Andres Gutierrez | building ChainDay + 日本語

React / React Native dev, 10 yrs. Building ChainDay, a habit tracker for iOS. Shipping in public. Learning 日本語 along the way.

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

bottom of the list: showing people their broken streak. in one set of experiments, 45% kept going when the app pointed out the break vs 61% when it didn't. so chainday doesn't make a thing out of a missed day

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

ranked habit techniques by the evidence behind them. planning for obstacles came out on top: decide ahead of time what you'll do if something gets in the way

so in chainday the backup plan goes right above the habit, under the cue. on a bad day it's the first thing you see

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

cues ("after i turn off the alarm, i meditate") come next. a 2024 review of 642 tests found they help people actually do the thing, but there's less proof they make it automatic. that's why they're one tier down

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

@pcshipp Good to know. I will mental prepare for Reddit. lol

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

@pcshipp I think it takes about 6 months before you get a good sense if your app will make money and to start getting organic traffic through Apple. You have to do some market research to see if there is demand for your App and what is the competition. Use something like Astro.

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

trying it myself, wish me luck

did market research in Astro and the demand is there. the hard part is getting into the top 10 for your keywords, that's where the money is

this Adam Lyttle video is how i learned to understand Astro
https://t.co/gTeB0L9V1c
gives you a good idea of how much demand there is before you build and how much money you might make with that demadn. i recommend all his stuff

"making money" is vague too. my realistic goal is $1k MRR within a year, $3k feels doable. to really get somewhere it probably needs to be 10x, 100x or 1000x better than the other apps

agree with the december/january take in the replies, new year is when people go looking for habit apps

here's the one i'm building
https://t.co/FMFI9eGUt2

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

messing around with claude motion design for a chainday promo, the habit tracker i'm building

what do you think of the motion and where the app is at?

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

@not_sacke Aside because I tried every other AI browser and still helps me get things done. Also they update it a lot with good features.

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

the study if you want to read it: https://t.co/qujZGBhcfV

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

you've probably heard it takes 21 days to build a habit. a ucl study (lally 2010) followed 96 people and found the median was 66 days, anywhere from 18 to 254

that gap is why a lot of people quit. if you expect 21 days, day 30 still feeling hard looks like failure. if you know it's closer to 2 months, day 30 is about halfway

knowing how long it takes helps you:
- keep going right when it's starting to work
- see how far along you are, which makes it easier to stick with
- give hard habits more time instead of thinking you're doing it wrong

that's why chainday shows roughly how long your habit should take when you set it up: as fast as 20 days for simple stuff, 60 for average, 120 for hard ones like the gym

would you actually use this? does knowing the number help you, or is it just another stat you'd ignore

#buildinpublic

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

@ios_dev_alb Why need app!!!!!!!

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

カードの元ネタはこれ。3:42あたり。スーパーのトライアルを特集したビジネス番組
https://t.co/TCPafSQE46

間違ってたら教えてください

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

what keeps me going: my japanese happiness moment. that aha moment when something finally clicks. i rub my hands out of joy and feel like my japanese leveled up

today's: this card sat in reviews 2 weeks. i knew しない, but not せぬ or why an old form shows up here

what's yours

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

こういう古い形は決まった言い方に残ってる：予期せぬ出来事、知らぬ間に、見知らぬ人。英語の「if need be（必要なら）」も同じパターン

「予期」自体が硬めの書き言葉だから、古い形がしっくりくるみたい

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

@thomasroux Ya, maybe a collapsible section to hide if you want. I will keep iterating. Thanks for the feedback, Thomas I appreciate it.

[Andres Gutierrez | building ChainDay + 日本語 @builtbyandres]

still working on the habit page in chainday

cue: what sets it off
habit: the thing you do
reward: what you get right after
who you're becoming: the bigger goal

would this layout make you more likely to do the habit, or is it too much

#buildinpublic