 2026 and October 23, 2026 respectively.
| Parameter | CMW App | PortSIP ONE |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Fortnightly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 β better | 15.0 |
| Further details β not scored | ||
| Size | 84 MB | 147 MB |
| Age rating | 4+ | 4+ |
| Developer | CALLMYWAY NY S.A. | PortSIP Solutions, Inc. |
In-app purchases
CMW App
No in-app purchases
PortSIP ONE
No in-app purchases









