中文

Membership Service Agreement

Updated: September 20, 2026

Effective: September 20, 2026

This English text is provided for convenience. If it differs from the Chinese version, the Chinese version prevails.

1. Parties and acceptance

This agreement is between you and Beijing Xiaoyu Changxiang Technology Co., Ltd. (“we” or “us”). It covers paid services in EchoClass, including membership plans, auto-renewing subscriptions and top-up packs, and supplements the Terms of Service. Personal information is handled under the Privacy Policy.

Please read this agreement and the purchase page before you place an order. After you expressly confirm this agreement on the page and complete the purchase authorization, the order takes effect according to the payment confirmation and the activation of benefits. Auto-renewal of a subscription requires your separate express authorization. Reading this agreement does not itself trigger a charge. The price, period and benefits of a particular order are those clearly displayed and confirmed by you at the time of purchase. This does not affect your statutory rights.

A minor may purchase only with the consent of a guardian appropriate to the minor’s capacity for civil conduct, and may not use another person’s identity or payment account. Transactions by a minor that lack valid authorization will be handled as required by law after verification.

2. Membership benefits

Membership benefits include the credit allowance, high-accuracy simultaneous interpretation, AI class summaries, audio and video import, multi-format export and other features listed on the purchase page. EchoClass measures usage in credits: live transcription and file transcription are deducted by actual processing time, and AI summaries, paragraph translation and similar features are deducted per use. The number of credits issued each period, and the length of that period, may differ by plan, so an overview of benefits is not a uniform credit commitment.

AI summaries deduct credits per use. Members and non-members are charged on the same basis. Non-members may have a limited number of free trials, as shown in the app. Deducting credits does not permit resale of accounts, bulk machine calls, or bypassing the system. We will not restrict normal use through undisclosed daily or monthly caps.

Supported languages, formats, size limits and device requirements for member features are shown before you use them. High-accuracy interpretation, transcription and summaries are generated with technical systems and may be affected by audio quality, accent, context or model capability. Buying a membership is not a guarantee of absolute accuracy or zero latency. We still provide the service as agreed and remain responsible for service quality as required by law.

3. Credits and top-up packs

Membership credits are issued by period, not as the full term’s allowance at once: a weekly plan is issued every 7 days, and other plans are issued once each calendar month. The amount issued each period is as shown on the purchase page. Credits for a period are valid only during that period. Unused credits expire automatically at the end of the period and do not carry over. When a subscription expires or ends, unused credits for the current period expire at the same time. The time of the first credit, the issue cycle and any carry-over rules must be clearly shown before purchase. Credit rules that were not clearly stated may not be used to add unfavorable limits after purchase.

Live transcription and file transcription deduct credits by actual processing time and the metering rules disclosed before purchase. AI summaries, paragraph translation and similar features are deducted per use. Audio that is not submitted for processing while paused is not counted as processing time. If a file task needs to reserve or freeze credits, that will be explained before you submit it, and the task is settled by the actual result when it finishes. Credits deducted for a service that was not actually provided, or deducted by mistake or more than once, will be corrected after we verify them. A partly successful task is handled according to what was actually delivered and what was explained in advance.

Top-up packs can be bought only by an active member. They do not by themselves grant membership, and they do not extend the membership term. A top-up pack is a one-time purchase and is not charged again automatically. A top-up pack is credited all at once. Its validity, the order in which credits are deducted, and whether it can still be used after membership ends must be stated separately on the purchase page and confirmed by you. We will not clear top-up benefits that are still within their validity period merely because membership has ended.

If live transcription pauses during normal use because credits run out, we will prompt you to add credits. A new plan or a renewal does not retroactively change benefits already promised in an existing order. Newly added credits do not guarantee recovery of past audio that was never captured or uploaded.

The number of credits issued and the consumption rules (the price of each feature) are set by us and published in the app. We may adjust credit consumption rules when operating costs, service costs, or laws and regulations change. An adjustment will be published in the app in advance, or notified in another prominent way, and applies to consumption after the stated effective time. Consumption that has already occurred, and benefits already promised in an existing effective order, are not affected retroactively.

