Before you start

What is TestFlight?

Thank you for being curious about Gyli. It means a lot at this stage, because Gyli isn't finished yet.

We're in the testing phase. That means the app works, we use it ourselves every week, and there are still things in it that only come to light when someone else trains with it. That someone is you.

Helping is simpler than it sounds: use Gyli for your real workouts, and when something is wrong, confusing or just annoying, take a screenshot and send it. Two taps. You don't need to write a report or know anything about apps.

You're not taking a risk to do it. Testing happens inside TestFlight, which is made by Apple and reviewed by Apple. There's no account, no cost and no payment details. Your workouts, moods and notes stay on your iPhone, during the test exactly as afterwards.

TestFlight is Apple's own app for trying apps before they reach the App Store. This page explains the whole process, start to finish.

In one minute

  • Install TestFlight from the App Store. It is free, it is Apple's, and it is where every beta app lives.
  • Open our invitation — an email or a link — and tap Accept, then Install.
  • Use Gyli as you normally would. It sits on your Home Screen like any other app, with an orange dot beside its name.
  • Found something? Take a screenshot and tap Share Beta Feedback. That is the whole job.

What you need

An iPhone

Gyli is iPhone only. TestFlight itself needs iOS 16 or later; Gyli asks for a little more, and the invitation says so before you accept.

Your Apple Account

The one you already use for the App Store. You do not make an account with us — Gyli has no accounts at all.

Nothing else

No payment details, no forms, no cost. Premium is free to testers too — see the small print below for the one quirk in how Apple runs that.

Getting Gyli onto your iPhone

Four steps, all of them on your phone. The screens below are our drawings of the process, not Apple's — yours will look like Apple's app, but the buttons are in the same places and carry the words shown here.

  1. 1

    Install TestFlight

    Open the App Store, search for TestFlight, and install it. It is made by Apple, it is free, and it is about 23 MB. You can do this before the invitation arrives.

    TestFlight is a waiting room, not a store. On its own it shows nothing — apps appear in it only once you have been invited to one.

    App Store

    TestFlight Apple · Free Get
    The App Store, with TestFlight ready to install.
  2. 2

    Open the invitation

    There are two ways in, and you will have one of them.

    An email from Apple. It says you have been invited to test Gyli and carries a button reading View in TestFlight. Tap it on your iPhone and TestFlight opens on Gyli's page. The mail comes from Apple, not from us, so look for it under TestFlight rather than our name.

    A public link. The button on this site is one. Tap it on your iPhone and TestFlight opens on the same page — no email, and we never learn your address.

    Either way, the page you land on describes Gyli and lists what it needs. Tap Learn More to see the devices and iOS versions it will run on.

    Mail

    You're invited to test Gyli

    TestFlight · Apple

    View in TestFlight
    The invitation email. One button, and it opens TestFlight.
  3. 3

    Accept, then install

    On Gyli's page in TestFlight, tap Accept, then Install. Gyli lands on your Home Screen like any other app, with a small orange dot beside its name — that dot is how iOS marks a beta build, and it is the only visible difference.

    Open it from the Home Screen from then on, the same as any app. You can install the beta on up to 30 of your own devices.

    TestFlight

    Gyli VDS Software Design Studio
    Accept Install
    Gyli's page in TestFlight. Accept once, then Install.
  4. 4

    Train, and tell us

    Use Gyli for real training, not a tour. A beta earns its keep when someone logs a fortnight of ordinary workouts in it, because that is where the rough edges are.

    When something is wrong, odd or annoying, send it. How to do that is the next section.

    Home Screen

    Gyli Health
    Gyli on the Home Screen. The orange dot means beta.

Sending feedback

This is the part we actually need. There are three routes, and the first is the one we hope you use.

Fastest

From a screenshot

Take a screenshot inside Gyli, tap the thumbnail in the corner, circle or scribble on what is wrong, tap Done, then Share Beta Feedback. Add a line of comment if you like, and tap Submit.

