Privacy Policy | Ryft Calc — How We Protect Your Data

1) Information We Process

1.0 Definitions

Personal information is information that identifies or can reasonably be linked to a person or device. Content you enter may contain personal information.

1.1 Content you enter in the App

Calculations, results, history comments, formula templates, session names and colors, notes and other tool inputs are processed on your device. This content is not sent to Ryft for purchase verification. A Ryft account is not required for Free or Pro.

1.2 Local settings and state

The App stores preferences, accessibility settings, keypad layout, calculator and memory state, plugin selections and saved inputs, and tutorial progress locally. Operating-system backup or device-transfer settings may also affect this local data.

1.3 One-time Pro purchases on Android

Pro is a one-time purchase, not a subscription. Google Play processes payment using your store account. Ryft does not receive your full payment-card details.

The App receives Google-signed purchase data, its signature and a purchase token from Google Play Billing. It checks the signature locally using the app's public licensing key and confirms that the signed data matches Ryft Calc and the Pro product. It also acknowledges completed purchases through Google Play.

The Android App does not send purchase receipts, signatures, tokens, device identifiers or calculation content to a Ryft purchase-verification server. Google Play processes billing and store requests under Google's Privacy Policy.

1.4 Local purchase proof and restoration

The App stores verified signed purchase data and access status in platform-provided secure storage where supported, so local Pro features work offline. The cached signature is checked again on app startup. No daily online check or Ryft account is required.

On startup, return to the App or an explicit restore request, the App queries purchases through Google Play Billing. It keeps previously verified access when the query fails, internet connectivity is unavailable or the result is inconclusive. A successful owned-purchase query while internet connectivity is available can remove access when Pro is absent, including after a store revocation or a change of store account. Billing can return cached information, so this is not an immediate refund-status check.

Use the same Google Play account to restore after reinstalling or changing devices. Purchases belong to the store where they were made. An iPhone version is planned and is not offered for download here yet.

1.5 Import, export and files you choose

CSV/JSON/text history export and CSV/JSON history import are free. Imports accept files up to 5 MB. These features transfer history, not a full backup of templates, workspaces or settings. The App reads or writes the files you choose; formatted PDF reports are optional Pro features.

Exported files and shared QR/text templates may contain the content you entered. Files saved outside the App may be retained or synchronized by your chosen file provider or operating system, under their settings and policies.

1.6 Sharing through system features

If you choose to share content, the App passes the selected content to the operating system and the destination or recipients you select. Ryft does not operate a cloud history-sync service.

1.7 Advertising and analytics

The App has no advertising or behavioral-tracking SDKs. We do not collect calculation or tool usage analytics. The App does not request precise location or biometric information for calculator features.

1.8 Support communications

If you contact us, we process the email address, message, attachments and purchase details you choose to send to provide support. Please do not send payment-card details or purchase tokens in ordinary support messages.

1.9 Website visits and external resources

When you visit the Ryft Calc website, the web host receives request metadata such as your IP address, browser information and requested URL to deliver and secure the pages. The pages load Inter fonts from Google Fonts, which sends your browser's request metadata to Google. See Google's Privacy Policy.

The Calc pages do not use advertising cookies or analytics scripts. Following a store or other external link sends you to a service with its own privacy policy. Website requests and store purchase checks are separate from local calculations in the App.

2) Legal Basis for Processing

Where GDPR or similar laws apply to information Ryft receives, we process it to provide requested services (contract), respond to support requests and deliver and secure the website (legitimate interests, subject to your rights), or comply with legal obligations. Where an activity requires consent, we obtain it before that activity.

Purchase signatures are checked locally; Google Play processes store billing under its own policies. Consent is not inferred simply from reading this policy. You may object to processing based on legitimate interests and withdraw consent where consent is the basis. Regional rights are described in Section 8.

