
Ernst Mulders
2.7K posts

Ernst Mulders
@ernstmul
Web/app developer - Product Engineer - Side projects 🚁 @AirAssistApp (in Dutch @LifelinerApp) and ✈️ @WaterbomberApp
Amsterdam, North Holland Katılım Haziran 2015
578 Takip Edilen748 Takipçiler
Sabitlenmiş Tweet

Help saving lives with an app side project? Yes, yes that’s what I do!
Want to know how I got there? You can find the interview on @IndieHackers 🙌🏻
indiehackers.com/post/tech/savi…
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.@RevenueCat, any chance we’ll be getting the YouTube Play button but for MRR? 🙏
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@Erwin_AI Im not part of any of these communities. But the amount of clearly fake MRR screenshots I’m seeing on the for you tab is nauseating
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Unfortunately today it's another frenzy of complete bullshit engagement farming on there.
I'm leaving all communities, including the build in public one.
Rest in peace.
And thank you engagement farmers for ruining it completely.
Erwin@Erwin_AI
I've blocked a couple of serial spammers in the "Build in Public" community and now it's nice again. Sorry not sorry.
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The first version of @AirAssistApp only refreshed aircraft positions every minute (when live positions was already the norm), yet still people paid for it.
I only fixed that after 2-3 months!
Cap@cap
this was Cap's first ever landing page just ship your thing
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@petecodes Early users (2021) of my app had the chance to buy Premium one time for €1.99, nowadays it’s €49.99. Has a ton more features now, but those early days users got rewarded for the support they gave me back then 🙌
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Trying VEO3 for some promo stuff for @AirAssistApp.
It for some reason changes my text as if I asked it to make typo’s and physics is hard 😂
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@jeiting It’s been broken for one app of mine for 2 years now (long before the RC app) would be nice if someone could check why 😅

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@SvenVD_Zee @RevenueCat @AirAssistApp Correction: after I changed the name of the app. The icon change was picked up flawlessly for Waterbomber
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@SvenVD_Zee @RevenueCat After I changed the icon for @AirAssistApp now nearly two years ago it went bust for some reason. Tried to get it fixed, but never got any reply from @RevenueCat. It’s only annoying for me, but still kinda disappointing 😅

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So awesome to see users that are on the app nearly from day one, an bought premium for €2,99 (one time), now switch to the new PRO features for €9,99/month.
The real supporters of @AirAssistApp ❤️

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Really excited about this one 🤩
AirAssist@AirAssistApp
Update 2025.3 is currently being tested! Hopefully the rollout to all users will start later this week 🌧️ 🕰️
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Testing iOS subscription in sandbox environment be like
@RevenueCat any thoughts how I can check if upgrading from one type of subscription (premium) to another (pro) works, without the user subscribing to both?

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@DittmannTorsten @itznotabug Congrats on the series A I guess? Or is raising not required for a .vc?
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Got a fancy new domain for try-module! It was too long and module was probably not the best term for it. Now I have moved everything to pkg.vc 💪
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@levelsio I have a full time job and 3 kids (5, 3 and 1). I get up at 5am to work on my side project (+50k MAU, and quite some MRR). Also rarely watch tv. And yes I still have time to workout. Won’t quit the day job till I’m 100% certain it will keep paying my bills!
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Most people I know who became successful had a main job going and then they made one or many side projects
Then one took off and when that side project made more money than the main job and was stable (like 6 months) they quit the main job
I've only once seen anyone succeed on savings with limited runway and that was @AndreyAzimov but he's the most hardcore guy I know and Ukrainian, so a different breed
You're probably not like him so don't quit your main job
You won't "have more time", the fact you think "I don't have enoug time" is just procrastination for you not shipping, time is just about setting priorities, there's always a few minutes spread over the day you can ship
No excuses!
Klaas@forgebitz
i have rarely seen people make good business decisions when having a really limited amount of runway left everything becomes a panic move
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@petecodes At first I was like whoa whoa whoa 😨
Then I kept reading and it made more sense 😅

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@Aufdecker Did you check @AirAssistApp app? Doesn’t give the exact reason why, but the flightpath might give some clues!
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