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Privacy Policy — Hungry Shelf

Effective date: 25 August 2026 Last updated: 25 August 2026 Version: 1.2

The short version

Hungry Shelf is a personal recipe organiser. Your recipe library and cookbooks live on your phone (local database). You can use the app without an account ("guest mode").

If you sign in, we merge your on-device recipes with a copy on our servers (via Supabase) so recipes can survive a phone change. That is a merge when you sign in / open a signed-in session — not a live sync of every edit, and cookbooks stay on the device only.

Link import (Instagram, TikTok, Pinterest) works as a guest or signed-in; it sends the URL you shared to our servers and AI providers. Photo scan and hands-free cook mode require a signed-in account. Photo scan sends a resized image to OpenAI vision (we do not store the image). Cook mode streams microphone audio live to OpenAI Realtime over WebRTC (we do not keep that audio).

The free tier may show ads served by Google AdMob. Hungry Shelf Plus is ad-free. We collect email (and name / avatar URL if Google or Apple supplies them) only when you create an account. We do not use a separate analytics or crash-reporting SDK, and we do not send marketing push notifications.

Please read this Policy together with our Terms of Use.

1. Who we are

This Privacy Policy explains how Udaya Shree Donthula, an individual / sole proprietor trading as Hungry Shelf ("Hungry Shelf", "the app", "we", "us", "our"), collects, uses, stores, shares and protects your personal data when you use the Hungry Shelf mobile application and related services.

We are the Data Fiduciary in respect of the personal data described in this Policy, as that term is defined under India's Digital Personal Data Protection Act, 2023 ("DPDP Act").

Data FiduciaryUdaya Shree Donthula (individual / sole proprietor), trading as Hungry Shelf
AddressH.No. 8-8-30, Nehru Nagar, Sircilla – 505301, India
Emailhungryshelfinfo@gmail.com

There is no separate company, Data Protection Officer, or EU/UK representative. Privacy questions, data requests and grievances go to the email above (see also Section 11).

2. How the App is built — please read this

2.1 Guest mode — on your device

You can browse, save and organise recipes without an account. Guest mode means you are signed out. Your recipes, cookbooks and most settings are stored in the app's private database on your device.

Because that data lives on the device:

  • If you uninstall the app, clear its data, reset the phone, or lose the device without signing in and merging, that library can be permanently lost and we cannot restore it.
  • Guest link imports still hit our servers (see §3.4) because extraction runs in the cloud — but we do not create a cloud recipe library for guests.

2.2 Signed-in recipes — merge to our servers

When you sign in (email/password, Google, or Apple), the app runs a guest merge: it can upload your local recipes to our backend and pull down recipes already linked to your account. After that, the working copy you edit day to day is still the on-device library.

Important limits of what we actually ship today:

  • Recipes can be stored on our servers as part of that merge.
  • Cookbooks (collections of recipes) are stored on your device only — the app does not sync cookbooks to the server.
  • Day-to-day creates/edits are written to the local database first; they are not pushed on every save.

2.3 Features that leave the device

FeatureAccount required?What leaves the device
Link importNo (guest allowed)Source URL; fetched captions/transcripts/page text sent to AI for extraction
Photo scanYesResized image (base64) → OpenAI vision; draft text returned
Hands-free cook modeYesLive mic audio + recipe text → OpenAI Realtime via WebRTC
Onboarding quizNo locally; cloud copy if signed inGoals / sources you pick

3. Personal data we collect

We collect only what is listed below for running the app — not for advertising or profiling.

3.1 Account data — only if you create an account

DataRequired?Why we collect it
Email addressYes, for accountIdentify your account, sign you in, recover access, support and deletion
PasswordEmail sign-up onlyAuthentication — handled by Supabase Auth (hashed; we never store plain text)
Display nameIf you or Google / Apple supply itShown in the app (from auth user_metadata)
Profile picture URLIf Google / Apple supply itShown as avatar. We do not upload or host the image file
Account IDAutomaticLinks server-side recipes, onboarding rows and import jobs to you

We do not receive your Google or Apple password. Apple's "Hide My Email" is supported — we only see the relay address Apple gives us.

