# CMPLTE SMS vs SBK Flex

The clearest difference is update cadence: SBK Flex at every 4 weeks against CMPLTE SMS's every 20 months. CMPLTE SMS's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On price, 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.

CMPLTE SMS ships an update every 20 months, SBK Flex every 4 weeks. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | CMPLTE SMS | SBK Flex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cmplte-sms/id1527329230/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 51 MB | 117 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Textable](https://appshunter.io/developer/1395042035) | [SBK Telecom](https://appshunter.io/developer/1450446983) |

## What reviewers say

### CMPLTE SMS

[App page](https://appshunter.io/ios/app/cmplte-sms/id1527329230)

Communicate with customers using your business phone number for texts and picture messages. Manage customer databases, send promotional blasts, and allow easy customer contact without requiring them to download an app.

**Highlights:** Send/receive texts and picture messages, Use business phone number for texting, Access messages on multiple devices, Multiple users can access one number, Build customer database, Send promotional blasts, Customer opt-in for offers

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

**In-app purchases:** none


### SBK Flex

[App page](https://appshunter.io/ios/app/sbk-flex/id6747500332)

**Features:** Siri integration, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CMPLTE SMS free?

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

### Is SBK Flex free?

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

### Do CMPLTE SMS or SBK Flex have ads?

Neither CMPLTE SMS nor SBK Flex shows ads.

### Which is updated more often, CMPLTE SMS or SBK Flex?

CMPLTE SMS ships an update every 20 months, and SBK Flex every 4 weeks. Most recently, CMPLTE SMS was updated on October 20, 2026 and SBK Flex on October 5, 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.*