Smart PBX vs Sansan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart PBX
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.
- VoIP communication on smartphones
- Internal and external extension calls
- PBX management (call forwarding, voicemail)
- FMC and single number reach
- Device and multi-carrier flexibility
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【注意事項】 「Smart PBX」は法人向けサービスであるため、ご利用頂くにはNTTドコモビジネスの営業担当経由のお申込みが必要になります。 【概要】 「Smart PBX」は、お客様がお使いのスマートフォン上で、VoIP通信をご利用いただけるサービスです。本サービスをご利用いただくことで、拠点内だけでなく、拠点間や、外出先とも内線番号での通話が可能となります。 また、内線番号、代表グループ、転送、留守番電話等の設定をお客様自身で変更可能とし、ワンストップでPBX機能の管理ができるサービスです。 特徴①：FMCに対応した内線通話機能及びPBX機能をご利用いただけます。 特徴②：スマホ、PCなど多様なデバイスで利用可能となっております。(デバイスフリー) 特徴③：モバイルもマルチキャリアに対応しております。(キャリアフリー) 特徴④：既存のPBXを活用した構成にすることも可能となっております。 【主な機能】 ・内線通話(発信・着信) ・FMC機能(シングルナンバーリーチ機能) ・PBX機能(代表機能、転送機能、留守番電話機能)
Sansan
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.
- Centralized business card data
- Contact management
- Corporate information repository
- Sales history tracking
- Uncover sales opportunities
- Reduce costs
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Sansan – Manage your contacts, maximize your business Sansan is the business database that centralizes business card and contact data, corporate information, and sales history, as users build a unique, shareable, internal repository that uncovers sales opportunities and reduces costs.
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Verdict
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.
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.
Smart PBX ships an update every 3 months, Sansan weekly. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.
| Parameter | Smart PBX | Sansan |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (5 ratings) — better |
| Positive reviews | 11.8% of reviews | 40.4% of reviews — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 30 MB | 171 MB |
| Age rating | 4+ | 4+ |
| Developer | NTT DOCOMO BUSINESS, INC. | Sansan, Inc. |
Customer experience
Smart PBX
Sansan
In-app purchases
Smart PBX
No in-app purchases
Sansan
No in-app purchases
