But sticking with a Kegel routine can be hard (and boring!). That's where Boost comes in:

Reviews From Boost Users

  • Features

    Easy to use

    Just sit down on Boost (with your clothes on), open the app, and begin exercising. The soft Air Pillow conforms to your body and senses your Kegels.

    Makes Kegels fun

    Exercising is more engaging if you turn it into a game.

    Guided Workouts

    Boost takes the guess-work out of Kegels, by guiding you through adaptive games and workouts.

    Tracks Performance

    Exercise is much more fulfilling when you can measure your progress


    Pelvic floor muscles are hidden. Biofeedback promotes good technique and results.

  • Specs

    • Eco-friendly USB-rechargeable battery
    • Leave your clothes on - just sit down on Boost and you're ready to get started
    • 1-year manufacturer's warranty
    • Size: 7 x 4 x 1 inch
    • App Compatibility: The Boost app is available for both iOS and Android phones and tablets (iOS version 13 and higher, and Android version 8 and higher). Please ask us (contact@pelvifly.com) if you're unsure about compatibility with your device.

Getting Started with Boost

Frequently Asked Questions

We've compiled the most common questions we get about Boost, along with our answers below (click on each question to view the answer). If you have any other questions, please browse our complete Boost Quick-Start Guide, and don't hesitate to contact us at contact@pelvifly.com. We will respond within one business day (and often sooner!).

The Boost device

How do you turn Boost on?

Press and hold the Power button on Boost for at least 1 second. When Boost turns on, the Status Light should light up in white

How do you turnBoost off?

Press and hold the Power button on Boost for at least 2 seconds (the circular blue button between the Soft Air Pillow and the Status Light). When Boost turns off, the Status Light should turn off as well.

What is the battery life?

It depends on whether you have the vibration biofeedback turned on, but the worst case should be 2 hours of usage per charge and usually it will be more.

How do I a recharge Boost?

It depends on whether you have the vibration biofeedback turned on, but the worst case should be 2 hours of usage per charge and usually it will be more.

How long does it take recharge?

Boost should charge in 90 minutes or less. When charging, the Status Light on Boost will be pulsing green. When it is done charging, the light will change from pulsing to continuously on, still in green.

Boost seems over under inflated. How do I fixed it?

This is common when Boost travels, especially by plane or to a place with different elevation (like the mountains). It’s no big deal, though -- just press the Travel Vent on the bottom side of Boost to open the valve for a second (making sure you’re not squeezing the Soft Air Pillow). That will let Boost equalize the pressure in the Soft Air Pillow and reinflate.

Why is Boost providing biofeedback (visual or vibration tactile) even when I'm not activating pelvic floor muscles?

It’s probably not calibrated to your current body position; you can manually recalibrate at any time by briefly pressing the Power button on Boost, or while you’re in a workout by pressing the Calibrate button in the app. Always make sure that your pelvic floor muscles are fully relaxed (and try to have good posture) when you calibrate.

How do I recalibrate Boost?

  • There are two ways. You can press the Calibrate button in the top right of any workout screen in the app (during a workout).
  • Or, anytime Boost is turned on, you can recalibrate by briefly pressing the Power button on Boost (if you hold it down too long, though, you’ll turn Boost off).
  • Whenever you recalibrate, it will cause Boost to re-zero the measurement baseline at the instant that you calibrated, so try to have good posture and fully relax your pelvic floor muscles when you do it.

How do I enable or disable the Vibration Biofeedback?

Use the toggle switch in the Settings tab of the app. When the toggle is “on”, Boost will provide vibration biofeedback during workouts. When the toggle is “off”, Boost will not provide any vibration biofeedback.

Is Boost waterproof?

No, Boost is not waterproof. But it shouldn’t ever need to be -- if you need to clean it, you can just wipe it down with a damp washcloth.

How can I clean Boost?

It should stay pretty clean, but if you need to clean it you can wipe it down with a damp washcloth.

The Boost App

Is my phone/tablet compatible with Boost?

The Boost app is compatible with iPhones/iPads and Android devices (Android version 10 and newer) that have Bluetooth Low Energy (BLE) compatibility. Please ask us (contact@pelvifly.com) if you're unsure about compatibility with your device.

How do I connect Boost to the app?

The app will automatically try to connect to Boost whenever it is launched, so it’s a good idea to turn Boost on before you open the app. Or, you can always manually connect or disconnect using the “Connect” or “Disconnect” button in the Settings tab of the app.

What do the workout scores mean/ what should my scores be?

The workout scores are all on a scale of 0-10 where 10 is the best. But, they are designed as a relative tool and not absolute. In other words, there is no specific number or range that is universally “good” for all users. If your scores are increasing (on average; it’s normal for there to be day-to-day fluctuations) then you’re on the right track.

Scores are provided for the overall workout and for specific aspects of muscle function; namely Strength, Endurance, and Control (which includes the ability to relax your pelvic floor muscles).

How are the workouts designed?

Each workout is designed so that it forces you to work on multiple different aspects of your pelvic floor muscle function, such as strength, endurance, muscle motor control, muscle relaxation, and quick-twitch muscle response. They are also intended to be more fun than just sitting around and doing Kegels on your own. Or, if you want to really zero in on certain aspects of your muscle function, the Custom Workouts tool is a great way to do that.


Do I need to take my close off to use Boost?

No. In general, Boost should be able to accurately measure your pelvic floor muscle activation even through your pants (please note that it is important to make sure that you are calibrating Boost at the beginning of each workout). The one exception in terms of clothes is if you are wearing really stiff pants; this may interfere with Boost’s measurements and require a change of clothes to use it.

What kind of clothing is OK?

Boost works well with nearly all types of clothing. The one exception we have found is if you are wearing extremely stiff pants (really stiff denim is an example). In this case, you may need to change clothes to something more relaxed to use Boost.

How do I sit on Boost?

Sit on it like it’s a bike seat, with your perineum on top of the Soft Air Pillow. Most people find that having the button pointing backwards works best but either orientation (button in the front or the back) can work.

Is Boost (or are pelvic floor exercise) right for everyone?

No. In particular, those with pelvic floor muscles that are hypertonic, or too tense, should not be doing Kegel exercise, since this can exacerbate pelvic pain or other problems that hypertonic pelvic floor muscles can cause. More generally, the ultimate authorities on your body / pelvic floor muscles are you and your doctor or physical therapist -- checking with them about any questions or problems is always the right idea.

How often should I exercise?

There is a good bit of flexibility here. Exercising every day, for 5-15 minutes per day, is probably the optimal regimen, but we know that doesn’t fit into everyone’s schedule. Our experience has been that doing at least 5 minutes of pelvic floor exercise per day, 3 days per week, generally results in measurable improvements in pelvic floor muscle function (i.e. Boost workout score averages) within 6-8 weeks. But exercising more frequently will generally lead to faster and/or larger improvements. Listen to your body and be sure not to over-exercise.

How long should it take to start seeing results?

It depends on your starting point, and your workout regimen (how much and how often you are doing workouts). But if you’re working out at least 3 days per week, for at least 5 minutes per day, our experience is that you will usually see measurable improvements in pelvic floor muscle function (i.e. Boost workout score averages) within 6-8 weeks.