Detailed information on the business plan for the text-to-speech software "Ondoku." Features, pricing, etc.

Sept. 25, 2025

Detailed information on the business plan for the text-to-speech software "Ondoku." Features, pricing, etc.

Ondoku offers free membership, paid membership, and business plans.

When you sign up for a business plan, you will be exempt from some of the usage prohibited by the terms of use.

This article will take a closer look at what you can do with Ondoku's business plan.

Ondoku Business Plan Features

Ondoku offers a wide range of business plans.

By using the Business plan, you will be able to create and provide audio on behalf of third parties.
It can also be incorporated into products and used in broadcast media.

The business plan is designed for sole proprietors and corporations, but of course individuals can also sign up.

Ondoku's business plan overview

The outline of the business plan is as follows:

  • 1-year license
  • Can be used for outsourced and contract work
  • One account can be shared with up to 10 devices
  • Can be used on TV, radio and other broadcast media
  • Use of audio in merchandise or products for sale, lease, commercial use, etc.
  • Audio created during the license period can continue to be used without credit even after the license period ends.

This is recommended for those who do not want to use credits, those who want to use it for contract work, those who want to incorporate audio into products, and those who want to use it in broadcast media.

Prohibited activities exempted from liability under Ondoku's business plan

By signing up for a business plan, you are exempt from liability for the following prohibited acts:

  • 2. Using Ondoku with a paid account, then switching to a free account and continuing to use the audio without crediting the user.
  • 3. Using Ondoku for products or services that do not allow crediting with a paid account, then switching to a free account and continuing to use the audio.
  • 6. Lending your account to a third party or any other similar actions.
  • 10. Incorporating the content into products, using it in broadcast media, using it for commissioned work, using it for sale, etc., outside of the business plan.

Please note that any other prohibited acts will not be exempt from liability.

Please click here for other prohibited acts.

What you can do with the business plan, examples of use

We will introduce what you can actually do with a business plan, along with some examples of its use.

  1. Example of use in contract/outsourcing work : Receiving outsourcing work and using voice
  2. Example of use in outsourcing work : When outsourcing your company's product development to another party, specify the voice as "Ondoku" and use it.
  3. Broadcast media use example: Used as narration in a television program.
    Example: Used to read out comments on a radio program.
  4. Distribution and sale of downloadable content using Ondoku's audio.
    Example: Distribution and sales on Podcast, Voicy, etc.
  5. Sales of educational materials using Ondoku audio.
    Example: Selling cram school teaching materials
  6. Example of using voice for products intended for sale, such as retail goods : Adding a voice guidance function to a product developed in-house.
    Example: Using audio on a CD, DVD, etc.
    Example: Use a QR code in a manual, book, or appendix to direct users to an audio file.
  7. Usage example for voice guidance and answering machine services : Ondoku is used for the voice of an answering machine service that does not have a fixed usage period.

If you are unsure which plan applies to your desired usage, please feel free to contact us.

Ondoku: Contact us here

Business Plan Pricing

  • Basic: 2.4 million characters per year → 120,000 yen
  • Value: 5.4 million characters per year → 240,000 yen
  • Premium: 12 million characters per year → 360,000 yen

Payment method

  1. Credit card and debit card payments
  2. Invoice and direct bank transfer

There are two types available:

Credit card and debit card payments

Purchase with credit card or debit card here

*If you pay by credit card or debit card, the plan and number of characters that can be read aloud will be reflected in approximately 1 to 3 minutes.
*Payments made with credit or debit cards are automatically renewed for a one-year subscription. If you do not wish for automatic renewal, please cancel after payment.

Invoice and direct bank transfer

If you would like to make an annual contract by bank transfer, please contact us following steps 1, 2, and 3 below.

Important points to note when paying by bank transfer with Ondoku for an annual contract

  • Once payment is confirmed, your plan will be activated within 24 hours.
  • If the username and the transfer name are different, the plan will not be activated unless you contact us.
  • Ondoku only accepts bank transfers for annual payments.
  • There is no discount for paying annually.
  • No refunds will be given for cancellations midway.
  • We cannot accept changes to plans mid-way.
  • Any quotes or invoices that have not received payment or contact from you for more than three months will be deemed expired and will be deleted.
  • Bank transfers are not automatically renewed.
    If you wish to continue after the second year, please issue a new invoice and make payment.

