Refund Policy

日本語

This policy applies to all paid products and services purchased through Apertis (apertis.ai) and related platforms, operated by Stima AI, LLC..

Applicable services include:

• Apertis API subscription plans (Lite, Pro, Max)
• Apertis API credit top-ups (Pay-As-You-Go)
• StimaChat credit purchases
• Playground, LJDIR-TW, and other related services

1. Self-Service Cancellation

You may cancel your subscription at any time from your account Settings page. Upon cancellation:

• Your subscription remains active until the end of your current billing period.
• For monthly plans, you retain full access through the end of the current month.
• For quarterly or yearly plans, you retain full access through all remaining monthly cycles until your next billing date.
• No further charges will be applied after the current billing period ends.
• You may reactivate your subscription at any time before the billing period ends.
• Plan changes (upgrade and downgrade) are governed by separate rules. See Section 1.5 below for how upgrades and downgrades are processed.

1.5 Subscription Plan Changes

(1) Upgrades

When you upgrade your subscription:

• The new plan takes effect immediately and is charged in full at the moment of upgrade.
• Your previous plan's remaining time and unused monthly quota are forfeited (not refunded, not carried over).
• Your billing cycle resets — the next charge occurs 30 days from the upgrade date.

(2) Annual Plan Upgrades

When upgrading mid-cycle from an annual plan:

• The remaining prorated value of your annual plan (paid amount × remaining days / 365) is applied as a non-refundable Stripe account credit.
• Future invoices automatically deduct from this credit before charging your payment method.
• This credit cannot be withdrawn or converted to cash.

(3) Downgrades

• Downgrades take effect at the end of your current billing period.
• No immediate charge or refund occurs.
• You retain full access and quota until the period ends.

2. Refund Eligibility

(1) Subscription Plans (3-Day Window)

For first-time subscriptions, you may request a refund within 3 calendar days of the payment date, subject to the following conditions:

• Refund amounts are calculated based on the proportion of your monthly quota used. For example, if you have used 20% of your quota, you will receive a refund of 80% of the amount paid.
• Once a refund is processed, your subscription is immediately cancelled and any remaining quota is revoked.

Plan upgrades are NOT eligible for the 3-day refund window. When you upgrade, the new plan is charged in full and the previous plan's remaining time and quota are forfeited per Section 1.5. If you upgrade in error, you may downgrade to the previous tier (effective at next renewal) but the upgrade charge is non-refundable.

(2) One-Time Purchases (API Credit Top-Ups, StimaChat Credits, etc.)

• If no credits or quota have been used, a full refund may be requested within 3 calendar days of payment.
• Partially used purchases are generally non-refundable. In special circumstances, a refund minus the used portion may be approved upon review.

(3) General Refund Conditions

Refunds may also be requested in the following situations:

• Service is unavailable due to a major technical failure on Apertis systems.
• Unauthorized third-party use of your account (supporting documentation required).
• Duplicate charges or accidental purchases made within 24 hours (supporting documentation required).

3. Non-Refundable Situations

Refunds are not available in the following cases:

• More than 3 calendar days have passed since the payment date.
• The request is for a recurring renewal charge (not a first-time subscription).
• Quota or time forfeited under the standard upgrade flow (Section 1.5(1)). Upgrades automatically forfeit unused old-plan resources; this forfeiture is by design and is not eligible for refund.
• Services obtained through promotional offers, discount codes, or special campaigns.
• Issues caused by your own network environment, device, or third-party software.
• Payments that violate Stripe's refund policies.
• Force majeure events (natural disasters, government actions, strikes, etc.).
• Enterprise users with separate contractual agreements — such agreements take precedence.

4. Refund Process & Processing Time

To request a refund:

• Send an email to hi@apertis.ai with your account email address and reason for the request.
• Our support team will review your application within 3 business days.
• Approved refunds are issued to the original payment method via Stripe.

Estimated processing times:

• Credit cards: 7–14 business days after approval.
• Electronic payments (Apple Pay, Google Pay, etc.): 7–14 business days.
• Other payment methods: Up to 30 business days.
• Stripe processing fees are borne by Stima AI, LLC. and are not passed on to users.

5. Service Interruption Compensation

• Continuous outage of 24–48 hours: Service extension equivalent to twice the interruption period.
• Continuous outage exceeding 48 hours: Service extension equivalent to three times the interruption period, or a refund upon request.

6. Policy Changes

Significant changes to this policy will be communicated via website announcement and email notification. If no objection is raised within seven (7) days of notification, continued use of the service constitutes acceptance of the updated policy.

7. Contact & Governing Law

• Email: hi@apertis.ai
• Phone: +1 814-731-3793

This policy is governed by the laws of the State of Wyoming, United States.

Any disputes shall first be resolved through good-faith negotiation within 30 days. If unresolved, disputes shall be submitted to the courts of Sheridan County, Wyoming.

8. Statutory Rights

Where local consumer protection laws provide a longer cancellation or refund period (such as the 7-day cooling-off period under Taiwan's Consumer Protection Act or the 14-day withdrawal right under EU law), those statutory rights shall prevail over the timeframes stated in this policy. For subscription plans, any refund issued under statutory cancellation rights will be prorated based on the proportion of monthly quota already consumed during the billing period.