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Terms of use

The plain part first: use Ninety Sky for the umbrella, not for safety.

Effective September 22, 2026
Agreement

Using Ninety Sky

These terms are an agreement between you and Ali Yazdi ("we", "us"), who makes Ninety Sky. By using the app, its widgets, the website or our servers (together, "the service"), you agree to them. If you don't agree, please don't use the service.

Early access

Free while we're getting started

Ninety Sky is in early access. Everything is free for now, and features may change, improve or go away as we learn. Some features, such as longer-range forecasts or rain alerts, may later be offered as a paid subscription. You'll never be charged unless you choose to buy something through Apple, and we'll tell you clearly what's free and what isn't before anything changes.

Weather is uncertain

Not for safety decisions

Forecasts are estimates. Ninety Sky shows its own uncertainty on purpose, and it can still be wrong, late, or unavailable. Alerts can arrive late or not at all. Don't rely on the service for decisions about safety, travel in severe weather, or anything where a mistake could hurt someone or cause loss.

For warnings and emergencies, follow the National Weather Service (weather.gov) and your local authorities.

Your use

What's allowed

We give you a personal, non-exclusive, non-transferable, revocable license to use the service for your own non-commercial purposes. Please don't:

  • scrape, bulk-download, resell or redistribute forecasts or data from the service;
  • use our servers or API from your own app, website or product without written permission;
  • get around rate limits or security, or try to disrupt the service;
  • copy, modify or reverse-engineer the app, except where the law allows it;
  • use the service in a way that breaks the law.
Feedback

When you tell us things

If you send us ideas or feedback, you let us use them to improve Ninety Sky, without owing you anything. We'll never publish your name or email without asking.

Ownership

Whose is what

The app, the website, the design and the forecasts they produce belong to us, apart from third-party data and software, which belong to their owners and are credited on the credits page. Weather data from NOAA and the National Weather Service is public domain. Map data is © OpenStreetMap contributors and © Apple and its data providers.

Changes

The service and these terms

We may change, pause or stop any part of the service at any time. We may update these terms; the date above shows when they last changed, and if you keep using the service after a change, the new terms apply. We may suspend access for anyone who breaks these terms.

Fine print

Warranties and liability

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING ACCURACY, AVAILABILITY, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.

TO THE FULLEST EXTENT THE LAW ALLOWS, WE WON'T BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR ANY LOSS ARISING FROM WEATHER, FORECASTS, ALERTS OR THEIR ABSENCE. OUR TOTAL LIABILITY FOR ANY CLAIM IS LIMITED TO THE GREATER OF WHAT YOU PAID US IN THE PAST 12 MONTHS OR US$50. Some places don't allow these limits, so they may not all apply to you.

You agree to indemnify us against claims arising from your misuse of the service or your breaking these terms.

These terms are governed by the laws of the State of North Carolina, without regard to conflict-of-law rules. Any dispute will be brought in the state or federal courts in Mecklenburg County, North Carolina, and you and we consent to their jurisdiction. If any part of these terms can't be enforced, the rest still applies.

Apple

If you got Ninety Sky from the App Store

  • These terms are between you and us, not Apple. We, not Apple, are responsible for the app and its content.
  • Apple has no obligation to provide maintenance or support for the app.
  • If the app fails to meet an applicable warranty, you may notify Apple and Apple will refund any purchase price you paid for it; beyond that, Apple has no warranty obligation.
  • We, not Apple, are responsible for handling any claims about the app, including product liability, legal or regulatory compliance, consumer protection and intellectual property claims.
  • You confirm you're not in a country subject to a U.S. government embargo or on a U.S. list of prohibited or restricted parties.
  • You must also follow any applicable third-party terms, such as your wireless carrier's.
  • Apple and its subsidiaries are third-party beneficiaries of these terms and may enforce them against you.

Where these terms and Apple's Licensed Application End User License Agreement differ, these terms apply to the extent allowed.

Contact

Questions

Write to hello@ninetysky.com.

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