Take the right insulin dose at the right time

The InPen™ is a reusable smart insulin pen that uses Bluetooth® technology to send dose information to a mobile app. Offering dose calculations and tracking, InPen helps take some of the mental math out of your diabetes management.

Get started with InPen

The pen

Insulin needle
Insulin cartridge holder
Dose window
Dose knob
Injection button
The Pen

The app

Dose calculator
Current glucose
Active insulin remaining
Meal history
Glucose history
Dose history
Activity log
The app

Dosing calculator

Take the guesswork out of dosing

The app uses your glucose levels and a carbohydrate estimate to recommend the dose that’s right for you. It even considers the amount of insulin that’s still working in your body, to help you avoid lows.

Dose reminders

Avoid missed insulin doses

The InPen app can help you avoid missed insulin doses. It allows you to set reminders to take insulin at common meal times.

Carb counting support

Estimate carbs or choose a fixed dose

The InPen app can help you estimate carbs based on your meal size. There’s also a fixed dose option that allows you to choose the same carb amount for a specific meal each day.

Digital logbook

Track dosing data on your phone

The InPen app works like a digital logbook, tracking your dosing data on your phone. Plus, reports can be easily shared with your healthcare team.

Real customers. Real insights.

A therapy helping people living with diabetes manage their insulin dosing more easily.



"With the InPen, I have the freedom to manage my diabetes with a device that doesn’t need to be attached to me. I have support through the InPen app that guides my diabetes management choices." Φ




"I absolutely LOVE my InPen! It’s great for when I discuss going on a pump break with my healthcare provider so I can transition from a pump to multiple daily injections." Φ




“My InPen has been helpful for managing my type 1 diabetes! Especially reducing insulin stacking! It has allowed me to keep track of my doses so much easier!” Φ


The support you need, when you need it

Whether you're new to injection therapy or an experienced user – our support is tailored to you. Here are the options we offer at no-cost:

24-Hour Technical Support

24-Hour Technical Support

We offer round-the-clock support for any issues you might encounter. When you need us call 1-800-646-4633 and select option 1.

24-Hour Technical Support

Hands-on product training

In-person or online trainings help you get started on the right foot and make sure you have everything you need to be successful on your new therapy.

24-Hour Technical Support

Online educational resources

Interested in learning more about your diabetes device on your own? We offer a variety of resources available online to help.

Pay as little as $35* for InPen

Pay as little as $35* for InPen

We don't want cost to be a roadblock to you getting the therapy you need. With the InPen™ access program, you could pay as little as $35*.

Get started with InPen

*Offer is available to people with commercial insurance. Terms and conditions apply.

Frequently asked questions

The InPen is the only FDA-cleared smart3 insulin pen that combines the freedom of Bluetooth® technology and intelligence through an easy to use smartphone app, helping people administer correction and mealtime insulin doses.

InPen is a prescription-only device. Eligible patients with commercial insurance may pay as little as $35 per prescribed InPen. Each InPen is reusable for one year. Terms and conditions apply. Learn more.

Cartridges are not included with InPen. You’ll need a separate prescription for cartridges. Cartridges can be ordered from the same pharmacy where you get your other diabetes supplies. InPen is compatible with Humalog, Novolog and Fiasp U-100 3.0 mL insulin cartridges.

The InPen app allows you to manually log your long-acting insulin doses and set up dose reminders to take your long-acting insulin, but the injector itself is only indicated for use with the following short-acting insulins: Novolog, Humalog, and Fiasp.

Yes, you can pair as many InPens as you need to the app. This enables the flexibility for you to have one InPen at home and another at work or school.

Note: Make sure your paired device is within range of your InPen when you dose. Your InPen app will automatically sync doses from all paired InPen(s) when within range.

Active Insulin, also known as insulin-on-board (IOB), is an estimate of how much insulin from recent doses is still active in your body. For example, if you take a 5 unit dose, there will initially be a full 5.0 units in your body. Over several hours this will decrease as your body uses the insulin. The InPen app shows active insulin from rapid-acting and mealtime insulin only, not long-acting or basal insulin.

Active insulin is shown on the homescreen below the calculate dose button. This number shows your total active insulin based on all rapid-acting and mealtime doses from the past eight hours.

Yes, the i-Port Advance injection port is compatible with the InPen. Needles used with the i-Port Advance injection port need to be 5-8mm (3/16-5/16”) in length and 32-28 gauge.

Yes, the integration is compatible with both iOS and Android devices, however you should check compatibility for both the Guardian Connect system and the InPen app prior to ordering.


Φ Compensated for time. Thoughts and opinions are individual's own.

∆ Humalog® is a registered trademarks of Eli Lilly and Company. Fiasp® and Novolog® are registered trademarks of Novo Nordisk A/S.

Each InPen is reusable for one year. Offer available to eligible patients with commercial insurance. Terms and conditions apply. Learn more.

The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Medtronic is under license.

Important Safety Information: InPen™

The InPen™ is a home- use reusable pen injector for single- patient use by people with diabetes under the supervision of an adult caregiver, or by a patient age 7 and older for the self- injection of a desired dose of insulin and for calculating an insulin dose or carbohydrate intake based on user entered data. A healthcare professional must assist in dosage programming of the device prior to use, based on various patient- specific criteria and targets. The InPen™ requires a prescription. For additional product and safety information, please consult the Instructions for Use and bit.ly/InPenRisks.