Support

Answers to the most common questions. If you can't find yours, write to us.

How much does it cost, and what is free?

First Strides is free to download. Weight, meals, shopping list, Apple Health, reminders and sending plans to your partner stay free. First Strides Plus unlocks the coach, weekly plans with videos, meal plans and video search: €9.99 per year after a 7-day free trial (the price may vary by country and is shown in the app, in your currency, before you subscribe). The AI runs on your own Claude key, which you pay for separately, directly to Anthropic.

How does the subscription work?

Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. Apple handles everything: we receive no payment details. Terms of Use (Apple's standard) · Privacy Policy.

How do I manage or cancel the subscription?

On your iPhone: Settings › your name › Subscriptions › First Strides Plus.

How do I restore my purchase?

In the app: Coach › Discover First Strides Plus › Restore Purchases. Use the same Apple Account you subscribed with.

How do I get my AI key?

Follow the step-by-step key guide: about 10 minutes, once. The same guide is built into the app (Coach › “How to get the key”).

The coach does not answer or says my key does not work
  • Check that you pasted the whole key, with no spaces at the beginning or end.
  • In the Anthropic console, check that the key still exists and that you still have credits and have not reached the monthly limit you set.
  • Check your internet connection.
  • If nothing helps, create a new key and paste it in the app.
What does the coach receive?

Only after you gave your explicit consent, and only when you make a request: a summary of your name, sex, age, height and goal, your weight and body composition, meals, steps, sleep, resting heart rate and workouts, and the coach's notes about you, plus your message. It goes straight from your iPhone to Anthropic with your own key, and never to us. You can withdraw your consent in the app's settings at any time. See the privacy policy.

A video does not play or is the wrong one

Videos come from YouTube and play inside the app, so they need an internet connection, and a video can disappear from YouTube. On the exercise screen you can search for another one.

I'm not getting reminders
  • Check iOS Settings › Notifications › First Strides and make sure notifications are allowed.
  • Check Focus / Do Not Disturb and Notification Summary.
How do I send plans to my partner?

In the app you can send your weekly plan, meals and shopping list with a tap. The app creates a file that you share yourself (Messages, AirDrop…) and your partner opens it with First Strides. We never see it.

How do I change Apple Health access?

In iPhone Settings › Health you choose which data First Strides can read and write. The app keeps working without it, only with less data. Weight, body fat and lean mass saved to Health stay there until you delete them in the Health app.

Does it sync between my iPhone, iPad and Mac?

No. The data lives only on the iPhone where you entered it. There is no account and no cloud.

How do I delete my data?

Delete the app: iOS removes all its data from the device (older backups may keep copies until they are replaced). You can also withdraw your AI consent and delete your key in the app's settings. Data saved to Apple Health is deleted in the Health app.

Which iPhones are supported?

iPhone with iOS 17 or later. The app is available in English, Italian, French, German and Spanish, and is for adults (18 or older).

Is it a medical app?

No. First Strides gives general fitness and nutrition guidance and is not a medical service. Talk to your doctor before starting a new exercise or diet program.

Contact us

Write to support@nathco.app. To help us, please include your iPhone model, the iOS version, the app version (shown in the app's Settings) and what happened.