If the number of credits issued is wrong, we will correct it as required by law. If too few were issued, we will make up the difference promptly. If too many were issued, we may take back the excess (by deducting unused credits, or by offsetting credits you receive later) and will tell you about the correction. If the credits you actually receive do not match the order or the page, contact us at the support email and we will handle it after verification.

4. Orders, payment and delivery of benefits

Before you place an order, please check the signed-in account, plan name, price, billing period, credit rules and payment channel. iOS membership uses an auto-renewing subscription through the Apple App Store. An ordinary membership plan on Android is a one-time payment through WeChat, Alipay or another channel provided in the app. If we later offer another auto-renewing product, we will explain it clearly and obtain authorization separately.

After payment succeeds, we activate the benefits for the EchoClass account linked at the time of purchase, based on a valid payment result. If payment fails, is still processing, or the callback is delayed, check the order first and do not pay again. If payment succeeded but the benefits have not arrived, send the order number and the necessary proof to the support email. After verification we will reissue, correct, or refund as required by law. We will not ask for your payment password or verification code.

If the app provides Restore Purchases, you can follow the instructions and use the original Apple account to verify a subscription that can be restored. Restoring a purchase does not charge you again and does not create a duplicate allowance. A top-up pack that has already been used cannot be obtained again by restoring a purchase. Binding or moving an account requires the necessary identity and order checks.

You can see the membership term and balance in Profile. Receipts, invoices, or help with invoicing can be requested by the support email, according to the actual seller, the payment channel and the applicable rules.

5. iOS auto-renewing subscription

An iOS membership plan is an auto-renewing subscription. After you authorize it on Apple’s subscription confirmation screen, Apple charges your Apple account and renews the subscription on the period you chose, until you cancel. The initial price, later renewal prices and the subscription period must all be clearly shown before purchase. The price after a promotional period ends must be disclosed together with the promotion. A “promotion” is not a substitute for stating the later price.

The renewal date, the time of the charge and whether it actually takes effect follow Apple’s subscription management and the transaction result. Please cancel before the next renewal. Do not wait until after the charge. For a free or promotional trial, if the page states an earlier time to cancel, you should also follow the trial rules shown by Apple. This agreement does not mean the product necessarily offers a trial.

How to cancel: on iPhone or iPad, go to Settings → your Apple Account → Subscriptions → EchoClass → Cancel Subscription. If a system version changes the menu names, see Apple’s guide to canceling a subscription or ask us through the support email. Confirm the result by the expiry status shown by the system.

Uninstalling EchoClass, signing out, stopping use, or deleting your EchoClass account does not cancel Apple auto-renewal. Canceling future renewals generally does not affect benefits in the period you have already paid for, and does not automatically refund amounts already paid. Refunds are handled under section 6.

We will give a prominent reminder before you subscribe and before a renewal, as required by law, and we will provide simple subscription-management guidance while the service is available. Listing the rules in this agreement does not remove that reminder duty. Price changes will be notified under the law and Apple’s rules, and we will obtain consent again when required. You may cancel future renewals.

If a charge fails, renewal, any grace period and the status of benefits follow Apple’s actual result. We do not guarantee that a grace period will exist. When a plan is changed, upgraded or downgraded, the effective time, any price difference and any platform refund follow the rules shown before you confirm the transaction.

6. Refunds and withdrawal of benefits

Membership plans and top-up packs are digital service benefits. Except where the law, the applicable payment-platform rules, or an express promise by us requires a refund, once benefits are activated or credited we do not offer no-reason refunds because you no longer wish to use them, your study plans changed, or you did not use them often, and we do not convert remaining benefits into cash. This does not exclude statutory rights to return goods without reason, to terminate the contract, to receive a refund, or other rights provided by law, where those rights apply.

This section does not affect review and handling of duplicate or mistaken charges, charges without valid authorization, benefits that were not delivered, a service that seriously fails to match what was agreed, our stopping a paid service that has not yet been performed, or minor transactions that must be refunded by law. We will not refuse a refund that the law requires merely because the product is “virtual.”

A refund for an Apple transaction must be requested from Apple. Apple reviews it under platform rules and the law, and we provide necessary help. This agreement cannot exclude a refund that Apple may approve. For other channels, email the support address with the order number, the purchasing account and the reason. You do not need to provide unrelated personal information.

