Terms of Service

You must be at least 13 years of age (or the applicable minimum age of digital consent in your jurisdiction) to use the Service. By using the Service, you represent that you meet this requirement. If you are using the Service on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

Sumi is a voice-to-text application currently available on macOS, with planned expansion to iOS, Windows, and Android. The Service includes:

• On-device features: speech recognition, transcription, and AI processing that run entirely on your local machine. No data is transmitted to external servers. No internet connection is required.
• Cloud features: speech transcription and meeting recording processed via our servers and third-party services. Cloud features require a Google account and an active subscription (except free-tier usage as described in Section 7).

We reserve the right to modify, suspend, or discontinue any part of the Service at any time with reasonable advance notice where practicable. We are not liable for any modification, suspension, or discontinuation.

Cloud features require sign-in with a Google account via Firebase Authentication. By signing in, you authorize us to receive your Google account email, display name, and a unique user identifier. You are responsible for all activity that occurs under your account. Notify us immediately at [email protected] if you suspect unauthorized use.

On-device features do not require an account and are available to all users at no cost.

Cloud features are available under the following subscription tiers:

Annual plans include 1–2 months free. Prices are in USD. On-device features are not counted against any quota. Quotas reset on the first of each calendar month (UTC).

The Community plan provides limited cloud voice transcription at no cost. Beta Trial access, where offered, provides expanded cloud features for a limited period. We reserve the right to modify or discontinue free and trial tiers at any time with reasonable notice. Continued access to free or trial features is not guaranteed.

You agree not to use the Service to:

• Record, transcribe, or process any conversation without the knowledge and consent of all participants, where required by applicable law
• Upload audio containing illegal content, including material that is defamatory, obscene, or that infringes third-party rights
• Circumvent, abuse, or share credentials to exceed your plan's quotas or access features not included in your plan
• Attempt to reverse engineer or extract source code from the cloud API or backend infrastructure
• Probe, scan, or test the vulnerability of the Service or circumvent any security or authentication measures
• Use automated scripts or bots to call the API in a manner that exceeds normal usage or places unreasonable load on our infrastructure
• Resell, sublicense, or provide API access to third parties without our written consent
• Violate any applicable local, national, or international law or regulation

We reserve the right to suspend or terminate accounts that violate these rules without prior notice. This includes, but is not limited to, accounts exhibiting abnormal or automated usage patterns inconsistent with personal use, or accounts used for any unlawful purpose. Accounts terminated for violations of these rules are not eligible for any refund of prepaid or unused subscription fees, regardless of the remaining subscription period.

You retain full ownership of all audio recordings and transcription text you produce using Sumi. We claim no intellectual property rights over your content.

You grant us a limited, non-exclusive license to process your content solely as necessary to provide the Service. Where you have consented to storage and AI training use (as described in our Privacy Policy), you additionally grant us a non-exclusive license to use your audio and transcription data to improve the accuracy of our speech models. You may withdraw this consent at any time by deleting your recordings or contacting us.

You are solely responsible for ensuring your recordings comply with applicable laws regarding consent, wiretapping, and privacy. We are not responsible for any loss of locally stored content due to device failure or software errors.

Except for the open-source desktop application governed by GPLv3, all content on the Sumi website and cloud services — including text, graphics, logos, UI design, and the cloud API — is owned by or licensed to Sumi Dev. You may not reproduce, distribute, or create derivative works from this content without our prior written consent.

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

We do not warrant that: (a) the Service will be uninterrupted, error-free, or secure; (b) transcription output will be accurate, complete, or suitable for any particular purpose; or (c) any errors will be corrected. You are solely responsible for verifying transcription output before relying on it for professional, legal, medical, or other consequential purposes.

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL SUMI DEV, ITS AFFILIATES, LICENSORS, OR SERVICE PROVIDERS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING LOSS OF PROFITS, DATA, GOODWILL, OR BUSINESS OPPORTUNITY, ARISING OUT OF OR IN CONNECTION WITH THESE TERMS OR YOUR USE OF THE SERVICE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

TO THE EXTENT NOT PROHIBITED BY MANDATORY PROVISIONS OF APPLICABLE LAW (INCLUDING THE CONSUMER PROTECTION ACT OF THE REPUBLIC OF CHINA), OUR TOTAL AGGREGATE LIABILITY TO YOU FOR ALL CLAIMS SHALL NOT EXCEED THE LESSER OF: (A) THE TOTAL FEES YOU PAID TO US IN THE THREE MONTHS IMMEDIATELY PRECEDING THE CLAIM; OR (B) NTD 300.

Some jurisdictions do not permit certain liability exclusions. In such jurisdictions, our liability is limited to the greatest extent permitted by applicable law.

To the extent permitted by applicable law, you agree to indemnify and hold harmless Sumi Dev from and against any third-party claims, liabilities, damages, losses, and expenses (including reasonable legal fees) arising from your intentional misconduct or gross negligence in connection with: (a) your material violation of these Terms; (b) your infringement of any third party's intellectual property or privacy rights; or (c) your recording of conversations without legally required consent.

These Terms are governed by the laws of the Republic of China (Taiwan), without regard to its conflict-of-law principles.

Any dispute shall first be attempted to be resolved through good-faith negotiation for at least 30 days. If unresolved, it shall be submitted to the exclusive jurisdiction of the courts in Taipei, Taiwan. We reserve the right to seek injunctive relief in any court of competent jurisdiction to protect our intellectual property.

We may update these Terms at any time. For material changes — including changes to pricing, refund policies, or data use — we will provide at least 30 days' notice by email or in-app notification before the changes take effect. Non-material changes take effect immediately upon posting.

Your continued use of the Service after the effective date constitutes acceptance of the revised Terms. If you do not agree, you must cancel your subscription and stop using the Service before the changes take effect.

• Entire agreement. These Terms, together with our Privacy Policy, constitute the entire agreement between you and us regarding the Service.
• Severability. If any provision is found invalid or unenforceable, it will be modified to the minimum extent necessary; remaining provisions continue in full force.
• No waiver. Failure to enforce any right at any time does not constitute a waiver of that right.
• Assignment. You may not assign your rights without our prior written consent. We may assign our rights and obligations, including in connection with a merger or acquisition, with reasonable website notice.
• Force majeure. We are not liable for failure or delay due to causes beyond our reasonable control.
• Relationship of parties. These Terms do not create any partnership, employment, or agency relationship.

Questions about these Terms: