Last Updated: September 11, 2026
Next4AI Technology Limited ("Next4AI," "Company," "we," "us," or "our") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use the SelfFirst mobile application ("Service," "App," or "Application").
We use Your Personal Data to provide and improve the Service. By using the Service, you agree to the collection and use of information in accordance with this Privacy Policy. Opening the App and continuing past the nickname screen creates an anonymous account.
SelfFirst is not SnapLedger. This policy applies only to SelfFirst (bundle ID com.next4.ai.selffirst). We do not copy SnapLedger’s ledger, camera, photo library, or Google / Apple Sign-In data practices into this App.
Words with an initial capital letter have the meanings defined below, whether used in the singular or the plural.
For the purposes of this Privacy Policy:
While using our Service, we may ask You to provide certain information. SelfFirst has no email, password, SMS, Apple Sign-In, or Google Sign-In. Personally identifiable information may include:
Usage Data is collected automatically when using the Service, including:
Screen Time / Family Controls: required so You can block apps You choose on this iPhone (individual authorization, not managing someone else’s device). Apple gives us opaque tokens, not bundle IDs or a list of every app on Your phone. Tokens, Your block list, intercept events, and the scorecard stay on this Device. We do not collect Apple Screen Time reports and cannot read official minutes. The scorecard is an estimate from events You generate in SelfFirst plus hours You type yourself.
Notifications: required. Local notifications on this Device remind You to open SelfFirst from the shield and apply; that path is not Apple Push. Remote push (APNs) is used for service messages we send (for example product updates). Granting notification permission lets us register an APNs device token. Turning notifications off in iOS Settings stops remote alerts; deleting Your Account deactivates the token on our server.
We do not collect email, phone number, precise GPS, contacts, camera, photo library, payment card numbers, IDFA, or other advertising IDs. We do not show App Tracking Transparency because we do not track You across other companies’ apps or websites for advertising.
By creating an Account or using our App, You expressly agree to:
Except as provided in this Privacy Policy, we will not transfer Your Personal Data to third parties without Your explicit consent.
The Company may use Personal Data for the following purposes:
We do not sell, trade, or rent Your Personal Data. We may share information in the following situations:
Important: We do not share Family Controls tokens or Your block-list app names with anyone. We implement data-processing terms with service providers so data is used only for specified purposes.
The security of Your Personal Data is important to us, but no method of transmission over the Internet or electronic storage is 100% secure. While we strive to use commercially acceptable means to protect Your Personal Data, we cannot guarantee absolute security.
We implement appropriate technical and organizational measures including:
The Company will retain Your Personal Data only for as long as is necessary for the purposes in this Privacy Policy, to comply with legal obligations, resolve disputes, and enforce our policies.
Depending on Your location, You may have the following rights:
How to Exercise Your Rights: Use in-app Settings → Delete Account, or email privacy@next4.ai with “Privacy Request” in the subject. We will respond within 30 days. Deletion removes the server row, deactivates push tokens, Keychain credentials, nickname, and on-device scorecard, and lifts shields we applied. It does not cancel an App Store subscription; manage that in iOS Settings → Apple ID → Subscriptions.
If You are a resident of the European Economic Area (EEA) or the United Kingdom, You have data protection rights under GDPR / UK GDPR. The Company is the controller of anonymous Account data. We aim to allow You to access, correct, delete, or limit the use of Your Personal Data.
If You wish to know what Personal Data we hold about You, or want it removed, contact privacy@next4.ai. We may ask You to verify Your identity (for example by confirming the nickname and that the request comes from the same Device / Account) before responding. We will try to respond within one month.
You have the right to complain to a Data Protection Authority about our collection and use of Your Personal Data.
If You are a California resident, You have the right to notice, to know / access, to delete, to opt out of sale, and not to be discriminated against for exercising these rights.
We do not sell Personal Data as defined under CCPA. We do not share Personal Data for cross-context behavioral advertising. To exercise CCPA rights, email privacy@next4.ai. We will respond to a verifiable request within 45 days (extendable once by 45 days with notice).
Our Service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under 13. Screen Time blocking is for the person who authorized Family Controls on this iPhone (individual use), not for remotely managing a child’s device as a parent-control product.