Where a refund is due, we calculate and process it under applicable law, the valid order and what was actually performed, and in principle refund it by the original payment path. The time it arrives depends on the payment channel. After a refund succeeds, we withdraw the corresponding membership or credit benefits to the extent of the refund. We will not arbitrarily affect other valid orders, and we will not charge an unreasonable refund fee that was not disclosed in advance.

7. Account and fair use

Membership and top-up packs are for lawful use by the person who bought them. You may not rent or resell the account, or obtain benefits by bulk registration, fake transactions or abusive refunds. Recording a class, uploading a file, or sharing a transcript requires a lawful right or the necessary permission, and must not infringe another person’s privacy, personal information or intellectual property.

If we find suspected abuse, we may, based on the facts, take necessary and proportionate steps such as verification, rate limits, restricting abnormal requests, or pausing the service, explain the reason, and provide a way to appeal. If a check finds no violation, we will restore access promptly. We will not take away benefits you have already bought for an indefinite period based only on a general sense of risk.

8. Service interruptions and force majeure

We take reasonable measures to keep the service running. Planned maintenance will be announced in advance when possible, and faults will be handled promptly. Ordinary system maintenance, a cloud provider’s outage, or network fluctuation is not automatically force majeure. Responsibility is determined by the cause and each party’s fault.

Events such as earthquakes, typhoons and floods excuse the corresponding breach, in whole or in part and according to their actual effect and causal link, only when they meet the legal conditions of being unforeseeable, unavoidable and insurmountable, and they actually make the contract impossible to perform, unless the law provides otherwise. We will notify you promptly, provide proof within a reasonable time, and take reasonable measures to reduce loss and resume performance. Force majeure that occurs after a delay in performance does not excuse the delay.

Being excused by law does not mean we automatically keep all fees for a service that was not provided. If an interruption makes the purpose of the contract impossible, and the law allows the contract to be terminated and the fee for the unperformed part to be refunded, we will still handle it as the law requires. A temporary interruption may be handled by restoring the service, agreeing a delay, or similar steps, depending on the actual effect. Completed service and unaffected parts are handled separately. Loss that grows because reasonable measures were not taken is borne by the responsible party as required by law.

No limit of liability excuses liability for property loss caused by intent or gross negligence, excludes liability for personal injury, or excludes any other liability that cannot be excluded by law.

9. Changes to benefits, expiry and termination

Changes to prices and plans apply in principle only to later transactions. They do not retroactively reduce benefits already promised in an effective order. For a material change to a service you have already paid for, we will give prominent notice and, as required by law, offer continued performance, a reasonable alternative, negotiated termination, a corresponding refund, or similar handling.

When membership ends and is not renewed, member-only features end with the term. Benefits under other orders that are still valid are handled as those orders provide. Expiry does not by itself delete existing transcripts. How transcripts are kept and accessed follows the Terms of Service, the Privacy Policy, and rules that were clearly stated in advance.

Before you delete your account, please deal with your data and unfinished orders, and cancel auto-renewal separately. The deletion notice will clearly explain remaining benefits and what happens to your data. Deleting the account is not treated as an unconditional waiver of money or rights you can still claim by law.

When an update to this agreement affects important rights, we will give prominent notice as required by law and obtain consent again when needed. We will not retroactively change a service you have already bought because you did not actively read an update.

10. Governing law and disputes

This agreement is governed by the laws of the mainland of the People’s Republic of China.

If a dispute arises from this agreement or a paid service, the parties may first try to settle it. If they cannot, they agree to bring a lawsuit in the People’s Court of Chaoyang District, Beijing, provided that court has the actual connection required by law and the choice does not violate rules on court level, exclusive jurisdiction, or other mandatory provisions. If this choice does not take effect or does not apply because there is no actual connection, because another court has exclusive jurisdiction, or for another reason provided by law, the dispute will be handled by a people’s court that has jurisdiction. Negotiation is not a precondition to suing as the law allows.

If part of this agreement is invalid or does not apply, the rest remains effective. No term excludes or reduces a consumer’s statutory rights.

11. Contact us

Service provider: Beijing Xiaoyu Changxiang Technology Co., Ltd.

Email: xiaoyuchangxiang@163.com

For charges, refunds, order problems, interpretation of these terms, or an appeal, contact us at the email above. We will verify the information needed for the issue and handle it as required by law.