Saturday: Pro Fuel & Hydration1.2.22 - App Store

Saturday is personal fueling for runners, cyclists and triathletes, built by a board-certified sports dietitian and a PhD sport scientist, both former Team USA athletes. Tell it about your training session or race, and it plans what to drink and eat each hour from how much you sweat and the weather, then turns that plan into drinks you mix yourself or the gels and drink mixes you use.

"Saturday has been incredible both with taking the guess work out of fueling and improving my workouts... definitely recommend!" - Dan Laurich, Triathlete

"My half marathon was AMAZING! 7-minute PR! The fuel was great. Everything just clicked. Big confidence boost. I feel ready to get back to my training tomorrow. I’m happy!" - Kasie P., Runner

"If you want to get out of the black box of mid ride/race nutrition needs, Saturday
is the app for you!" - Skip Kastroll - XC & Enduro MTB racer

"I’ve trusted Saturday for everything. From hot laps with the guys to ultra endurance gravel races." - Tarah Romano, Cyclist

"I hate training without it." - Michelle Howe, professional triathlete

Saturday makes elite endurance nutrition accessible and easy so you can be confident and relaxed in training and on race day.

Saturday is designed to deliver the best training session of your life.

Gone are the days of shelling out hundreds on hydration products that are just wild guesses or some corporate-influenced industry "standard."

You deserve better.

Better science.

Better individualization.

Optimized fuel & hydration tailored to you, your training, and your environment, Saturday will revolutionize your endurance experience.

No more paying premium prices for private nutrition coaching, just to have confidence in your fuel & hydration plan.

We should all be able to fuel the sports we love.

Our science.
Your joy.
Taking you farther.

End User License Agreement (EULA): https://saturday.fit/app-terms
Privacy policy: https://saturday.fit/app-privacy

