# CallStar vs Mobex SMS

The clearest difference is update cadence: Mobex SMS at every 6 weeks against CallStar's every 4 months. CallStar's advantage is iOS requirement (8.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for CallStar against 5.0 for Mobex SMS. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

CallStar ships an update every 4 months, Mobex SMS every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CallStar | Mobex SMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/callstar/id533366309/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/mobex-sms/id1619093039/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 14 MB | 45 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nordcom Oy](https://appshunter.io/developer/533366312) | [Mobex, Incorporated](https://appshunter.io/developer/1619093041) |

## What reviewers say

### CallStar

[App page](https://appshunter.io/ios/app/callstar/id533366309)

Manage inbound business calls, utilize versatile number services, and access teleconference features directly from your mobile device. Optimize outbound calls with Least Cost Routing. Requires configuration from a CallStar service provider.

**Highlights:** Inbound call management, Versatile number service, Teleconference features, Least Cost Routing (LCR), FLCR for international calls

**Features:** macOS Compatibility

**In-app purchases:** none


### Mobex SMS

[App page](https://appshunter.io/ios/app/mobex-sms/id1619093039)

Send and receive SMS messages on iOS devices using a virtual number that syncs with your desktop application. Integrate with Microsoft 365 for secure, single sign-on access and text contacts from Outlook or your employee directory. Archive messages for compliance.

**Highlights:** Send/receive SMS on iOS, Virtual number support, Microsoft 365 integration, Text Outlook/Employee Directory contacts, Synchronized desktop app, Secure message storage, Automatic message archiving

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CallStar free?

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

### Is Mobex SMS free?

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

### Which has better reviews, CallStar or Mobex SMS?

CallStar and Mobex SMS are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do CallStar or Mobex SMS have ads?

Neither CallStar nor Mobex SMS shows ads.

### Which is updated more often, CallStar or Mobex SMS?

CallStar ships an update every 4 months, and Mobex SMS every 6 weeks. Most recently, CallStar was updated on November 1, 2026 and Mobex SMS on November 3, 2026.

---

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