3) How We Use Information

To perform calculations and keep settings and content locally on your device.
To validate signed purchase data on your Android device and restore access using Google Play Billing.
To import, export or share content only when you request it.
To answer support requests, deliver the website, maintain security and comply with applicable law.

We do not use your calculation content for advertising, profiling or training AI models.

App stores: Google Play processes Android billing under its own policies. Apple billing would apply to a future Apple release, which is not available here yet. See Google Privacy Policy and Apple Privacy Policy.
Android purchase processing: Google Play handles store purchase requests. Signed purchase proof remains in the App; there is no Ryft purchase-verification service in the Android flow.
Website fonts: Google receives requests for Google Fonts when you load these pages.
Support: Email providers process messages you send us to deliver and manage support correspondence.
Your choices: Exported files or shared content go to destinations you choose, including any file or cloud provider you select.

We do not sell or rent personal information or share it for cross-context behavioral advertising.

4.1 Legal and safety reasons

We may disclose information we hold where necessary to comply with applicable law or valid legal process, investigate fraud or security issues, or protect rights and safety.

5) Data Retention

Local content: Data remains on your device until removed through App controls or the operating system, subject to backup and restore behavior. History keeps the newest 1,000 entries; adding more replaces the oldest. Export files are separate copies under your control.
Purchase proof: Verified proof and access status are cached locally in secure storage. How long secure storage survives app removal or device restoration depends on the operating system. A refund does not delete your calculations, templates or history.
Android purchase data: Ryft does not receive or maintain a database of the Android purchase proofs or tokens. They are processed locally and by Google Play as described above.
Stores: Apple and Google retain purchase records according to their own policies and legal obligations.
Support: Correspondence may be retained for up to three years, or longer where necessary to meet a legal obligation or resolve a dispute.
Website and operational metadata: Retention depends on the need to deliver the service, investigate security incidents and meet applicable legal requirements. We do not use this metadata to build advertising profiles.

You can ask about or request deletion of information Ryft controls using the contact details below. We cannot delete copies you exported, data held independently by stores, or local content we do not receive.

6) Security

Google-signed Android purchase data is verified using platform cryptography. Cached purchase proof and access status use platform-provided secure storage where supported. Calculator content and preferences are stored locally using the App's normal storage; this is not a claim that all App data is separately encrypted by Ryft.

Device security, operating-system permissions and backup settings affect local data. No storage or transmission method can guarantee absolute security. Report a security concern through our contact email (click to reveal).

7) Children's Privacy

The App is not directed to children under 13 (or the age defined by local law), and we do not knowingly collect personal information from children.

8) Your Privacy Rights

Depending on your location, you may have certain rights regarding your personal information.

8.1 Controls Available to All Users

View and manage: Use the App's history, templates, workspace and settings controls.
Export: Ordinary CSV/JSON/text history exports and CSV/JSON imports are free. They do not include every kind of App data.
Delete: Remove content through App controls or operating-system storage settings. Backups and exported files may need to be deleted separately.
Purchases: View receipts or request refunds through your store account. Use Restore Purchases in the App to restore Pro. Deleting local data or uninstalling does not refund a purchase.

8.2 Rights for EEA/UK/Swiss Users (GDPR)

If you are located in the European Economic Area (EEA), United Kingdom (UK), or Switzerland, you have the following rights under applicable data protection law (the article references below refer to EU GDPR):

Right to access (Art. 15): Request confirmation of whether we process your personal information and obtain a copy.
Right to rectification (Art. 16): Request correction of inaccurate or incomplete personal information.
Right to erasure / "right to be forgotten" (Art. 17): Request deletion of your personal information in certain circumstances.
Right to restrict processing (Art. 18): Request restriction of processing in certain circumstances.
Right to data portability (Art. 20): Request personal information you provided to us in a structured, commonly used, machine-readable format where the right applies. Local history can be transferred separately with the App's free export features.
Right to object (Art. 21): Object to processing based on legitimate interests or for direct marketing.
Right to withdraw consent (Art. 7(3)): If processing is based on consent, you may withdraw it at any time.
Right to lodge a complaint: You may file a complaint with your local Data Protection Authority (DPA). A list of EU data protection authorities is available at edpb.europa.eu.

