Comparison

PortSIP UC vs A Event 4U

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PortSIP UC

This SIP-based softphone allows users to make and receive calls and instant messages over Wi-Fi or cellular data. It integrates with a PBX for push notifications and offers advanced call management features, including video conferencing. Security is a priority with encrypted signaling and audio.

Highlights
  • SIP-based calling and messaging
  • Push notifications with PBX integration
  • Contact list integration
  • Multi-call management
  • Video conferencing
  • Secure call signaling and audio encryption
  • HD video calls up to 1080P
Features
Read full description

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.

About

A Event 4U

Read full description

A Event 4U helps you create polished event invitations, send guest links, and manage plans from your iPhone. Build an invite in minutes with ready-made flyer designs, event details, guest lists, RSVP tracking, time polls, sign-up lists, reminders, and optional event chat. Hosts can send invitations by text or email, monitor guest responses, and keep every update tied to the event instead of scattered across message threads. Guests can open their invite link, view event details, RSVP, vote on time options, claim sign-up items, and join event chat when enabled by the host. Subscriptions are governed by Apple’s standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aevent4u.com/privacy A Event 4U is built for birthdays, parties, dinners, team events, celebrations, and everyday plans that need a clear guest list and simple coordination.

Screenshots

PortSIP UC4 screens
A Event 4U4 screens

Verdict

The call

The clearest difference is device support: PortSIP UC at 3 against A Event 4U's 1. PortSIP UC also leads on iOS requirement (12.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PortSIP UC ships an update fortnightly, A Event 4U every 10 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 8 level
PortSIP UC versus A Event 4U: the parameters behind the verdict, then further details
ParameterPortSIP UCA Event 4U
PriceFreeFree
Rating4.1 (93 ratings) — better—
Positive reviews30.0% of reviews—
Number of ratings93 — better—
Update frequencyFortnightlyEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size52 MB30 MB
Age rating4+4+
DeveloperPortSIP Solutions, Inc.AiMLText

In-app purchases

None

PortSIP UC

No in-app purchases

None

A Event 4U

No in-app purchases

Questions

Is PortSIP UC free?
PortSIP UC is free to download, with no in-app purchases.
Is A Event 4U free?
A Event 4U is free to download, with no in-app purchases.
Do PortSIP UC or A Event 4U have ads?
Neither PortSIP UC nor A Event 4U shows ads.
Which is updated more often, PortSIP UC or A Event 4U?
PortSIP UC ships an update fortnightly, and A Event 4U every 10 days. Most recently, PortSIP UC was updated on October 20, 2026 and A Event 4U on October 11, 2026.

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