    In this case, the plan will be activated within 24 hours after payment confirmation. Please note that this is not a renewal on the expiration date.
    If you wish to update the expiration date, please contact us in advance.
  • If you have a monthly contract, please cancel it before making the transfer.
    If you leave the contract, you will be charged twice.

Bank transfers are explained in this article.

How to issue invoices for Ondoku's Business plan

invoice

  1. Register for a free membership at Ondoku
  2. You can issue an invoice by going to Ondoku's settings and selecting "Payment → Annual Bank Payment ."
  3. Please check the details of the invoice and transfer the amount due to us to the designated account.
    *Invoices can only be issued in Japanese.
    *Transfer fees are the responsibility of the customer.
    *If you have a monthly contract, please cancel it before making the transfer.
    If you leave the contract, you will be charged twice.

Once your payment is confirmed, your plan will be activated within 24 hours.
If your username and the name of the person making the transfer are different, we will not be able to confirm the payment. Please be sure to let us know by contacting us.

Any quotes or invoices that have not received payment or contact from you for more than three months will be deemed expired and will be deleted.

*If you are in a hurry, we can activate your plan even if the payment has not yet arrived if you let us know the approximate date of payment.
In that case, please issue an invoice and then contact us via the inquiry form.
If we are unable to confirm your payment within three days of the notified payment date, your account will be suspended.

*If the desired start date is after the payment date, please notify us by email at least three business days in advance. We cannot accommodate requests if the notification and payment are made before or after the date of the request.

(Example) If you deposit on March 20th, you would like to start using the service on April 1st. Please let us know by email three business days before March 20th.
Please note that we will not be able to respond if you notify us by email on March 20th.

For more information on invoicing, please click here.

Template for inquiries regarding "Desired start date of use"

Subject: Desired start date for annual contract

Please inform us of your annual contract with Ondoku and the date you would like to start using the service.

Invoice Number:

Desired start date: ○ year ○ month ○ day

Expected payment date: XX/XX/XX *Normally, the plan starts after payment is made, but if you let us know the expected payment date, you can start using the plan on a date before payment.
*If the desired start date is after the payment date, please notify us by email at least three business days in advance. We cannot accommodate requests if the notification and payment are made before or after the date of the request.

Invoice Issuance History

After your plan is activated, you can download your receipt from your billing history .

Ondoku implementation track record

Ondoku implementation track record

Ondoku, a text-to-speech website that began service in May 2020,

Manufacturers, advertising agencies, web production companies, system development companies, online shop operators, consultants, professionals, housing/real estate, food and beverage related, education, universities, local governments/public organizations, general organizations

It has been introduced and used by a variety of companies, including:

Our services are widely adopted by organizations and groups with more than tens of thousands of employees, as well as by small and medium-sized enterprises, small businesses, and individual users.

In particular, we are now seeing a lot of audio narration using Ondoku on YouTube.

It is also being used at universities for online classes.

It is also used for automated telephone answering and answering machine voice messages for companies, and for incorporating voice into corporate products.

You may hear Ondoku's audio in unexpected places close to you.

We will continue to work hard to develop and improve the most user-friendly and convenient text-to-speech software for you.

Ondoku: Official website

■ AI voice synthesis software "Ondoku"

"Ondoku" is an online text-to-speech tool that can be used with no initial costs.

  • Supports approximately 50 languages, including Japanese, English, Chinese, Korean, Spanish, French, and German
  • Available from both PC and smartphone
  • Suitable for business, education, entertainment, etc.
  • No installation required, can be used immediately from your browser
  • Supports reading from images

To use it, simply enter text or upload a file on the site. A natural-sounding audio file will be generated within seconds. You can use voice synthesis up to 5,000 characters for free, so please give it a try.

Text-to-speech software "Ondoku" can read out 5000 characters every month with AI voice for free. You can easily download MP3s and commercial use is also possible. If you sign up for free, you can convert up to 5,000 characters per month for free from text to speech. Try Ondoku now.
HP: ondoku3.com
Email: ondoku3.com@gmail.com
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"Ondoku" is a Text-to-Speech service that anyone can use for free without installation. If you register for free, you can get up to 5000 characters for free each month. Register now for free