8.3 Rights for California Users (CCPA/CPRA)

Where the California Consumer Privacy Act applies to your request, California residents have rights under that Act (CCPA) and California Privacy Rights Act (CPRA), subject to applicable exceptions:

Right to Know: Request disclosure of the categories and specific pieces of personal information we have collected, the categories of sources, the business/commercial purposes for collection, and the categories of third parties with whom we share it.
Right to Delete: Request deletion of personal information we have collected from you, subject to certain exceptions.
Right to Correct: Request correction of inaccurate personal information.
Right to Opt-Out of Sale/Sharing: We do not sell or share personal information as defined by CCPA/CPRA.
Right to Limit Use of Sensitive Personal Information: We do not use or disclose sensitive personal information for purposes that trigger this right.
Right to Non-Discrimination: We will not discriminate against you for exercising your CCPA/CPRA rights.

You may designate an authorized agent to submit requests on your behalf. We may require verification of the agent's authority and your identity.

8.4 How to Exercise Your Rights

To exercise any of the above rights, please contact us at:

Email: Privacy rights email (click to reveal) (subject line: "Privacy Rights Request")
Mail: Ryft LLC, 30 N Gould St Ste R, Sheridan, WY 82801 (Attn: Privacy Rights)

Please include sufficient information to verify your identity and specify your request. We will respond within the timeframes required by applicable law (typically 30-45 days, with possible extensions).

Note: Most App data is stored locally on your device and is not accessible to us. For such data, you can use the App's built-in controls or uninstall the App. We can only process requests for data we control (for example, support emails or limited website operational metadata).

9) Regional Disclosures

9.1 United States (general)

If applicable law grants you privacy rights regarding personal information, you may contact us to request access, deletion, or correction for information we control (if any). Please note that most App content is stored locally on your device and may not be accessible to us.

9.2 California

We do not sell personal information or share it for cross-context behavioral advertising. The information we process can include support identifiers and messages, purchase details you choose to send in support messages, and website request metadata. Sources are you, your device and the relevant store; purposes and recipient categories are described in Sections 1–4. Retention is described in Section 5.

9.3 European Economic Area, UK and Switzerland

See Sections 2 and 8 for applicable legal bases and rights. Google Play billing, website delivery and support may involve processing outside your country, including in the United States, where Ryft LLC is based, and countries where relevant providers operate.

Where a transfer is restricted by applicable law, the required transfer safeguards must apply. Contact us for information about the processing and transfer arrangements relevant to your request. Apple and Google describe their own international processing in their privacy policies.

9.4 International users

Information sent for website delivery, support or Google Play billing may be processed in countries with different data protection laws. This policy does not treat use of the App as consent to a transfer that legally requires separate consent or safeguards.

9.5 Do Not Track

These Calc pages have no advertising or analytics tracking scripts. Browser Do Not Track settings do not change the local calculator or the billing data processed by Google Play for a requested purchase.

10) Data Breach Notification

If a breach affects personal information in our systems, we will investigate and take appropriate containment and remedial measures. We will notify the relevant authorities and affected people where required, within the applicable legal time limits. Information stored only on your device is not received by Ryft for purchase verification.

11) Changes to This Policy

We may update this Privacy Policy from time to time. The effective date above indicates when it was last updated. For material changes, we will provide additional notice where required by applicable law, within the App or on our website.

12) Contact

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, please contact us:

Data Controller:
Ryft LLC
30 N Gould St Ste R
Sheridan, WY 82801, USA
Email: Contact email (click to reveal)

For EEA/UK/Swiss users: If you are not satisfied with our response to your privacy inquiry or complaint, you have the right to lodge a complaint with your local Data Protection Authority (DPA).