Our profiles table stores your account id and timestamps — not a separate copy of email/name/avatar columns.

3.2 Content you create

DataWhere it is stored
Recipe fields (title, ingredients, steps, notes, timers, source links, cover URLs, etc.)On device; a copy may exist on our servers after you sign in and merge
Cookbooks and which recipes are in themOn device only

3.3 Onboarding answers

Goals and recipe sources you pick during setup are stored in on-device preferences. If you are signed in, they may also be upserted to our user_onboarding_responses table. Used to tailor the app; not for advertising.

3.4 Import data (link import)

When you import from a link, we create an import job on our servers containing the source URL, status, timing, error codes and an extracted recipe draft. Guests and signed-in users can create jobs (guests use the anonymous API key).

Rate limits (abuse prevention):

  • Guest (no account): about 10 imports per hour per IP address
  • Signed-in: about 60 imports per hour per user

We read the client IP from standard proxy headers for that counter. It is used for rate limiting, not for building a marketing profile.

Device free-tier caps (stored only on the device): limited full video/link extractions, daily caption-only imports, and photo scans — shown in the app.

3.5 Photos (recipe photo scan)

Photo scan requires a signed-in account. The app resizes the image and sends it to our Edge Function, which forwards it to OpenAI vision. We do not write the image to our database or file storage — only the returned recipe draft text (if you save it).

Camera and photo-library access are requested only for this feature. Server-side fair-use limit: about 20 photo scans per hour per user.

3.6 Microphone and voice (hands-free cook mode)

Cook mode requires a signed-in account. The app opens a WebRTC session to OpenAI Realtime (ephemeral credentials minted by our server). Microphone audio is streamed live; recipe title, ingredients and steps are sent as session context.

Hungry Shelf does not record cook-mode audio to files or keep it in our database. When you leave cook mode, the session ends and the mic track is released. Session minting is rate-limited (about 30 per hour per user). A Google STUN server may see connection metadata needed to set up the WebRTC link.

OpenAI processes the live stream under its API terms; we do not control their internal processing beyond using their API.

3.7 Purchases

Hungry Shelf Plus is sold through Google Play / Apple App Store using the store billing APIs (not a third-party billing SDK like RevenueCat). We never see your card. The app stores a local flag that Plus is active (and related trial/prefs) in on-device preferences. An active Plus subscription is also used to stop showing ads.

3.8 Advertising (free tier)

The free version of Hungry Shelf may display third-party advertisements through Google AdMob (and related Google advertising services).

When ads are shown, Google’s advertising SDK may automatically process data such as:

  • Advertising identifiers (for example Android Advertising ID or Apple’s Identifier for Advertisers, where available and permitted)
  • IP address and coarse device / network information
  • Device and app information (model, OS version, app version)
  • Ad performance data (impressions, clicks, and similar events)

That processing is performed by Google under its advertising / AdMob terms and Google’s Privacy Policy. We use it to show ads and to measure that ads are delivered. We do not send your recipe library, cook-mode audio, or scanned photos to AdMob for advertising.

Hungry Shelf Plus removes ads. If you do not want ads, upgrade to Plus or adjust device ad / tracking settings (for example reset or opt out of the advertising ID on Android, or App Tracking Transparency / Limit Ad Tracking on iOS where those controls apply).

We do not operate our own ad auction. Ad content is chosen by Google and its advertiser partners, not by Hungry Shelf.

3.9 Device settings and quotas

Stored only on your device, for example: units, voice hints, keep-screen-on, language, onboarding completion, free-tier usage counters, and the Plus active flag.

3.10 What we do not collect or do

Hungry Shelf does not:

  • Use a separate analytics or crash-reporting SDK for product analytics
  • Send marketing or promotional push notifications
  • Collect contacts, calendar or health data for the core recipe features
  • Sell your personal data for money
  • Train our own models on your content

AI calls go through provider API endpoints. Providers' default API policies typically disallow training on API data; their privacy terms still apply.

