Notice of Price Changes Due to Incorporation for Ondoku Users

Jan. 26, 2026

Notice of Price Changes Due to Incorporation for Ondoku Users

We would like to express our sincere gratitude for your continued patronage.

Today, we are announcing the incorporation of Ondoku operations and a price revision associated with this incorporation.

Notice of Incorporation

We are pleased to announce that the operation of Ondoku has changed from its status as a sole proprietorship, "comomo,"

and as of August 30, "Kabushikigaisha San" has been newly established.

We are deeply grateful for this, which is entirely due to your warm support.

In the future, as a service that aims to be the most user-friendly speech synthesis tool connecting AI, people, and things,

we will give back to our users through various functional updates to make it more convenient than ever before,

and by providing enhanced security for safe and secure use.

We will make every effort to meet your expectations.

We humbly request your continued support and patronage.

Company Website

Notice of Price Revision

With the incorporation, we will now charge a 10% consumption tax on usage fees, which was not previously charged.

Revision Date

Thursday, September 15, 2022

Applicable To

  • Current paid plan subscribers
  • Those who will subscribe to a paid plan in the future

Revision Details

The following new prices will apply to new purchases and the next contract renewal date after the revision date.

  • Basic Plan/month: 1,078 yen including tax (980 yen)
  • Value Plan/month: 2,178 yen including tax (1,980 yen)
  • Premium Plan/month: 3,278 yen including tax (2,980 yen)
  • In addition, a 10% consumption tax will be charged for all other paid plans.

If you are currently subscribed to a monthly paid plan, by switching to an "Annual Contract" by the day before the revision date,

you will be able to use the service at effectively the same price as before on a monthly basis.
(Payment will be for one year in a lump sum. Annual contracts are not recurring payments.)

Please consider this option.

If you wish to change to an annual contract,

【Credit Card/Debit Card Payment】
・Desired plan name:
・Contract account ID (email address):
・Request for annual contract via credit card payment
Please contact us at this email address.

【Bank Transfer】
Please log in to your account and

complete the procedure from the "Annual Bank Payment (Invoice Issuance)" screen.

For details, please check "How to pay for Ondoku's paid plans by bank transfer."

■ 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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