Mightier
Founded 2016 · 52 employees on LinkedIn · 8 known investors
Mightier develops technology to help children build emotional regulation and resilience skills. The company serves children and families through digital tools designed to improve emotional health and wellbeing.
Also known as Mightier
Investors · 8
Also in the syndicate · 3
Company profile
researched Aug 2026Mightier is a Boston-based children's mental health company that pairs video games with heart-rate biofeedback to teach emotional regulation. Children wear a Bluetooth heart rate sensor while playing games on the Mightier Kid App; an in-game emotion meter called the Gizmo visualizes their heart rate when they become overexcited, frustrated or stressed, and children practice evidence-based calming techniques such as progressive muscle relaxation, deep breathing and mindful tracing to lower their heart rate and resume play. The stated goal is for children to internalize these skills and transfer them to everyday situations. The program is positioned for children ages 6-14 dealing with anxiety, ADHD, anger, autism, outbursts and oppositional defiant disorder, and the company recommends about 45 minutes of play per week.
The subscription includes a hardware kit with a rechargeable heart sensor and a deck of Conversation Cards, an optional dedicated GamePad device preloaded only with Mightier games, an app library of more than 25 games, monthly mailed Skill Packs of crafts, games and stories organized around an emotion and a calming skill (digital versions for international customers), and a Parent App providing real-time progress data, articles and resources. The company's approach was developed and tested at Boston Children's Hospital and Harvard Medical School and is described as backed by a decade of clinical research.
Alongside the direct-to-family offering, Mightier markets to employers, clinicians and schools, and in 2021 entered a strategic partnership with Magellan Health under which it began offering its program to health plans and employers and collaborated on studies and pilot programs, including research on children with autism.
Founding story
Mightier was co-founded by Craig Lund, who serves as chief executive officer, and Jason Kahn PhD, chief science officer and a part-time instructor of psychiatry at Boston Children's Hospital and Harvard Medical School. The program grew out of clinical research conducted at Boston Children's Hospital and Harvard Medical School into the use of play and biofeedback for children's emotional regulation.
Business model
Mightier sells a consumer subscription that bundles hardware (a heart rate sensor, Conversation Cards and an optional GamePad), a game app, mailed or digital monthly Skill Packs, and a Parent App. It also distributes through partner channels aimed at employers, clinicians and schools, and through a partnership with Magellan Healthcare it offers the program to health plans and employers.
Subscription plans billed monthly at $40/month, six months at $34/month ($204 billed), or twelve months at $28/month ($336 billed), with an optional $50 GamePad add-on. Purchases can be paid with HSA/FSA funds and carry a 90-day money-back guarantee. Shipping rates, taxes, VAT and duties are charged at checkout for international orders.
Traction
The company reported having helped over 50,000 families since its 2018 launch. Company materials state that 87% of families see positive change within 90 days, and clinical results cited include reductions in outbursts of 62 percent, oppositional behavior of 40 percent and family stress of 19 percent, plus a 45% improvement in symptoms for children on the autism spectrum in a study completed in May 2021.
Latest developments
The company continues to sell family subscriptions with hardware kits, monthly Skill Packs and the Parent App, and markets partner programs for employers, clinicians and schools. Its leadership team includes CEO and co-founder Craig Lund, co-founder and Chief Science Officer Jason Kahn, and COO Daniel Gutierrez, formerly of DraftKings.
▸Full profile — market position, technology, go-to-market, geography, history
Market position
Positioned as a clinically validated, at-home children's emotional health program developed by clinicians at Boston Children's Hospital and Harvard Medical School, addressing demand created by a shortage of pediatric behavioral health clinicians.
Combines gameplay with a wearable heart rate sensor so that calming down is a mechanic of the game, backed by clinical trials and development at Boston Children's Hospital and Harvard Medical School; delivered at home with a closed-device option, monthly physical Skill Packs and a parent-facing progress app.
Technology
A Bluetooth heart rate sensor paired with a library of over 25 mobile games that incorporate real-time heart rate biofeedback through an in-game emotion meter (the Gizmo). Games are delivered via the Mightier Kid App on Android 9+, iOS 14+ and iPadOS 14+ devices or on a dedicated preloaded GamePad without internet or third-party app access; a companion Parent App provides progress tracking. The approach is built on evidence-based calming techniques including progressive muscle relaxation, deep breathing and mindful tracing.
Go-to-market
Direct-to-consumer sales via the company website with subscription plans, a fit questionnaire, free printable skill pack lead capture, and a 90-day money-back guarantee; complemented by dedicated partner channels for employers, clinicians and schools and a health plan/employer distribution partnership with Magellan Healthcare.
Families with children ages 6-14 who struggle with anxiety, tantrums, anger, outbursts, ADHD, oppositional defiant disorder or autism spectrum disorder; secondary channels target employers, clinicians, schools and health plans.
Geography
Headquartered in Boston. Ships worldwide, with U.S. delivery typically in 5-8 business days and 15 business days for Hawaii, Alaska, Puerto Rico, the U.S. Virgin Islands and international destinations. Mailed Skill Packs are available in the U.S., with digital versions internationally. Website content is offered in English, Spanish, Canadian French, Hmong, Somali, Vietnamese, Arabic, Russian, Chinese (Simplified) and Ukrainian.
History
The product launched in 2018. In 2021 the company entered a strategic partnership with Magellan Health to offer its program to health plans and employers, ran joint studies and pilot programs, and in December 2021 announced a $17 million Series B round bringing total funding to $29 million.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 2
by search overlapCompanies competing with Mightier for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 3
launches, deals, and filingsMightier announced a $17 million Series B round led by DigiTx Partners with participation from the Sony Innovation Fund by IGV and Boston-based PBJ Capital, bringing total funding to $29 million. Proceeds were earmarked for team expansion, scaling the technology, and expanding into the healthcare industry via its Magellan Health partnership.
$17M source ↗
Mightier entered a strategic partnership with Magellan Health, through which it began offering its video game program to health plans and employers and collaborated on studies and pilot programs, including a study completed in May 2021 on children with autism.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- Mightiermightier.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Mightier do?
- Mightier sells a biofeedback video game system that teaches children ages 6-14 emotional regulation and calming skills.
- Who are Mightier's investors?
- Mightier's investors include Asset Management Company, DigiTx Partners LLC, Eastward Capital Partners, Gutbrain Ventures, Sony Ventures Corporation.

