# Smart PBX vs Sansan

The clearest difference is update cadence: Sansan at weekly against Smart PBX's every 3 months. Sansan also leads on review sentiment (40% vs 12%). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Smart PBX ships an update every 3 months, Sansan weekly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Smart PBX | Sansan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (5 ratings)](https://appshunter.io/ios/app/sansan/id787058108/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 11.8% of reviews | **40.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | Free |
| Size | 30 MB | 171 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [NTT DOCOMO BUSINESS, INC.](https://appshunter.io/developer/291824371) | [Sansan, Inc.](https://appshunter.io/developer/444414925) |

## What reviewers say

### Smart PBX

[App page](https://appshunter.io/ios/app/smart-pbx/id781294337)

This business service enables VoIP calls and PBX functionalities on smartphones. It allows for internal and external calls using extension numbers across different locations and devices. Users can manage features like call forwarding and voicemail independently.

**Highlights:** VoIP communication on smartphones, Internal and external extension calls, PBX management (call forwarding, voicemail), FMC and single number reach, Device and multi-carrier flexibility

**Features:** Vision Pro support

**In-app purchases:** none


### Sansan

[App page](https://appshunter.io/ios/app/sansan/id787058108)

Centralize business card and contact data to build a shareable internal repository. Uncover sales opportunities and reduce costs by managing corporate information and sales history.

**Highlights:** Centralized business card data, Contact management, Corporate information repository, Sales history tracking, Uncover sales opportunities, Reduce costs

**In-app purchases:** none


## Frequently asked questions

### Is Smart PBX free?

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

### Is Sansan free?

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

### Do Smart PBX or Sansan have ads?

Neither Smart PBX nor Sansan shows ads.

### Which is updated more often, Smart PBX or Sansan?

Smart PBX ships an update every 3 months, and Sansan weekly. Most recently, Smart PBX was updated on September 18, 2026 and Sansan on September 21, 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.*