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A smart menstrual cycle tracker for teenage girls--think Apple Watch meets periods. A start-up venture founded by two classmates and me.

Y Combinator StartUp School approved.

Crimson Wave

2017 - 2018

Role

StartUp Co-Founder

Team

Margaret Flemings, Rachel Pak

Skills
  • Product Management

  • Web Design

  • Software/Hardware Engineering

  • User Experience Research

  • Social Media Management

  • Public Speaking,

  • Content Strategy

  • Copywriting

  • Photography

  • Advertising

  • Agile Iteration

Results
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THE BIGGER PICTURE

The Problem We Solved

There are ~95.7 million individuals who fall into the average reproductive age, with ~31.2 million of those individuals falling between the ages of 10-24 (US Census Bureau). For those menstruating individuals, their cycle can range anywhere between 20 days to 45 days--and that large window is just for the normal menstrual cycle range. On top of that, any individual’s menstruation can be impacted by countless factors - stress, nutrition, exercise - that shift their cycle anywhere between a few days or a few months. In fact, 30% of women consistently have irregular cycles (EveryDay Health). Our interest in creating a menstrual cycle tracker was specifically sparked when our third co-founder opened up about her PCOS, a medical condition that causes 5 million women in the US to deal with symptoms like severe cramps and extreme variances in cycle lengths. The numbers prove that millions of women don’t fit into the average 29 day cycle that majority of menstrual cycle trackers rely on. This arbitrary average invalidates the genuine experiences of countless women, like us. We want to create a menstrual cycle tracker that grows with us, that reflects the changes we are going through in our lives. That is why Rachel, Margaret, and I started Crimson Wave in October 2017 in our "Tangible User Interfaces" Computer Science course. Since then, Crimson Wave has become a start-up venture far beyond the work we did in that class.

Promotional Photoshoot, Shot by Me ðŸ“¸

What is Crimson Wave?

As an individual goes through the three menstrual cycle stages, their body temperature varies in accordance. Their temperature needs to be calculated when the individual is at complete rest for the most accuracy.


Crimson Wave is a mobile app in sync with a wearable that leverages AI. The wearable collects biometrics, allowing the algorithm to calculate the user’s unique menstrual cycle and provide tailored lifestyle recommendations. Therefore, our product is designed to be a sticky patch, to be worn at night. When the user wakes up, their data has been aggregated and our app displays a live and predictive view of their unique menstrual cycle based on their body temperature. In our first iteration, Crimson Wave was a wearable with a smart mirror. The neopixels placed around the mirror displayed different colors that were correlated to the different stages of the menstrual cycle. After our user study results, our next iteration reflected what users wanted--a mobile app. 

Because of the accuracy with which body temperature indicates menstruation, Crimson Wave can be especially helpful for those who want to learn more about their bodies or whose cycles are unpredictable. 30% of women deal with inconsistent cycles. In particular, we are interested in targeting teenagers and young women, as the first one-two years of one’s cycle are especially irregular. For these users, Crimson wave removes the stress and user error of manually tracking biometrics and inputting information. Our personalized recommendations also empower users to make informed decisions that optimize their day to day life.

Crimson Wave Demo Videos

Our first demo video for the first prototype.

Our second demo video for the first prototype.

What We Executed

Over the course of the year, I wore multiple hats as the CEO and Co-Founder of Crimson Wave.

  1. Executed and managed product life cycle--ideation, requirement, design, development, testing

  2. Engineered prototypes for wearable, smart mirror, and app

  3. Developed business plan, product map, and larger vision

  4. Designed a compelling "Sneak Peek" website

  5. Spearheaded applications to Y Combinator, Draper Competition, WeStart; team lead for Y Combinator

  6. Company representative for all business and marketing engagements (e.g. pitched for investors, initiated networking and mentorship relationships)

  7. Key speaker at several public speaking engagements

  8. Created user research surveys and script, conducted user research studies with two co-founders

  9. Produced written content (i.e. co-author of two computer science papers, composed website content, oversaw blog content, co-managed social media platform) and visual content (i.e. photographed official company images, designed logo, composed advertising copy using Photoshop)

 

Documents: 

 

​Please message me directly if you are interested in our code, business plan, YC application, Draper application, or WeStart application.