If You are a parent or guardian and You are aware that Your child has provided Us with Personal Data, please contact Us. If We become aware that We have collected Personal Data from anyone under 13 without verification of parental consent, We take steps to remove that information from Our servers.
com.next4.ai.selffirst.monthly and com.next4.ai.selffirst.yearlyPrivacy Policy: https://www.next4.ai/SelfFirstPolicyPrivacy.html
Terms of Use: https://www.next4.ai/SelfFirstTermsofService.html
Your information, including Personal Data, may be transferred to — and maintained on — computers located outside of Your state, province, country or other governmental jurisdiction where data protection laws may differ.
The Company is Next4AI Technology Limited. Account, subscription, and push-token data may be processed on our backend (including Singapore). Analytics events are processed in the United States by PostHog Cloud. If You are located outside Hong Kong and choose to provide information to us, You acknowledge that we may also operate from Hong Kong and other locations where we or our processors operate.
Your consent to this Privacy Policy followed by Your use of the Service represents Your agreement to that transfer. The Company will take steps reasonably necessary to ensure that Your data is treated securely and in accordance with this Privacy Policy.
Our Service may contain links to other websites or services that are not operated by Us (for example research articles You open in the App). If You click a third-party link, You will be directed to that third party’s site. We strongly advise You to review the Privacy Policy of every site You visit. We have no control over and assume no responsibility for the content, privacy policies, or practices of any third-party sites or services.
Third-Party Services We Use:
https://us.i.posthog.com). We do not enable session replay or advertising tracking. PostHog privacy: https://posthog.com/privacyApp Store privacy labels (not Tracking): Product Interaction and User ID for Analytics / App Functionality; Name (nickname) and Purchase History for App Functionality; Device ID (APNs token) for App Functionality.
We may update our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page and updating the “Last Updated” date. For material changes we will provide a prominent notice in the App or on this page prior to the change becoming effective.
You are advised to review this Privacy Policy periodically. Changes are effective when they are posted on this page. Continued use means You accept the updated policy.
Next4AI Technology Limited
Data Protection Officer: privacy@next4.ai
General Inquiries: support@next4.ai
Website: https://www.next4.ai/
Data Subject Requests: For access, deletion, or correction, email privacy@next4.ai with “Privacy Request” in the subject. We will respond within 30 days.
