Last update: February 16, 2026
Sprongsy is a product of van der Smissen - IT services, based in the Netherlands. During this beta/testing phase, we make our service available to a limited group of users to test functionality, payments, and user experience.
Chamber of Commerce (KvK) number: 75008521 — Contact info@sprongsy.com for questions about our company details.
Contact: info@sprongsy.com
Sprongsy is a platform for generating child-safe stories for children aged 4-10 years. Although the stories are intended for children, the account and service are intended for adults (parents/guardians) who share the stories with their children.
Children may only use the service under the supervision of a parent or guardian. We do not collect personal data from children.
Parental responsibility: If a minor creates an account by providing incorrect age information, full responsibility lies with the parent(s) or legal guardian(s). Parents are responsible for supervising their children's internet use. Sprongsy is not liable for use by minors.
We only process data necessary to provide our service:
Our service uses AI for stories and read-aloud audio: OpenAI (GPT) for generating story text, and Google Gemini for text-to-speech (audio). Both process only story-related content, not personal data.
Input: The story settings you choose (theme, characters, story elements) are sent to OpenAI to generate story text. The generated text is sent to Google Gemini (text-to-speech) for the read-aloud feature. We do not store prompts or content with these providers; they may have their own retention policies.
Privacy: We do not send personally identifiable information (such as your email or name) to OpenAI. Only story-related input.
Safety: All generated stories are checked for child safety before being saved.
Disclaimer: AI output may contain inaccuracies. The stories are intended for entertainment, not as educational or professional advice.
Please note: OpenAI is based in the United States. By using our service, you agree to the processing of story-related data outside the EU.
EU AI Act – transparency In accordance with the EU AI Act, we inform you that the stories and read-aloud audio on this service are generated by AI (OpenAI for text, Google Gemini for audio). The content may contain inaccuracies and is for entertainment only.
We use your data to:
We process your personal data based on the following legal grounds:
Payments are processed by Stripe, Inc., our payment provider. Stripe is responsible for processing your payment details (including card details).
See Stripe's privacy policy for more information.
We use the following services to provide our service: Supabase (database, authentication, storage), Stripe (payments), OpenAI (story text), Resend (email), Inngest (background jobs).
| Service | Purpose | Location |
|---|---|---|
| Supabase | Database, authentication, file storage | EU (AWS Frankfurt) |
| OpenAI | AI story generation (text) | US |
| Stripe | Payment processing | US |
| Resend | Email delivery | US |
| Vercel | Web hosting | Worldwide (CDN) |
| Google (Gemini) | Text-to-speech (read-aloud audio) | US |
| Inngest | Background processing (story generation, audio generation) | US |
For payments and age verification, Stripe may temporarily process your birth year in checkout session metadata; we do not store this in our database. See Stripe's privacy policy for their processing.
Sprongsy focuses on the Netherlands and the United Kingdom. To provide our services, your data may be transferred to and processed in countries outside the European Economic Area (EEA).
By using Sprongsy, you consent to these international data transfers that are necessary to provide our service.
To ensure certain actions are only performed by adults, we use a parental verification system:
We only use strictly necessary cookies for:
We do not use external analytics tools such as Google Analytics, Facebook Pixel, or other tracking services. We only collect data strictly necessary for the operation of our service.
Our app uses a service worker for improved performance and offline functionality. It runs locally on your device and uses local cache for stories you explicitly download for offline use. The service worker does not send personal data to external servers.
Only stories you explicitly download on this device are available offline. Offline availability still depends on browser and device limitations (such as storage limits or automatic cache cleanup), which may cause locally stored audio to be removed in some cases.
Please note: When you make a plan change (downgrade), you have 24 hours to cancel it. After this period, the change is final. We store the timestamp of the change to enforce this cancellation period.
As a data subject, you have the following rights:
Access
You can request what data we have about you
Correction
You can have incorrect data corrected
Deletion
You can have your account and all data deleted
Portability
You can export all your data via your account page
Restriction
You can have processing temporarily stopped
Objection
You can object to certain processing
Contact us at info@sprongsy.com to exercise your rights.
Via your account page you can:
When you delete your account, we permanently erase all data we hold: your profile, generated stories, audio recordings, and other account data. This aligns with your right to erasure (GDPR Art. 17).
If you have an active paid subscription, we schedule the permanent deletion at the end of your paid period. You keep access until then and no further payments will be charged. You can cancel your deletion request before that date via your account page.
Backups may temporarily contain copies until overwritten. Where the law requires retention (e.g. for invoicing), we may retain certain data; this is set out in our retention policy or we can explain on request.
We respond within 30 days to requests regarding your privacy rights. For complex requests, this period may be extended by a maximum of 60 days, about which you will be informed in time.
In the unlikely event of a data breach, we take the following measures:
We use AI (OpenAI) to generate stories. However, this does not constitute automated decision-making within the meaning of Article 22 GDPR:
Profiling: We do not use profiling for marketing or advertising purposes. We do not analyze your behavior to show personalized advertisements.
Sprongsy focuses on the Netherlands and the United Kingdom. UK residents have additional rights under UK GDPR:
For UK residents, similar rights apply as under EU GDPR:
We take appropriate technical and organizational measures to protect your data:
Do you have a complaint about the processing of your personal data? Please first contact us at info@sprongsy.com. You also have the right to file a complaint with the Dutch Data Protection Authority.
In accordance with GDPR, we only work with service providers that maintain appropriate security measures and have Data Processing Agreements (DPAs) in place.
All DPAs include Standard Contractual Clauses (SCCs) for international data transfers as required by GDPR.