Version History Fixes Prepare Fuel leaving sodium and carbs stuck in grams: tap a gram amount to go back to spoons. Cups, spoons and salt labels now follow your country, workouts planned by distance use your own pace, a workout that arrives twice shows as one card, and one bad workout no longer stops a TrainingPeaks or intervals.icu sync. 1.2.22 4d ago Fixes GU Roctane Energy Drink Mix reading 1 scoop per serving where the label says 2. The plus and minus buttons on Prepare Fuel now move by one mark of the unit on screen, a scanned drink mix comes back with its scoop, and the nutrition of 52 products was corrected against the label. 1.2.21 Sep 22 Fixes a startup error that kept the previous iOS update from opening. Everything you had saved is still there. 1.2.20 Sep 16 Fixes a bug that lost your edits when you backed out of a brick or triathlon fuel plan. Phones set to Spanish, French, German, Portuguese or Japanese now get that language everywhere, reminders and alerts included. Also fixes TrainingPeaks and intervals.icu fuel comments on brick and race days. 1.2.19 Sep 15 Fixes a bug that hid the serving amounts on your past activities. Also in this update: the Prepare screen no longer freezes or holds you on it when a save fails, and page swipes respond the way your finger expects. 1.2.18 Sep 5 Fixes two crashes: one at launch before you were signed in, and one that could hit when a button took you to another screen. New in this update: Our Science, which shows what your water, sodium, and carb numbers are built on, with links to the research. Plain maltodextrin, fructose, and dextrose are selectable again. 1.2.17 Aug 8 Fixes a visual glitch that could draw a yellow underline over numbers while adjusting your fuel plan, and restores the Sweat face on older activity cards that showed a blank space. Also in this update: faster app opening and small polish throughout. 1.2.15 Jul 18 A polish release: the setup tutorial now scrolls properly on every screen size, logging out asks if you meant to switch accounts instead, and if you skip an update, What's New catches you up on a personalized set of any new features you missed. 1.2.12 Jun 16 We gave Saturday a beautiful refresh! The whole app now flows edge to edge with a cleaner, more spacious look, smart menus that slide out of your way as you scroll, and a smoother product picker that keeps its place. Same Saturday you count on — just smoother and easier to use. 1.2.7 Jun 8 We know you count on Saturday to keep your training in sync. This update helps your TrainingPeaks connection stay alive on its own — and if it ever needs you, reconnecting is a single tap. We also smoothed out a sign-in and connection hiccup that affected some, and taught Saturday to speak more of your language. Thank you for fueling with Saturday. 1.2.4 Jun 4 We know you count on Saturday to keep your training in sync. This update helps your TrainingPeaks connection stay alive on its own — and if it ever needs you, reconnecting is a single tap. We've also taught Saturday to speak more of your language, with more ways to understand each other on the way. Thank you for fueling with Saturday. 1.2.3 Jun 2 This update squashes a startup issue that could keep the app from opening for some athletes, plus a handful of stability and reliability fixes. Open it up and pick up right where you left off — thank you for fueling with Saturday. 1.2.2 Jun 1 We know you count on Saturday to dial in your fueling. The prep screen is now more flexible — go a little over on one target to hit another when your products don't line up perfectly. Plus multi-account switching so a whole household can share one phone, and a new Show and Tell mode for introducing Saturday to a friend. 1.1.9 May 26 We know you count on Saturday to keep your fueling dialed in. In this release, you can now link and manage your Google, Apple, and email sign-in methods right from Settings, plus add secondary emails for more flexibility. We also fixed intervals.icu swim durations and made subscriptions more reliable behind the scenes. 1.1.8 Apr 5 We know you count on Saturday to fuel your workouts consistently. Now you can connect Intervals.icu to sync your planned workouts and get carb targets automatically, plus swipe between activity screens for a smoother flow. TrainingPeaks sync is smarter too, with AI-powered workout classification and automatic nutrition comments on completed activities. 1.1.7 Mar 14 We know you count on Saturday to fuel every kind of workout. In this release, we've added lifting sessions as a supported activity type, plus intuitive swipe navigation and haptic feedback! Plus "Undo" safety throughout! Never forget where you are or lose progress again. Everything is smoother, faster, and easier than ever. 1.1.5 Feb 25 We know you count on Saturday to fuel your workouts consistently. Now you can subscribe on the web for a better deal, watch quick videos explaining the science behind your nutrition, and share Saturday with friends more easily. Plus stability fixes to keep everything running smoothly on the newest devices with our nutrition product data extraction AI! 1.1.4 Feb 10 Introducing Race Mode (aka Event Mode) for fueling your biggest efforts on the days that count the most. Mark any activity as an Event and Saturday automatically checks and carefully modifies your fuel plan so you're properly fueled and hydrated when it counts. Tap "Add Event" or the trophy icon on any future activity to try it out. ICYMI, your activity positions in the create activity slide-up are now customizable just like the icons on your phone's home screen. Long-press to check it out! 1.1.3 Feb 1 This update makes managing your activities easier with a redesigned action sheet when you long-press. Duration and intensity pickers now open as clean, centered dialogs. The keyboard intelligently scrolls to keep buttons visible, and we've refined spacing and shapes across the app for a smoother feel. 1.1.2 Jan 28 This update brings a refined, focused experience with blur effects that feel right at home on iOS, smoother page transitions, and easier account management. You can now change your password directly in the app, and sign-in remembers your email. We know you rely on Saturday to get you out the door quickly, so this release has bigger tap targets, smarter product selection, and improved TrainingPeaks connection handling. 1.1.1 Jan 26 We know you count on Saturday to go faster, and that's why we're releasing a preview of Saturday's AI product vision and analysis capabilities. It comes with behind-the-scenes intelligence so that as we all scan more products, Saturday gets smarter for everyone. Just point your camera at any food product, and Saturday will add it to your next workout! Thank you for being with us! 1.1.0 Jan 10 Whether you want to fuel the morning intervals or the weekend epic, or just get your heart rate up for the first time in weeks, we know you count on Saturday to work smoothly. This version gives you more control over your subscription and account management in and outside the app because who doesn't love more control. :) 1.0.107 12/13/2025 We know you count on Saturday to fuel your best performances. We just upgraded Saturday to a modern full-scale backend, paving the way for easier and better subscription management for you, our beloved user.

We're grateful for every workout you plan with us. We look forward to bringing you more features and improvements in future updates! 1.0.105 12/09/2025 We know you count on Saturday to fuel your best performances. This update includes behind-the-scenes improvements to make your experience smoother and more reliable.

Thank you for being part of our community — we're grateful for every workout you plan with us. We look forward to bringing you more features and improvements in future updates! 1.0.103 12/01/2025 From fueling the morning intervals to sharing your nutrition details with your coach on TrainingPeaks, we know you count on Saturday to work smoothly.

This version also contains a few little bug fixes, syncing & usability improvements, and some behind-the-scenes upgrades paving the way for upcoming feature releases. More to come! 1.0.102 09/05/2025