Terms & Conditions
Last updated August 15, 2026
These Terms & Conditions (the “Terms”) govern your access to and use of the Vangu and Learn to Draw mobile app, website, and related services (collectively, the “Service”) operated by Jesse Deng under the names Vangu and Learn to Draw (“we”, “us”, or “our”). By downloading, installing, or using the Service, you agree to these Terms. If you do not agree, do not use the Service.
1. Eligibility
You must be at least 13 years old (or the minimum age required where you live) to use the Service. If you are under the age of legal majority, your parent or legal guardian must review and agree to these Terms and supervise your use. By using the Service, you represent that these requirements are met.
2. License to use the Service
Subject to your compliance with these Terms, we grant you a limited, personal, non-exclusive, non-transferable, revocable license to install and use the Service for your personal, non-commercial use.
3. Your content
You retain ownership of the photos you submit to the Service (“Your Content”). You grant us a limited, worldwide, royalty-free license to host, process, transmit, and transform Your Content solely to operate and provide the Service to you — for example, to generate the nine-step drawing sequence.
You represent and warrant that you own Your Content or have all necessary rights to submit it, and that Your Content does not infringe any third-party right or violate any law.
4. Third-party image processing
The Service sends reference photos to Google Cloud Vertex AI (Gemini) for classification and to fal — Features & Labels, Inc. — for image generation. It sends photos of drawing attempts to Google Cloud Vertex AI for feedback. fal may use an underlying model provider. By using the Service, you acknowledge and agree that:
- Your photos are transmitted to these providers for processing;
- In the normal processing flow, AI copies are retained for no more than seven (7) days. Limited copies may be retained longer when required by law or needed to investigate abuse or security incidents, as further described in our Privacy Policy;
- Providers may be located in jurisdictions different from your own, including the United States.
- You must not submit sensitive or confidential information, or any photo you do not have the legal right and permission to submit. A user under 18 must not submit a photo of another minor.
5. Model outputs — no warranty, no responsibility
The drawing sequences, instructions, ghost layers, and other outputs produced by the Service (“Outputs”) are generated by automated machine-learning models. Outputs may be inaccurate, incomplete, offensive, unexpected, or unsuitable for your intended purpose.
You agree that we are not responsible for the Outputs. We do not endorse, verify, or guarantee any Output. You are solely responsible for your use of, and reliance on, the Outputs. Do not rely on Outputs for medical, legal, financial, safety-critical, or other high-stakes decisions.
6. Acceptable use
You agree not to use the Service to:
- Submit photos depicting minors in a sexualized manner, non-consensual intimate imagery, or other content that is illegal in your jurisdiction or ours;
- Submit photos you do not have the right to submit, or that infringe intellectual property, privacy, or publicity rights;
- Attempt to reverse-engineer, decompile, or extract underlying models or training data;
- Interfere with the Service, probe it for vulnerabilities, or bypass rate limits and access controls;
- Use the Service to harass, defame, or violate the rights of others.
We may suspend or terminate access to the Service, and delete associated content, if we believe you have violated these Terms.
7. Fees and subscriptions
The Service offers free features and optional paid features (such as unlimited subjects and PDF export). Paid features are billed through the applicable app store under its terms. Unless otherwise stated, subscriptions auto-renew and may be cancelled at any time through your app-store account. Fees are non-refundable except where required by law.
8. Intellectual property
The Service, including its software, design, branding, and content (other than Your Content and Outputs), is owned by us or our licensors and is protected by intellectual-property laws. We reserve all rights not expressly granted to you.
9. Disclaimer of warranties
The Service and Outputs are provided “as is” and “as available” without warranties of any kind, whether express, implied, or statutory, including warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, reliability, or continuous availability. Some jurisdictions do not allow exclusion of implied warranties; in those jurisdictions our warranties are limited to the minimum extent required by law.
10. Limitation of liability
To the maximum extent permitted by law, we and our affiliates, officers, employees, and providers will not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or any loss of profits, data, goodwill, or other intangible losses, arising out of or related to your use of the Service or any Outputs.
Our total cumulative liability for any claim arising out of or related to the Service will not exceed the greater of (a) the amount you paid us for the Service in the twelve (12) months preceding the event giving rise to the claim, or (b) USD $50.
11. Indemnity
You will defend, indemnify, and hold harmless us and our affiliates from any claims, damages, liabilities, and expenses (including reasonable attorneys’ fees) arising out of or related to Your Content, your use of the Service, or your breach of these Terms.
12. Termination
You may stop using the Service and delete the app at any time. We may suspend or terminate your access to the Service at any time for any reason, including violation of these Terms. Sections that by their nature should survive termination (including sections 3, 5, 8–11, and 13) will survive.
13. Governing law and disputes
These Terms are governed by the laws of England and Wales. The courts of England and Wales have non-exclusive jurisdiction over disputes. If you are a consumer, you may also have the right to bring a claim in the courts where you live. Nothing in these Terms limits mandatory consumer rights or remedies that cannot lawfully be excluded.
14. Changes
We may modify these Terms from time to time. Material changes will be posted with an updated date. Continued use of the Service after changes take effect constitutes acceptance.
15. Contact
Questions about these Terms: legal@howtodraw.app. Postal address: Jesse Deng, 13 The Hoe, Watford WD19 5AY, United Kingdom.