4. Why we process your data

  1. Create and secure your account when you sign in.
  2. Provide the on-device library and, after sign-in merge, server-side recipe backup.
  3. Run link import, photo scan and cook mode when you use those features.
  4. Enforce free-tier and abuse rate limits.
  5. Process subscriptions via the app stores.
  6. Show ads on the free tier (via Google AdMob) and measure ad delivery.
  7. Diagnose failed imports and keep the service secure.
  8. Respond to support, grievances and rights requests under the DPDP Act and other law.
  9. Comply with law and lawful requests from authorities.

We will not use personal data for a new purpose without telling you and, where required, asking for fresh consent.

5. Legal basis and your consent

Under the DPDP Act (India): consent for the features you use (Section 6), and where allowed legitimate uses under Section 7 (for example legal obligations).

Where GDPR / UK GDPR applies, we also rely on:

PurposeLegal basis
Provide the app, merge recipes when you sign inPerformance of a contract
Link import / photo scan / cook mode you startContract and/or consent (camera, mic)
Rate limits and abuse preventionLegitimate interests
Diagnose failed importsLegitimate interests
Store subscriptionsPerformance of a contract
Show ads / measure ads (AdMob) on the free tierConsent and/or legitimate interests, and platform consent (e.g. ATT) where required
Comply with lawLegal obligation

We do not make automated decisions with legal or similarly significant effect about you. Ad targeting decisions are made by Google / advertisers, not by Hungry Shelf as a credit or eligibility decision about you.

5.1 Consent is per feature

  • Account — email / Google / Apple sign-in
  • Recipe merge — when you sign in
  • Link import — URL you choose to import
  • Photo scan — camera/photos + image upload (signed-in)
  • Cook mode — microphone + live audio (signed-in)
  • Purchases — via Google Play or the App Store
  • Ads (free tier) — device / tracking permissions where the OS asks; Plus removes ads

Guest mode works without an account. Refusing camera or mic in system settings disables those features. Refusing tracking / resetting the advertising ID may limit personalised ads.

5.2 Withdrawing consent

Revoke permissions in device settings, delete content in the app, subscribe to Plus (stops ads), or delete your account (§9). Withdrawal does not undo lawful processing already done; the related feature stops working.

6. Who we share your data with

We do not sell your personal data for money. On the free tier we use Google AdMob to show ads, which means device and ad-related data may be processed by Google and its advertising partners as described in §3.8.

6.1 Service providers

ProviderWhat it receivesPurpose
SupabaseAuth, account id, merged recipes, onboarding rows, import jobs, rate-limit bucketsBackend, auth, database, Edge Functions
OpenAIImport text / transcripts / page content; scan images; live cook-mode audio + recipe contextExtraction and Realtime voice
SupadataImport URLs (metadata / transcripts / extract stages)Social/video fetch for import
Jina ReaderSome web URLs (e.g. Pinterest article fetch)Page text for import
Instagram / TikTok / Pinterest oEmbedPublic post URLPublic metadata for import
Google Sign-In / Apple Sign in with AppleAuth tokens / profile fields they returnSign-in
Google STUNConnection metadataWebRTC setup for cook mode
Google Play / Apple App StorePurchase transactionBilling
Google AdMob (and related Google advertising services)Advertising ID (where available), IP / device / app info, ad eventsShow and measure ads on the free tier

6.2 Legal disclosures

We may disclose data where required by law or in good faith to comply with a lawful request, enforce our Terms, or protect users or Udaya Shree Donthula.

6.3 Business transfer

If Hungry Shelf is sold or transferred, personal data may move with it. We will notify you before a different privacy policy applies.

7. Where your data is stored

  • On device: recipes (working copy), cookbooks, settings, free-tier counters, Plus flag.
  • Supabase: auth, merged recipes, onboarding responses, import jobs, rate-limit buckets — infrastructure may be outside India (commonly including the United States).
  • OpenAI / Supadata / Jina: processing for the features above, often outside India.
  • Google AdMob: ad serving and measurement may use Google infrastructure in multiple countries.

Under the DPDP Act, cross-border transfers are allowed except to countries restricted by notification. Your access, correction and erasure rights still apply to copies we control. Where GDPR/UK GDPR requires it, providers' Standard Contractual Clauses or equivalent safeguards may apply.