My Results

  • Collaborated with two co-founders to build a wearable device and app that track and display biometrics for women’s health; utilized Arduino, biometric sensors, and NeoPixels to engineer first prototype

  • Accepted into Y Combinator StartUp School; 10 week program with mentorship and education from world’s top entrepreneurs

  • Built company website

  • Designed and conducted user research study, comprised of individual interviews and prototype testing with 35 users; generated UX insights that drove second iteration of product

  • First prize winners ($500 prize) at the WeStart-BLC Start-Up Competition; semifinalists ($400 prize) at the Draper Competition for Collegiate Women Entrepreneurs

  • Presented and published product’s design research at the Association for Computing Machinery’s (ACM) Conference on Tangible, Embedded and Embodied Interactions (TEI) in Sweden (March 2018) and CHI in Canada (April 2018)

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Certificate of graduation from Y Combinator StartUp School

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Winning first prize at the Westart-BLC StartUp Competition

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Our conference poster

User Profiles

THE DETAILS:

USER PROFILING

The User Personas

Catherine – As a 21-year-old senior in college, Catherine is balancing a thesis in the sociology department, varsity track and field, and a new girlfriend. She is busy in a truly Wellesley sense of the word, and the least of her worries is keeping track of her menstrual health, especially since she has always been regular since she started having periods. While Catherine technically belongs in the generation of the digital natives, she does not have strong feelings for or against technology. Catherine is able to learn new user interfaces comfortably; however, she prefers to stick to her laptop and her smartphone.

 

  • What – Catherine is annoyed by the nearly constant push notifications her period tracker app keeps throwing her way. Especially since she is not having penetrative sex with anyone who has a penis, Catherine is not necessarily using the app on her phone to make sure that she is on menstrual schedule. In fact, she is not sure why she even bothers to try to keep up with the notifications. She knows, however, that it is a good practice to keep track of her periods, but she wishes that there was an easier

  • How – Catherine does not like to wear too much jewelry throughout the day, so she wears the crimson wave sensor to bed so that, first thing in the morning, it may measure and record her basal body temperature. When she gets out of bed, Catherine walks over to the crimson wave mirror and drops the sensor into the plate attached to its base, which will read Catherine’s physical vital signs as they were recorded. As Catherine is going about, getting ready, the mirror displays the most important things about Catherine’s menstrual cycle, such as the fact that she is ovulating, that she may experience some bodily discomfort, and that she may feel an increase in sexual desire.

  • Where – Catherine is able to use the crimson wave TUI in the comfort and privacy of her own dorm room.

  • Why – Catherine finds that compartmentalizing this particular task of keeping track of her menstrual cycle within the confines of her vanity gives her the ritualistic space to check in on her periods regularly. By embedding the period-tracking process in her routine in a new way crimson wave has helped Catherine find the time to take care of herself.


Nat – As a 26-year-old software engineer at Google, Nat is happily settling into his new life in San Francisco. He is especially excited to be living in a new place because it gives him a chance to introduce himself to new people with the pronouns he prefers. He does have to keep track of his period. As a digital native and a software engineer, Nat is very comfortable with technology, and he enjoys learning about new user interfaces.

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  • What – Nat is frustrated that most (if not all) period tracker apps on the market are pink and coded with “feminine” characteristics. While he could conceivably engineer his own period tracker app, he also wishes that period tracker apps would offer more privacy. For example, Nat’s friend from back home was trying to find Snapchat on his phone when that friend saw his period tracker app, which made Nat uncomfortable.

