PortSIP UC vs Simple SMS Scheduler
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.
Simple SMS Scheduler
Schedule SMS messages to be sent at a future date or time. This app is useful for sending birthday greetings or meeting reminders without needing to remember to send them manually at the right moment.
- Schedule SMS messages
- Set future send dates
- Set future send times
- Reminder timer
- Send birthday greetings
- Send meeting reminders
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Simple SMS Scheduler allows you to send your sms some time or some date later with a timer of reminders. This app will come in handy if for example you want to greet your friends happy birthday or remind your colleagues about the meeting but it's still too early to send the sms. You can then set the timer on this app to remind you on the correct timing you would like to send the text messages. Download Simple SMS Scheduler for free and give this awesome app a try in sending your text messages!
Screenshots
Verdict
The clearest difference is rating: PortSIP UC at 4.1 against Simple SMS Scheduler's 1.8. PortSIP UC also leads on update cadence (every 2 weeks vs every 5 months) and review sentiment (31% vs 8%). Simple SMS Scheduler's advantage is iOS requirement (8.0 vs 15.0). On price, ratings volume, 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.
PortSIP UC holds the better App Store score, 4.1 against 1.8. Both are backed by a comparable volume of ratings — 93 and 64 respectively. Written reviews point the same way: 31% of PortSIP UC's written reviews are positive against 8% of Simple SMS Scheduler's.
PortSIP UC ships an update every 2 weeks, Simple SMS Scheduler every 5 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | PortSIP UC | Simple SMS Scheduler |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (93 ratings) — better | 1.8 (64 ratings) |
| Positive reviews | 31.0% of reviews — better | 8.3% of reviews |
| Number of ratings | 93 — better | 64 |
| Update frequency | Every 2 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | PortSIP Solutions, Inc. | Jian Yih Lee |
Customer experience
PortSIP UC
Simple SMS Scheduler
Bugs and requests
PortSIP UC
Not enough reviews yet to summarise bugs or requests.
Simple SMS Scheduler
Reported bugs
7 issues- Messages marked 'not sent' with no explanation
- App crashes when selecting contacts from list
- Text input field hidden under keyboard
- Full-screen advertisements interrupting workflow
- Incompatible with iOS 10 and later
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- No keyboard appearing in input fields
- App abandonment with no updates or fixes
Requested features
9 requests- Automatic message sending at scheduled time
- Recurring/repeating message scheduling
- Ability to edit scheduled messages
- More persistent alarm notifications
- Manual send option if alarm missed
Show 4 moreShow fewer
- Display sender's number in sent messages
- Better error reporting and troubleshooting
- Customer support system
- Reduce or eliminate advertisements
In-app purchases
PortSIP UC
No in-app purchases
Simple SMS Scheduler
No in-app purchases
Questions
Is PortSIP UC free?
Is Simple SMS Scheduler free?
Which has better reviews, PortSIP UC or Simple SMS Scheduler?
Do PortSIP UC or Simple SMS Scheduler have ads?
Which is updated more often, PortSIP UC or Simple SMS Scheduler?
Other comparisons
