These terms apply when you use the Rocket Design Lab app (on iOS, Android, or the web) and rocketdesignlab.com (together, the "Service"). The Service is provided by Rocket Design Lab, a sole proprietorship owned by Ian Dalton, Las Vegas, Nevada, USA ("we," "us"). By creating an account or using the Service, you agree to these terms. If you don't agree, don't use the Service.
1. Your account
You need an account to use most of the Service. Keep your login secure. You're responsible for activity on your account. You must be old enough to agree to these terms where you live, and at least 13 years old. Tell us at support@rocketdesignlab.com if you think your account has been compromised.
2. Rocketry safety: read this
Rocket Design Lab is a planning and record-keeping tool. Its simulations, stability margins, ejection-charge, vent-hole, ballast and other calculations are estimates based on the data you enter and on simplified models. They can be wrong. They are not a substitute for your own judgment, testing, manufacturer instructions, or the safety codes that govern your flights (including the NAR and Tripoli safety codes, your certification level, and FAA and local rules).
You are solely responsible for the design, construction, inspection and safe flight of your rockets and for complying with every law and safety code that applies. Always verify critical numbers independently, ground-test recovery systems, and follow your range safety officer.
3. Pro subscriptions
- What you get. Rocket Design Lab Pro unlocks the features described in the app and on our website. Features may change over time as we improve the Service.
- Price and billing. Pro is billed monthly or yearly at the price shown at checkout, plus any applicable tax. Your subscription renews automatically at the end of each period until you cancel.
- Where you buy determines who bills you.
- iPhone/iPad: billed by Apple through your Apple ID. Manage or cancel in your device's Settings → your name → Subscriptions. Refunds are handled by Apple under its policies.
- Android: billed by Google Play. Manage or cancel in the Play Store → Payments & subscriptions. Refunds are handled by Google under its policies.
- Web (rocketdesignlab.com): processed by Stripe on our behalf, with Stripe acting as the merchant of record. Manage or cancel using the link in your receipt email, or contact support@rocketdesignlab.com. Refunds for web purchases follow Stripe's merchant-of-record policies. Contact us first and we'll help.
- Cancelling. You can cancel at any time. You keep Pro until the end of the period you've already paid for. We don't give partial refunds for unused time, except where the law or the store's policy requires it.
- One account, every platform. Pro is tied to your Rocket Design Lab account, so a subscription bought on one platform unlocks Pro wherever you sign in to that account.
- Price changes. If we change the price, we'll give you advance notice as required by the store or by law. The new price applies from your next renewal, and you can cancel before then.
4. Your content
You own the designs, flight records, photos and other content you put in the Service. You give us permission to store, process and display that content only as needed to run the Service for you, and to use de-identified, aggregated data to improve features such as motor and kit recommendations, as described in our Privacy Policy. You're responsible for having the rights to anything you upload.
5. Acceptable use
Don't misuse the Service. In particular, don't:
- break the law or encourage unsafe or illegal rocketry;
- try to access other people's accounts or data;
- interfere with, overload, scrape or reverse-engineer the Service;
- abuse limits, upload malware, or resell access.
We may suspend or close accounts that break these terms.
6. Third-party data
The Service includes data from third parties, such as motor specifications, kit catalogs, weather and imported design files. We don't guarantee that data is accurate or current. Check critical values against the manufacturer's published data.
7. Changes to the Service and these terms
We may add, change or remove features. We may update these terms. If a change is material, we'll update the effective date and tell you in the app or by email before it takes effect. If you keep using the Service after that, you accept the new terms.
8. Ending your account
You can delete your account at any time from Settings in the app. Deleting your account doesn't cancel a store subscription automatically, so cancel it with Apple, Google, or through your web receipt as described above. We may end or suspend your access if you break these terms or if we discontinue the Service. If we discontinue the Service, we'll give reasonable notice where we can.
9. Disclaimers
The Service is provided "as is" and "as available," without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy and non-infringement. We don't promise the Service will be uninterrupted, error-free, or that its calculations are correct.
10. Limitation of liability
To the fullest extent the law allows, Rocket Design Lab and its owner are not liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of data, property, or injury, arising from your use of the Service or of any rocket, motor or recovery system, including anything designed, built or flown using information from the Service. Our total liability for any claim relating to the Service is limited to the greater of the amount you paid us in the 12 months before the claim or US $50. Some places don't allow these limits, so they may not fully apply to you.
11. Governing law
These terms are governed by the laws of the State of Nevada, USA, without regard to conflict-of-law rules. Disputes will be handled in the state or federal courts located in Clark County, Nevada, except where the consumer-protection laws of your home country give you the right to bring a claim locally.
12. Contact
Questions about these terms: support@rocketdesignlab.com.