For California Residents: additional rights under CCPA are in Section 9.
For EU/EEA/UK Residents: additional rights under GDPR are in Section 8.
最近更新日期:2026 年 9 月 11 日
Next4AI Technology Limited(「Next4AI」「本公司」「我们」)重视你的隐私。本政策说明你在使用 SelfFirst 移动应用(「本应用」「服务」)时,我们如何收集、使用、披露和保护信息。
我们使用你的个人数据以提供和改进服务。使用本服务即表示你同意按本政策收集和使用信息。打开应用并在昵称页点继续,即会创建匿名账号。
SelfFirst 不是 SnapLedger。 本政策只适用于 SelfFirst(bundle ID com.next4.ai.selffirst)。本应用不采用记账、相机、相册或 Google / Apple 登录那套数据做法。
首字母大写的词语具有下列含义,单复数同义。
为本政策之目的:
使用本服务时,我们可能收集以下信息。SelfFirst 没有邮箱、密码、短信、Apple 登录或 Google 登录:
使用服务时会自动收集,包括:
屏幕使用时间 / Family Controls:让你在这台 iPhone 上拦截自己选的 App(个人授权,不是管理别人的设备)。苹果给我们的是不透明 token,不是你手机上全部 App 的名单或 bundle ID。token、拦截名单、拦截事件和成绩单留在本机。我们不会采集苹果 Screen Time 原始报告,也读不到官方分钟数。成绩单是估算。
通知:必需。本地通知用于拦截页提醒你打开 SelfFirst 来申请,这条路径不是苹果远程推送。远程推送(APNs)用于我们发送的服务消息(例如产品更新)。你同意通知后,我们会登记 APNs 设备 token。在系统设置里关闭通知即停止远程提醒;删除账号会在服务器失效该 token。
我们不收集邮箱、手机号、精确 GPS、通讯录、相机、相册、银行卡号、IDFA 或其他广告标识。我们不弹 App Tracking Transparency,因为我们不为广告而在其他公司的应用或网站上追踪你。
创建账号或使用本应用,即表示你明确同意:
除本政策另有规定外,未经你明确同意,我们不会向第三方转移你的个人数据。
我们不出售、交易或出租你的个人数据。可能在下列情形共享:
重要:我们不会把 Family Controls token 或拦截名单中的 App 名称提供给任何人。我们与服务提供商约定仅用于指定目的。
我们重视个人数据安全,但任何互联网传输或电子存储都无法保证百分之百安全。我们尽力采取商业上合理的措施,但不能保证绝对安全。
我们仅在实现本政策所述目的、履行法律义务、解决争议和执行政策所需期限内保存个人数据。
视所在地,你可能享有:查阅、更正、删除、限制处理、数据可携带、反对、撤回同意、向监管机构投诉。
如何行使:应用内「设置 → 删除账号」,或发邮件到 privacy@next4.ai,主题注明 Privacy Request。我们将在 30 日内回复。删除会移除服务器记录、失效推送 token、钥匙串、昵称和本机成绩单,并解除我们加上的拦截。不会取消 App Store 订阅;请到「设置 → Apple ID → 订阅」管理。
若你在欧洲经济区或英国,你享有 GDPR / UK GDPR 下的数据保护权利。本公司是匿名账号数据的控制者。请发邮件到 privacy@next4.ai。我们可能要求核实身份。我们将尽量在一个月内回复。你有权向当地数据保护机构投诉。
若你是加州居民,你享有知情、查阅、删除、拒绝出售、不受歧视等权利。我们不出售 CCPA 定义下的个人信息,也不为跨情境行为广告共享个人数据。行使权利请发邮件到 privacy@next4.ai。可核实请求将在 45 日内回复(必要时可再延长 45 日并事先通知)。
本服务不面向 13 岁以下儿童。我们不会故意收集 13 岁以下儿童的个人身份信息。屏幕使用时间拦截仅用于在这台 iPhone 上完成 Family Controls 授权的本人,不是远程管理孩子设备的家长控制产品。
若你是父母或监护人,发现孩子向我们提供了个人数据,请联系我们。若我们知悉在未经可验证的父母同意下收集了 13 岁以下儿童的个人数据,将采取措施从服务器删除。
com.next4.ai.selffirst.monthly、com.next4.ai.selffirst.yearly隐私政策:https://www.next4.ai/SelfFirstPolicyPrivacy.html
使用条款:https://www.next4.ai/SelfFirstTermsofService.html
你的信息(包括个人数据)可能被传输并保存在你所在州、省、国家或其他司法辖区以外的计算机上,当地数据保护法律可能不同。
本公司为 Next4AI Technology Limited。账号、订阅与推送 token 可能在我们的后端(包括新加坡)处理。分析事件由 PostHog Cloud 在美国处理。若你在香港以外使用本服务,即表示知悉我们也可能在香港及处理者运营的其他地点处理数据。
你同意本政策并使用服务,即同意该等传输。本公司将采取合理必要措施,确保数据按照本政策得到安全处理。
本服务可能包含非我们运营的网站或服务链接(例如应用内打开的研究文章)。点击后将前往第三方网站,请自行阅读其隐私政策。我们无法控制第三方内容或做法,亦不承担责任。
我们使用的第三方服务:
https://us.i.posthog.com)。不开启屏幕回放或广告追踪。PostHog 隐私:https://posthog.com/privacyApp Store 隐私标签(不是 Tracking):产品交互、用户 ID → 分析 / 应用功能;姓名(昵称)、购买历史 → 应用功能;设备 ID(APNs token)→ 应用功能。
我们可能不时更新本政策,并在本页发布新版本、修改「最近更新日期」。重大变更将在生效前于应用内或本页显著提示。请定期查阅。变更自发布于本页时生效。继续使用视为接受更新后的政策。
Next4AI Technology Limited
数据保护联系人:privacy@next4.ai
一般问询:support@next4.ai
网站:https://www.next4.ai/
数据主体请求:查阅、删除或更正请发邮件到 privacy@next4.ai,主题注明 Privacy Request。我们将在 30 日内回复。
加州居民:额外权利见第 9 节。
欧盟 / 欧洲经济区 / 英国居民:额外权利见第 8 节。