Longer thoughts

From TestFlight

Open TestFlight, tap Gyli, then Send Beta Feedback. Choose whether to attach a screenshot, write up to 4,000 characters, and tap Submit. If you joined by public link you can add your email so we can reply — it is optional.

If it crashes

From the crash alert

If Gyli quits on you, iOS offers to send the report. Tap Share and, if you can, add what you were doing at the time. That sentence is usually worth more than the report itself.

What makes a report useful

What you expected, what happened instead, and what you had just tapped. A screenshot beats a description. "The rest timer chimed twice after I swapped an exercise" is a fix; "timer is buggy" is a guess.

Rather write an email? Support has the address. We read everything and usually reply within 10 working days.

What we can see

Testing is the one place where a little information does reach us, so here it is in full.

When you send feedback

Apple passes on what you wrote and any screenshot you attached, along with the Gyli version and build, your device model, your iOS version, your language and time zone, and some technical readings Apple includes as standard — battery level, carrier, connection type, free disk space, screen resolution and how long the app had been running.

If we invited you by email, we have that address already. If you joined by public link, we do not — unless you type it into the feedback form or email us yourself.

While you are testing

Apple shows us counts, not content: how many testers installed the build, how many sessions they ran, and how many crashes there were. Nothing in that is tied to a person.

What never leaves your iPhone

Your workouts, sets, moods, journal entries and health data. Testing changes nothing about that — they stay on your iPhone and, if iCloud is on, in your own iCloud. We cannot read them during the beta any more than we can afterwards.

The privacy policy spells out what the app stores and where.

Apple's own part in it

TestFlight is Apple's app and Apple's service, under Apple's privacy policy, not ours. What you send through it goes to Apple and is shared with us. Anything you email us directly does not pass through Apple at all.

The small print of testing

How long does a beta build last?

Ninety days from the day we upload it. After that it stops opening and TestFlight offers you the newer build. Turning on automatic updates in TestFlight's settings means you never meet that wall.

How do I get a new version?

TestFlight tells you when there is one, and Gyli's page there shows Update. With automatic updates on it happens by itself. Each build has a short note from us saying what changed and what we would like you to look at.

Does it cost anything? Is Premium locked?

Nothing, and no. Premium is open to every tester, free, and you are never charged a penny — a test subscription takes no payment details and no real money moves at any point.

My Premium expired. Did I do something wrong?

No — and please don't report it as a bug. A test subscription is not a real one: Apple runs it on a fast clock so that a year of renewals happens in days, and then switches it off. It lasts about a week before it lapses.

Turn it on again from the Premium screen whenever it does. It is free again, as many times as you like. Annoying, we know — but it is Apple's testing system doing its job, and it is the only way the paid parts of the app get tested before anyone pays for them.

Will the beta break my existing data?

It should not, and it never has. But it is a beta: keep anything you would hate to lose backed up, and use the export in Settings now and then. Gyli can hand you your whole history as a file at any time.

How do I stop testing?

Open TestFlight, tap Gyli, and tap Stop Testing. You can delete the app from the Home Screen as well. Neither needs a word to us, and there is no hard feeling in it — if you have a minute, Apple will ask why, and that answer reaches us.

What happens when the beta ends?

Gyli goes on the App Store and the TestFlight copy stops working. You install the App Store version over it, and your data stays where it is.

Is TestFlight safe?

It is Apple's own app, and every beta build goes through Apple before it reaches you. The sound advice that applies to any invitation applies here too: only accept ones you were expecting, from a developer you meant to test for.

Ready to join?

The beta is not open yet. The button on the front page goes live the moment it is.

Back to Gyli

TestFlight and App Store are trademarks of Apple Inc. This page is written by us to help our testers; it is not Apple documentation, and the screens on it are our own drawings. Apple's own instructions are at testflight.apple.com.