iPhone Screenshots


Do you want to lose weight and feel happy with your body? Are you a late night snacker?

Have you tried every kind of diet? Then let me help you lose weight and change your relationship with food forever.

All your decisions about what you eat and how much you eat, take place in your mind.

This app is designed to psychologically reboot your life by altering your thoughts, habits and patterns related to weight loss. Over seven life-changing days, I will serve as an interactive virtual hypnotherapist, guide and mentor, with customized coaching to serve your needs and help you stop overeating, control cravings and feel totally motivated to take exercise.

Everything that I would do in a personal session to help you lose weight is on this system and I will introduce you to cutting-edge psychological techniques that will help you to change your relationship with food for ever.

There are no diet plans and no calorie counting. My system has taken decades to develop and now it's your turn. This weight-loss system has already been used by millions people worldwide and you can use it again and again as I work with you to easily re-pattern your thoughts, attitudes and beliefs about food, your body and yourself.

Take control and lose weight.

Paul McKenna, PhD. is an international best-selling author whose books have sold more than seven million copies and been translated into 32 languages. He is the number one hypnotherapist in the world, and is renowned for helping people overcome problems that usually take months to work through, in a matter of hours. Recognized by The Times of London as one of “the world’s most important modern self-help gurus,”

Find out more at www.paulmckenna.com

For support and questions please visit https://oncebyten.zendesk.com

Do not use this app while driving or operating machinery, or if you suffer from epilepsy please consult you doctor first. Use the app when you can safely concentrate and in required situations relax completely.

What's New

Version 1.2

Keep up the great work with your plan. This update fixes a few bugs affecting a small number of users.

Ratings and Reviews

2.7 out of 5

19 Ratings

19 Ratings

Everything Paul does is life changing


I see comments here that there is no sound; if that was the case, the issue is resolved.

I was upset when I lost I Can Make You Thin app, but this is even better!! Much higher accountability with the check ins and my discipline is somewhat lacking, so I need that! I lost 68 lbs using the previous app ICMYT, then some tragedies happened in my life and I stopped doing everything. Gained back all the weight. I'm finally ready to try again and I know this app will help me do it! It already has. It has the same basic info as ICMYT, but it's better organized with more accountability.

The only thing I'd like is the ability to define my own night and day. Sometimes work midnights and I can't find a way to adjust time. Just like in life! 😂

If you need to lose weight and change your lifestyle, don't even hesitate to get this app!

Actual use of app terrible

Excited to Disappointed

It's such a pity that a comprehensive app like this gets such bad reviews. Which makes it seem like the quality of content is bad. More money should have been spent on app developers. It doesn't functional the pause and done button. The night sessions don't know if you've completed it. It's simple and easy to navigate with great content but the usability of the app is terrible so I wouldn't buy his other app cause of this experience.

Sound issue persists


I got out of order and tried to return to earlier apps. Following this, I have now experienced the same lack of sound on the app that has been noted before. This review is from early February 2018. I found the app super effective and really really helpful. But now the sound is gone and it’s very annoying because I’m trying to find it. App developers please take care of this problem soon!


Once Byten Ltd
177.2 MB
Health & Fitness
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
Infrequent/Mild Alcohol, Tobacco, or Drug Use or References
© McKenna Made LLC


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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