Inosc

A habit app for two people

Habits are hard alone.So grow them together.

Your habits keep your tree alive. Every day you both show up, your roots grow. After 66 of those days, your roots meet.

Get Inoscon the App Store See how it works

For iPhone.

Most habit apps are between you and a streak. Inosc is between you and one other person.

How it works

Two people. Two trees. One root system.

1

Five habits each.

You pick yours, they pick theirs, and each of you marks one as your priority. A day counts at four points: each habit is one point, your priority is two.

The Habits screen: today's five habits with ticks, and your partner's habits below.
2

Nudge each other.

Pair up by sending your code to one person. Their ticks and photos show up within seconds, and if one of you forgets, the other can send a nudge.

A nudge from Ben: your Read 20 pages is still waiting.
3

Grow toward each other.

Your days keep your tree in leaf. The days you both show up grow your roots toward each other. Miss a few days and your tree turns amber and rests. It never dies, and nothing in the app scolds you.

Ana's tree and Ben's tree on day 32, their roots growing toward each other.
4

Starting solo? That works too.

Grow your own tree, and invite a friend whenever you're ready.

A single tree on day 35.

The roots

Every day you both show up, your roots grow toward each other.

66of 66 days together

Keep scrolling. Each day adds a little more root. At 66 days, they meet. That's about how long a new habit takes to feel automatic.

That's why it's called Inosc

Two people, close enough for long enough, until something grows between them that neither could grow alone.

In the app it takes 66 days of showing up together. Then your roots meet.

Backed by research

We didn't pick 66 days at random.

And doing it together isn't just nicer. The research says it works better.

European Journal of Social Psychology · 2010

How are habits formed: Modelling habit formation in the real world

Lally et al. · University College London

Typically, 66 days for a new habit to feel automatic.

Missing a day didn't undo it.

JAMA Internal Medicine · 2015

The influence of partner's behavior on health behavior change

Jackson et al. · University College London

People were 6× more likely to quit smoking when their partner quit too.

Couples who changed together did best.

JAMA Internal Medicine · 2015

The influence of partner's behavior on health behavior change

Jackson et al. · University College London

2 in 3 got more active when their partner did too.

When their partner didn't, just 1 in 4.

Annals of Behavioral Medicine · 2012

Aerobic exercise is promoted when individual performance affects the group

Irwin et al. · Michigan State University

With a partner, people exercised twice as long.

22 minutes instead of 11.

Journal of Consulting and Clinical Psychology · 1999

Benefits of recruiting participants with friends and increasing social support

Wing & Jeffery

With friends, nearly 3× as many people kept the weight off.

66% kept it off. Alone, just 24%.

Real trees

Every 100 downloads plants a real tree.

The tree on your screen grows when you show up. We wanted Inosc to grow something real too. So for every hundred people who download it, we plant a tree in real ground.

100 downloads 1 real tree
Get Inoscand help plant the next one