8. How long we keep your data

DataRetention
AccountUntil you delete the account
Merged cloud recipes / onboarding rowsUntil you delete them or the account (cascade on account delete)
On-device library, cookbooks, settingsUntil you clear app data / uninstall, or delete account in-app (clears local recipes/cookbooks)
Import jobs (URL, status, draft)On account delete, profile_id is set to null (detached, not instantly wiped). Guest import jobs are also stored with no profile. A scheduled job deletes rows with profile_id is null older than 90 days (purge_detached_import_jobs)
Rate-limit counters (IP / user)Rolling one-hour windows for enforcement; bucket rows are operational data, not a profile
Scan imagesNot stored by us after the request finishes
Cook-mode audioNot stored by us
Support emailsAs needed to resolve the request, then typically up to 24 months unless law requires longer

Local free-tier / Plus preference flags may remain on the device after account deletion until you clear app data — they are not your cloud account.

9. Your rights

9.1 Under the DPDP Act (India)

Access, correction, erasure, withdraw consent, grievance redressal, nomination (email us to register a nominee), and complaint to the Data Protection Board of India. These cover data we hold on our servers. On-device-only data (including cookbooks) you control by editing the app or clearing app storage.

9.2 Delete your account

In the app: Profile → Settings → Delete account (calls our delete_own_account RPC, then clears local recipes/cookbooks).

Without the app: email hungryshelfinfo@gmail.com from your account email with subject "Delete my account". See delete-account. We respond within 30 days.

Deleting the account does not cancel Hungry Shelf Plus — cancel in Google Play or App Store settings.

9.3 Verifying it is you

We may require email from the address on the account (or Apple relay) before acting.

9.4 California (CCPA/CPRA)

We do not sell personal information for money. Showing ads through Google AdMob may involve sharing device identifiers and related data with Google for advertising in the sense used by the CCPA/CPRA. You may opt out of personalised ads using your device settings (and, where available, platform advertising controls). You may exercise rights to know, delete and correct using the contacts above; we will not discriminate against you for doing so. Hungry Shelf Plus removes in-app ads.

9.5 EEA / UK

Where GDPR/UK GDPR applies, you may also request restriction or object to legitimate-interest processing, and complain to your local authority. Prefer contacting us first at hungryshelfinfo@gmail.com.

10. Security

Reasonable safeguards we use include:

  • HTTPS/TLS to our backend and providers
  • Passwords handled by Supabase Auth (hashed)
  • Row-level security so one account cannot read another's server recipes
  • Server rate limits on import, photo and voice session endpoints
  • Not retaining scan images or cook-mode audio in our systems

No system is perfectly secure. Protect your device with a screen lock.

11. Grievances and how to contact us

Grievance OfficerUdaya Shree Donthula
Emailhungryshelfinfo@gmail.com
AddressH.No. 8-8-30, Nehru Nagar, Sircilla – 505301, India
Response timeAim to acknowledge within 72–120 hours; resolve within the period required by law and no later than 90 days

You may also complain to the Data Protection Board of India.

12. Personal data breaches

If a breach affects your data, we will tell you without undue delay in plain language, and report to authorities required by law (including, where required, the Data Protection Board of India and CERT-In) within applicable timelines.

13. Children

Hungry Shelf is not directed to children. Age rules are in our Terms of Use. We do not knowingly collect children's data. If you believe we have, email hungryshelfinfo@gmail.com and we will delete it. DPDP rules on children's data apply where relevant; we do not knowingly offer the service to children under that Act.

14. Changes to this Policy

Material changes (new data categories or purposes) will update the date above and be notified in the app or by email where practicable; fresh consent where required. The "Last updated" date shows the latest revision.

15. Language and territory

This Policy is published in English. Hungry Shelf is operated from India. The app may be available in other countries via Google Play and the App Store. Non-excludable local rights still apply. Other Eighth Schedule languages: email us and we will provide one where reasonably practicable.

Udaya Shree Donthula, trading as Hungry Shelf H.No. 8-8-30, Nehru Nagar, Sircilla – 505301, India hungryshelfinfo@gmail.com

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