  • How – With Crimson Wave, Nat does not need to worry about people discovering any sort of period tracker app on his phone. Instead, Nat wears a discreet yet fashionable ring that senses his basal body temperature, which is information that is relayed to the crimson wave mirror. Because mirrors are commonplace objects, his mirror sits on the bathroom counter and informs him what his body is doing.

  • Where – Nat is able to use Crimson Wave in the comfort and privacy of his own apartment.

  • Why – Most people who are able to afford one will own a mirror, and most people can wear whatever jewelry they want without people noticing. Because Crimson Wave is also designed without noticeably gendered characteristics, nobody has any reason to assume that the ring and the mirror belongs to a specific gender.

 

Irene – As a 38-year-old single mother, Irene works as a nurse, and though she is often occupied, Irene has started dating someone. Irene lives a balanced life; however, her periods throw everything out of whack. Due to reasons unknown to her, Irene’s menstrual cycles are very inconsistent, and she can even skip her period three months at a time. Whenever she does have a period, however, Irene gets painful cramps that sometimes cause her to have to call in sick to work. She wishes that she could see these things coming. Irene is comfortable using a computer, a tablet, and a laptop; however, learning new user interfaces is not the easiest thing for her.

 

  • What – Because all of the period tracker apps she has tried assumes a normal, 28-day cycle, Irene finds that they are relatively useless in helping her stay on top of her. She hears about this crimson wave, which measures a person’s basal body temperature and other vital signs in order to measure on a day-to-day basis what is going on in someone’s menstrual health.

  • How - As an early riser, Irene puts on the crimson wave ring, holds her hand to her chest for a moment or two, and places the ring on the specially-designed ring holder at the base of the crimson wave ring. As she gets ready to head out for work, she glances at the mirror display for all of the information she needs to know about her period.

  • Where – Irene is able to use the crimson wave TUI in the comfort and privacy of her own home.

  • Why – Irene knows that period tracker apps are not flexible enough to keep up with her life, and she believes that crimson wave’s algorithms offer a new way of thinking about and tracking menstrual health.

 

Mary – As a 51-year-old curator of a successful gallery in New York City, Mary is going through menopause. While she is able to handle the hot flashes and other physical discomforts, she is having a hard time dealing with her mood swings. She often finds herself calling the doctor’s office in order to ask what she can do to combat her depressive symptoms to no avail, and her older friends do not like to talk about their experience with menopause. Mary is comfortable using a computer, a tablet, and a laptop; however, learning other user interfaces is nearly impossible for her.

 

  • What – Mary hears about crimson wave, a smart mirror that is easy to use that informs people about their menstrual health.

  • How – While Mary does not feel compelled to use the crimson wave wearable, she does use the crimson wave’s mirror to keep track of her menopause and learn methods of coping with her depressive symptoms.

  • Where – Mary is able to use the crimson wave TUI in the comfort and privacy of her own home.

  • Why – While this may not necessarily be a replacement for a doctor or a therapist, Mary enjoys having this convenient mirror on her vanity advising her to go for a walk or try out yoga or take a nap in order to moderate her mood.

The Storyboard
Summarizing Our Users

We expect that our users will be people who have periods and will most likely be under 51 years of age, as that is the average age of menopause. Considering they will have to integrate this technology into their daily lives, they have to feel comfortable with devices and have an interest in using technology to understand their periods. Therefore, we assume many users will be Millennials and Gen Z, though we hope to reach users of all ages. People experiencing the beginning of menopause may also appreciate a device monitoring their periods so it doesn’t show/not show up as unexpectedly.

 

These users may have used period apps in the past and disliked the experience because they had to manually add the information into their devices. We could also assume that users who are more forgetful may be interested in our product since the product is just like wearing a piece of jewelry and doesn’t require consciously inputting data.

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Potential users also may not have liked the period apps because these apps tend to focus on specific parts of the menstrual cycle rather than integrate all aspects together into one interface. Users who are looking for a more accurate holistic view of their periods, ovulation, general cycle, fertility/contraception usage, etc. would be interested in this app. Users who are also passionate about their physical health would enjoy the experience of learning more about their individualized bodies on a day to day basis.

