# PortSIP UC vs Simple SMS Scheduler

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.

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.

## The numbers

| Metric | PortSIP UC | Simple SMS Scheduler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (93 ratings)](https://appshunter.io/ios/app/portsip-uc/id426903818/reviews)** | [1.8 (64 ratings)](https://appshunter.io/ios/app/simple-sms-scheduler-auto-text-message-sending-timer/id1055032368/reviews) |
| Number of ratings | **93** | 64 |
| Positive reviews | **31.0% of reviews** | 8.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free | Free |
| Size | 41 MB | 4 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [PortSIP Solutions, Inc.](https://appshunter.io/developer/426903821) | [Jian Yih Lee](https://appshunter.io/developer/993496554) |

## What reviewers say

### PortSIP UC

[App page](https://appshunter.io/ios/app/portsip-uc/id426903818)

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.

**Highlights:** SIP-based softphone, Voice and video calls, Instant messaging, Push notifications, Contact list integration, Multi-call management, Video conferencing

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Simple SMS Scheduler

[App page](https://appshunter.io/ios/app/simple-sms-scheduler-auto-text-message-sending-timer/id1055032368)

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.

**Highlights:** Schedule SMS messages, Set future send dates, Set future send times, Reminder timer, Send birthday greetings, Send meeting reminders

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ Easy scheduling interface
- 📝 Ability to prepare messages in advance
- ⏰ Reminder functionality for scheduled messages
- 🎯 Simple and straightforward to set up

**What reviewers complain about**

- 🚫 Messages fail to send automatically
- 📱 Only provides reminders, doesn't auto-send
- 🐛 Frequent app crashes
- 📺 Excessive ads and pop-ups
- ✏️ Cannot edit scheduled messages

**Reported bugs**

- 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

**Requested features**

- 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


## Frequently asked questions

### Is PortSIP UC free?

PortSIP UC is free to download, with no in-app purchases.

### Is Simple SMS Scheduler free?

Simple SMS Scheduler is free to download, with no in-app purchases.

### Which has better reviews, PortSIP UC or Simple SMS Scheduler?

PortSIP UC is rated higher. PortSIP UC averages 4.1 out of 5 from 93 ratings, while Simple SMS Scheduler averages 1.8 from 64 ratings.

### Do PortSIP UC or Simple SMS Scheduler have ads?

Neither PortSIP UC nor Simple SMS Scheduler shows ads.

### Which is updated more often, PortSIP UC or Simple SMS Scheduler?

PortSIP UC ships an update every 2 weeks, and Simple SMS Scheduler every 5 months. Most recently, PortSIP UC was updated on November 6, 2026 and Simple SMS Scheduler on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*