Brand & Attribution

Building with Saturday is welcome, and we want athletes to know when Saturday’s nutrition intelligence is behind what they see. Attribution is how that works. It credits the engine doing the fueling math, keeps the athlete’s picture honest about where the numbers come from, and gives every partner surface a path back to Saturday for athletes who want full precision. This page is the single source for what to display, where, and how. The one-line requirement also lives in the API terms; the pixels live here so they can improve without reopening an agreement.

When attribution is required

Saturday’s freemium model sets the line. See Freemium Model for how teaser and full responses differ.

Your situation	Attribution
Teaser data (free ranges) shown to any user	Required. The “Powered by Saturday” mark, linking out, near the data.
Full data (subscribed athlete, exact numbers)	Required, lighter. A compact “Powered by Saturday” mark wherever Saturday data appears. Placement is yours; presence is not optional.
Personal, single-account use (your own data, no third-party users)	The marks are welcome and appreciated. No pre-launch review.

Safety metadata is never gated and never stripped. Whatever tier you show, the safety fields ship with it. Attribution rules govern the brand mark, not the safety data.

What to display

Refer to Saturday one of two ways, and no other:

“Powered by Saturday” wherever Saturday nutrition data appears.
“Compatible with Saturday” when you describe interoperability in prose without rendering data.

Two rules on the words:

Link the mark to https://saturday.fit (or to the subscribe_url from a teaser response, so the athlete lands on their own upgrade path). A linked mark is how a curious athlete finds full precision. That link is the whole deal: you get free nutrition intelligence, Saturday gets a way to reach the athlete.
Plain text is a valid fallback. Where a logo will not fit, appropriately sized text reading “Powered by Saturday” satisfies the requirement. You never have an excuse not to attribute.

Do not put “Saturday” in your product’s name, and do not imply Saturday developed, sponsored, or endorsed your app. Truthful, factual references to Saturday in your feature descriptions are fine.

Where it goes

Attribution sits with the data it credits, visible without interaction.

Place it directly beside or beneath the nutrition figures, above the fold, visually tied to the numbers it supports.
Never bury it in a tooltip, footnote, settings screen, “info” modal, or a collapsed or expandable panel. If the athlete can see Saturday’s numbers, they can see the mark without tapping anything.
For a list or feed of many entries, you may attribute once in a section header or footer, or once per entry. Either is fine as long as the mark travels with the data.

Scope it by surface:

Surface	What to show
Summary card / feed / overview	”Powered by Saturday” beside the fuel, hydration, or sodium figures.
Detail view / report / history	The same mark, once in the header or per entry.
Exports and downstream transfer (CSV, PDF, another API, a webhook you forward)	Keep the attribution adjacent to the data and repeated per page. If you pass Saturday data to another system, carry the requirement forward in your own terms.
Derived or blended output (Saturday data fed into your analytics, a model, or merged with other sources)	Name Saturday as a contributing data source. Do not imply Saturday endorses the combined result.
Shared images / social (a card or infographic a user exports)	The mark stays visible in the image.

When your integration also relays a third party’s data alongside Saturday’s (for example a wearable’s device data), honor that source’s attribution too. Name the origin, not only the vendor.

How it should look

Saturday provides the “Powered by Saturday” mark in light and dark variants, stacked and horizontal, as a drop-in asset. Stacked is the primary form; use horizontal where vertical space is limited. Use the asset as shipped.

Minimum size: stacked, 32px tall on screen (40px or larger recommended), 12mm in print; horizontal, 16px tall on screen (20px or larger recommended), 6mm in print. Below that, use the plain-text form.
Clear space: keep open space around the mark equal to at least half the mark’s own height on every side. This scales with the mark, so there is one rule at every size.
Contrast: use the light mark on dark backgrounds and the dark mark on light. Keep it legible.
Do not recolor, restretch, rotate, animate, add effects to, or rebuild the mark, and do not use it, or any part of it, as your app icon or avatar.
Keep your brand dominant. The Saturday mark appears near your own name but stays separate from it and never larger or more prominent than your own branding. Present, not loud.

Do not rename or rebrand Saturday’s fueling terms and metrics. Call them what Saturday calls them so athletes carry one vocabulary across every app they use.

Data license

Attribution rides alongside the data-use terms every response already carries in its headers (X-Saturday-Data-License, X-Saturday-Data-Training, X-Saturday-Data-Attribution). Saturday’s prescriptions, product database, and knowledge base are proprietary: no training or fine-tuning of models on response data, no reverse-engineering the calculations, no reselling or building a derived database. Full terms: Data Policy.

If your use is commercial

Putting Saturday in front of other people commercially (a platform, an app in a store, a coaching business charging clients, anything that resells or bundles Saturday output) gets a quick brand review before launch. Send mockups or screenshots of the surfaces that show Saturday data to api@saturday.fit and we confirm the attribution reads well. It is a short step, not a gate on every build, and it is only for new display surfaces. Personal, single-account use skips this. Build freely.

Example

<div class="nutrition">
  <p>Carbohydrates: 60-80 g/hr</p>
  <p>Hydration: 600-900 mL/hr</p>
  <p>Sodium: 300-600 mg/hr</p>

  <a href="https://saturday.fit/subscribe?ref=your_partner_id" class="saturday-attribution">
    <img src="https://saturday.fit/brand/powered-by-saturday/powered-by-saturday-stacked-dark.svg"
         alt="Powered by Saturday" height="40">
  </a>
</div>

Column(
  crossAxisAlignment: CrossAxisAlignment.start,
  children: [
    Text('Carbohydrates: 60-80 g/hr'),
    Text('Hydration: 600-900 mL/hr'),
    Text('Sodium: 300-600 mg/hr'),
    GestureDetector(
      onTap: () => launchUrl(Uri.parse(subscribeUrl)),
      child: SvgPicture.asset('assets/powered-by-saturday-stacked.svg', height: 40),
    ),
  ],
)

Brand assets

Saturday brand kit

The “Powered by Saturday” and “Compatible with Saturday” marks (light and dark, stacked and horizontal, SVG and PNG) plus ready-to-paste HTML and Flutter snippets. Download the kit at saturday.fit/brand, or email api@saturday.fit and we will send it.

Reviews and changes

Saturday may review an integration for attribution compliance and ask for changes. Reach api@saturday.fit any time and we will help you get it right. Unresolved noncompliance may lead to suspension or termination of API access. Saturday may update these guidelines; the current version here governs.

Getting Started

Core Guides

Integration Guides

Coach API

Platform

Brand & Attribution

Brand & Attribution

When attribution is required

What to display

Where it goes

How it should look

Data license

If your use is commercial

Example

Brand assets

Saturday brand kit

Reviews and changes

​Brand & Attribution

​When attribution is required

​What to display

​Where it goes

​How it should look

​Data license

​If your use is commercial

​Example

​Brand assets

Saturday brand kit

​Reviews and changes

Brand & Attribution

When attribution is required

What to display

Where it goes

How it should look

Data license

If your use is commercial

Example

Brand assets

Reviews and changes