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

Jan. 26, 2026

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

In addition to free and paid memberships, Ondoku offers a Business Plan.

By subscribing to the Business Plan, you will be exempted from some of the usage methods prohibited in the Terms of Service.

In this article, we will introduce in detail what you can do with the Ondoku Business Plan.

Features of the Ondoku Business Plan

Ondoku offers a Business Plan that allows for a wide range of usage methods.

By using the Business Plan, you will be able to create and provide audio on behalf of third parties.
In addition, it becomes possible to embed audio into products and use it in broadcasting media.

The Business Plan is intended for sole proprietors and corporations, but of course, individuals can also subscribe.

Overview of the Ondoku Business Plan

The overview of the Business Plan is as follows:

  • 1-year valid license
  • Available for subcontracting and contracted work
  • One account can be shared with up to 10 devices belonging to others
  • Available for use in broadcasting media such as TV and radio
  • Audio use for goods and products intended for sale, lease, or commercial use, etc.
  • Audio created during the period can continue to be used without credit notation even after the license period ends

This is recommended for those who do not want to include credit notation at all, those who want to use it for contracted work, those who want to embed audio in products, and those who want to use it in broadcasting media.

Prohibited Acts Exempted by the Ondoku Business Plan

By subscribing to the Business Plan, the following prohibited acts are exempted:

  • 2. The act of using Ondoku with a paid account, then switching to a free account and continuing to use that audio without credit notation.
  • 3. The act of using Ondoku for products or services where credit notation is not possible with a paid account, then switching to a free account and continuing to use that audio.
  • 6. The act of lending one's account to a third party, or acts equivalent thereto.
  • 10. The act of embedding in products, using in broadcasting media, using for subcontracted work, or using for items to be sold, etc., on plans other than the Business Plan.

Please note that prohibited acts other than these are not exempted.

Please click here for other prohibited acts.

What You Can Do with the Business Plan and Usage Examples

Here are some examples of what you can actually do with the Business Plan.

  1. Use in subcontracting/commissioned work
    Example: Receiving a business commission and using the audio.
  2. Use in work commissioned to others
    Example: Specifying "Ondoku" for audio use when commissioning product development to others.
  3. Use in broadcasting media
    Example: Using as narration in a TV program.
    Example: Using for reading comments on a radio program.
  4. Distribution and sales of download content using Ondoku audio.
    Example: Distribution and sales on Podcast, Voicy, etc.
  5. Sales of teaching materials, etc., using Ondoku audio.
    Example: Selling cram school teaching materials.
  6. Audio use for products intended for sale, such as retail goods
    Example: Adding a voice guidance function to an internally developed product.
    Example: Using audio for CDs, DVDs, etc.
    Example: Directing to audio files via QR codes in instruction manuals, books, supplements, etc.
  7. Use in voice guidance and answering machine services
    Example: Using Ondoku for answering machine service audio where the usage period is not fixed.

If you are unsure which plan your desired usage method falls under, please feel free to contact us via the inquiry form.

Ondoku: Click here for inquiries

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

We offer two types of payment methods:

  1. Credit card / Debit card payment
  2. Direct bank transfer by issuing an invoice

Credit Card / Debit Card Payment

Click here to purchase with a credit card or debit card.

*In the case of payment by credit card or debit card, the plan and the number of characters available for reading will be reflected in about 1 to 3 minutes.
*Credit card and debit card payments are set to automatic renewal for 1-year periodic payments. If you do not wish for automatic renewal, please cancel after payment.

Direct Bank Transfer by Issuing an Invoice

If you wish for an annual contract via bank transfer, please contact us according to steps 1, 2, and 3 below.

Notes on Ondoku's Annual Contract via Bank Transfer

  • The plan will be activated within 24 hours after confirmation of payment.
  • If the username and the name of the remitter are different, the plan will not be activated unless you contact us.
  • Ondoku bank transfers are only available for annual payments.
  • There are no specific discounts for annual payments.
  • Refunds for mid-term cancellations are not available.
  • Mid-term plan changes cannot be accepted.
  • Quotations and invoices without payment or contact for more than 3 months will be deleted as expired.
  • Bank transfers do not renew automatically.
    If you wish to continue from the second year onwards, please issue an invoice again and make a payment.

    In that case as well, the plan will be activated within 24 hours after confirmation of payment. Please note that it is not a renewal from the expiration date.
    If you wish to renew from the expiration date, please contact us in advance via the inquiry form.
  • If you have a monthly contract, please cancel the monthly contract before making the transfer.
    If you remain contracted, double billing will occur.

Bank transfers are also explained in this article.

How to Issue an Invoice for Ondoku's Business Plan

invoice

  1. Register as a free member on Ondoku.
  2. You can issue an invoice from Ondoku's Settings under "Payment → Annual Bank Payment".
  3. Please check the contents of the invoice and transfer the billed amount to the designated account.
    * Invoices can only be issued when displayed in Japanese.
    * Transfer fees are to be borne by the customer.
    * If you have a monthly contract, please cancel the monthly contract before making the transfer.
    If you remain contracted, double billing will occur.

After confirming the transfer, the plan will be activated within 24 hours in principle.
If the username and the remitter's name are different, the payment cannot be confirmed. Please be sure to let us know via the inquiry form.

Quotations and invoices without payment or contact for more than 3 months will be deleted as expired.

*If you are in a hurry, we can activate the plan even before the funds arrive if you let us know the approximate transfer date.
In that case, please issue an invoice and contact us via the inquiry form.
Please note that if payment cannot be confirmed even after 3 days have passed since the informed transfer date, we will suspend the account.

*If the desired start date of use is after the transfer date, please inform us by email at least 3 business days in advance. We cannot accommodate requests if the contact and transfer occur out of order.

(Example) Payment on March 20th → Desired start date is April 1st
Please inform us by email 3 business days before March 20th.
We cannot accommodate the request even if you inform us by email on the day of March 20th.

For more details on issuing invoices, please see here.

Template for inquiring about "Desired start date"

Subject: Desired start date for annual contract

I am writing to inform you of the desired start date for my Ondoku annual contract.

Invoice Number:

Desired Start Date: [Year] [Month] [Day]

Scheduled Payment Date: [Year] [Month] [Day]
*Normally, the plan starts after payment, but by informing us of the scheduled payment date, advance use before payment is possible from the desired date.
*If the desired start date is after the transfer date, please inform us by email at least 3 business days in advance. We cannot accommodate requests if the contact and transfer occur out of order.

Invoice issuance history

After the plan is activated, you can download the receipt from the Invoice Issuance History.

Track Record of Ondoku Adoption

Track record of Ondoku adoption

The text-to-speech site "Ondoku", which started its service in May 2020, has been adopted and used by various companies, including:

Manufacturers, advertising agencies, web production companies, system development companies, online shop operators, consultants, professionals (lawyers, accountants, etc.), housing/real estate, food-related, education, universities, local governments/public organizations, and general organizations

In terms of the size of organizations and groups, it has been adopted not only by large companies with tens of thousands of employees but also by many small and medium-sized enterprises, small business owners, and individual users.

In particular, on YouTube, we have come to see many voice narrations using Ondoku.

In addition, it is being utilized in universities for online classes and other purposes.

Furthermore, it is also being used for automated phone responses and answering machine voices for companies, and for embedding audio into corporate products.

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

We will continue to strive for the development and improvement of the most user-friendly and convenient text-to-speech software for you.

Ondoku: Official Homepage

■ 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