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03plus

03plus

by Magrex

0 ratings
65 reviews
💼 Business
🌐 Social Networking
Free

Details

Released
March 28, 2015
Updated
October 20, 2026

Features

Developer

Magrex
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03plus screenshot #1 for iPhone
03plus screenshot #2 for iPhone
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About

This app allows you to use a landline number on your smartphone without complex setup. Obtain a fixed-line number with a local area code and make/receive calls and send/receive faxes directly from your device. It's ideal for remote work and managing business communications efficiently.

✓Use landline numbers on smartphone
✓Obtain local area codes nationwide
✓Send and receive faxes via app
✓Supports remote work and telecommuting
✓No construction or phone lines needed
✓Fast number acquisition (as short as 10 minutes)
Show original description

What's New in 03plus

3.3.5

October 20, 2026

軽微な修正をしました。

User reviews

Most RecentHighest RatedLowest Rated

控えめにいって最悪です

金融機関からの重要な電話を着信する事が出来ずに非常に困っております。

毎回スマホからかけ直すので本人確認が必要で手間です。

以前問い合わせて対処法聞いて試しましたが改善せず。

一度この番号で登録してしまっているので変更も面倒で本当に迷惑しています。
Uumurajdwurlmwyd

クソアプリ

着信受け取れないことが多い。
電話つながっても相手に声が届かないことがある。

料金だけあげて
品質は改善されないクソアプリです。

新規導入の場合はやめた方がいいです
Hhika54

微妙

Apple Watchで着信のリアルタイム反応がなしなので、着信が終わった後に気づく事になる。。。
。。もう一個さん。

全く問題なく使用できています。むしろ快適です！

レビューを見てかなり心配していましたが、全く問題なく使用できます。たった今新しいIOS対応になったためアップデートになりましたが、このまま不具合なく使えるように願っています！
Nnonmonmon

iPhoneで、アプリが常駐しない

動作機種、動作環境を確認した上、導入しましたが、実用に耐えなかったため、2週間程で、解約しました。
電話でのサポートは丁寧で、親身になって頂いたと感じましたが、メールでの対応は、そうは感じませんでした。
解約のルールが特殊なので、規約をしっかり読んでから、契約することをお勧めします。
Ttakumi（43）
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FAQ

How quickly can I get a phone number with 03plus?

You can obtain a phone number with a local area code in as little as 10 minutes through web application. This rapid setup allows for immediate use of your new fixed-line number.

Does 03plus require any special phone lines or installation?

No, 03plus does not require any special phone lines or construction. The service operates entirely through your smartphone app, making it convenient and cost-effective.

Can I use 03plus for sending and receiving faxes?

Yes, the app supports sending and receiving faxes, eliminating the need for a physical fax machine in your office. This feature is integrated directly into the application.

Is 03plus suitable for remote work or telecommuting?

Absolutely. 03plus is ideal for telecommuting and remote work, allowing you to make and receive calls using your fixed-line number from anywhere. It also supports office free address initiatives.

What kind of phone numbers can I get with 03plus?

You can obtain fixed-line numbers with major local area codes from 46 regions across Japan, as well as 050 numbers. This provides a wide range of options to suit your business needs.

Does 03plus have any ads?

No, 03plus does not contain advertisements. The application is free to use and does not display any in-app ads.

Can multiple people use the same phone number with 03plus?

Yes, one phone number can be used by multiple people. Features like park holding and internal calls are available, similar to a business phone system.

What are the optional features available with 03plus?

Optional features include voicemail, out-of-hours announcements, a web phonebook, call forwarding, and internet fax. These can enhance your communication capabilities.