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Lastly, interested users may not have enjoyed their previous experiences with period apps because these apps have a traditional view of menstrual cycles (28 days). Users with irregular periods and reproductive health issues (ex. PCOS, ovarian tumors, weight gain/loss) will be interested in this product because it will not impose generalized averages upon people and works off personal biometrics to give a more accurate and live result.

Prototyping

THE DETAILS:

PROTOTYPING

Creating Mockups

Mockups

First Iteration

Knowing what one’s body needs that specific day within one’s menstrual cycle will allow users to live that day to their full potential. Therefore, our product will educate users and provide the tools for a better life.

 

We were very inspired by a short video that shows how one’s body works throughout its menstrual cycle and its strengths and weaknesses during different stages. We imagine our product will be able to assess these stages and provide advice such as, “Avoid caffeine today to help with upcoming cramps”.

 

“Science fiction writer Bruce Sterling defines design

fiction as ‘the deliberate use of diegetic prototypes to

suspend disbelief about change’. Diegetic prototypes

refer to ‘objects and technologies that exist within

the fictional world’.”

 

In that spirit, we brainstormed our product to fit on anyone’s vanity, desk, bathroom counter, coffee table, or any flat surface and mimic objects with which we are already familiar.

What we imagine is a circular mirror that is outfitted with an LED ring light that is able to indicate with different colors one’s where one is in their menstrual cycle. At the base of this mirror, there will be a jewelry dish/ring holder that will read the information that is collected from a piece of jewelry that is a biometric sensor. This jewelry will be worn by the user on a daily basis so the item can track data like temperature and heart rate. The mirror will read the aggregated data and turn on the LED light to a color that corresponds with the menstrual cycle stage the user is in. The mirror may be motion sensored to conserve energy. If you want to learn about current and past period data, you may speak to the mirror, which will act like an “Alexa” or “Siri” type interface. You can call upon this voice by saying, “Mirror Mirror” and the intelligent personal assistant will respond with what day/stage in the cycle you are, some suggestions about what to do/avoid to optimize your day, your fertility chances, and other important data. Conversation with the assistant will allow the product to note data verbally inputted from the user like mood, body pain, etc. The mirror will also be a touch screen so that users will also have a visual representation of their data. This solution brings periods into the private space of the individual where they often look in the mirror and beautify themselves. This integrates our product into people’s lives. A tangible approach that is well contextualized will get rid of the fact that it can be a hassle to remember to input data into a period tracker app.

Low Fidelity Prototype
A mirror outfitted with lights around it and styrofoam ring holder for the wearable (which was originally meant to be a ring)
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There will be additional features to amplify the user’s experience. For example, in respect for this private space, the product will have facial recognition as a password protection measure. Additionally, the product will offer a feature to export the data to other devices in order to share the information with the user’s doctor, significant other, or chosen confidants. A fun feature in the jewelry is that it will change color, like a mood ring, to also match the menstrual cycle stage the user is in.

 

We believe that this product is well suited to a be a Tangible User Interface [TUI] because this TUI gathers data, specifically temperature, in a non-invasive way that doesn’t interrupt the user’s routine. It also takes this data and displays visual updates on the user’s menstrual cycle on the mirror, effectively integrating it into the user’s movements in a room without turning it into a task or something the user must think about.

Higher Low Fidelity Prototype
An updated version of our mockup. We explored other options for our wearable: first the ring (first img), then a bracelet (second img), an armband (last img), and ultimately a sticky patch (not pictured).
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Horizontal and Feasibility Prototyping Presentation
Prototyping:
High Fidelity in Look,
Medium Fidelity in Feel,
Mixed Fidelity in Depth​​
First Prototype Summary​

Check out my work by visiting Crimson Wave's website and Twitter

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