Alexey Kachalov
@alexeyunione.bsky.social
🚀 CTO & Co-founder https://unione.io/:
1000+ clients, no VC, global #startup by the team of 4 🎯
20+ years crafting #code & #business
1000+ clients, no VC, global #startup by the team of 4 🎯
20+ years crafting #code & #business
When a user hits an error, their emotional path is always the same: first confusion, then frustration, and if nothing helps them right away, they’re already thinking about leaving.
December 12, 2025 at 5:45 PM
When a user hits an error, their emotional path is always the same: first confusion, then frustration, and if nothing helps them right away, they’re already thinking about leaving.
Before you add any new piece of friction to your product, talk to a lawyer.
We were about to implement an extra mandatory consent step, already estimating how much development time it would eat and how much it would hurt conversion
⬇️
We were about to implement an extra mandatory consent step, already estimating how much development time it would eat and how much it would hurt conversion
⬇️
December 11, 2025 at 5:37 PM
Before you add any new piece of friction to your product, talk to a lawyer.
We were about to implement an extra mandatory consent step, already estimating how much development time it would eat and how much it would hurt conversion
⬇️
We were about to implement an extra mandatory consent step, already estimating how much development time it would eat and how much it would hurt conversion
⬇️
We recently spent 15 minutes debating where a tiny policy checkbox should live in the UI, as if its exact coordinates were going to define the fate of the product. The funny part is that users absolutely do not care about any of that - they care about how quickly they get to value, nothing else.
🔽
🔽
December 10, 2025 at 6:26 PM
We recently spent 15 minutes debating where a tiny policy checkbox should live in the UI, as if its exact coordinates were going to define the fate of the product. The funny part is that users absolutely do not care about any of that - they care about how quickly they get to value, nothing else.
🔽
🔽
Most login errors just say 'Something went wrong', which is completely useless, both technically and commercially.
We replaced it with a simple line 'Maybe you don’t have an account yet. Click here to sign up' and that tiny change actually increased sign-ups!
Microcopy matters a lot :)
We replaced it with a simple line 'Maybe you don’t have an account yet. Click here to sign up' and that tiny change actually increased sign-ups!
Microcopy matters a lot :)
December 9, 2025 at 5:42 PM
Most login errors just say 'Something went wrong', which is completely useless, both technically and commercially.
We replaced it with a simple line 'Maybe you don’t have an account yet. Click here to sign up' and that tiny change actually increased sign-ups!
Microcopy matters a lot :)
We replaced it with a simple line 'Maybe you don’t have an account yet. Click here to sign up' and that tiny change actually increased sign-ups!
Microcopy matters a lot :)
Startup math is simple:
Reduce pain → reduce churn → increase MRR.
Where’s the friction in your funnel right now?
Reduce pain → reduce churn → increase MRR.
Where’s the friction in your funnel right now?
December 8, 2025 at 5:16 PM
Startup math is simple:
Reduce pain → reduce churn → increase MRR.
Where’s the friction in your funnel right now?
Reduce pain → reduce churn → increase MRR.
Where’s the friction in your funnel right now?
AI evolves fast, but empathy still wins.
Even the best automation performs better when it sounds human.
Tech scales, but connection converts.
Even the best automation performs better when it sounds human.
Tech scales, but connection converts.
December 5, 2025 at 4:31 PM
AI evolves fast, but empathy still wins.
Even the best automation performs better when it sounds human.
Tech scales, but connection converts.
Even the best automation performs better when it sounds human.
Tech scales, but connection converts.
The fastest way to grow is fixing 1 painful problem really well and telling the world 100 times.
What’s the one problem your product solves better than anyone else?
What’s the one problem your product solves better than anyone else?
December 4, 2025 at 6:14 PM
The fastest way to grow is fixing 1 painful problem really well and telling the world 100 times.
What’s the one problem your product solves better than anyone else?
What’s the one problem your product solves better than anyone else?
Your first 10 customers will teach you more than any YC video. Those conversations shape your entire product.
Who was the customer that changed your roadmap?
Who was the customer that changed your roadmap?
December 3, 2025 at 6:35 PM
Your first 10 customers will teach you more than any YC video. Those conversations shape your entire product.
Who was the customer that changed your roadmap?
Who was the customer that changed your roadmap?
Founders don’t burn out from work.
They burn out from working on the wrong thing for too long.
What’s something you stopped doing that instantly reduced burnout?
They burn out from working on the wrong thing for too long.
What’s something you stopped doing that instantly reduced burnout?
December 2, 2025 at 5:07 PM
Founders don’t burn out from work.
They burn out from working on the wrong thing for too long.
What’s something you stopped doing that instantly reduced burnout?
They burn out from working on the wrong thing for too long.
What’s something you stopped doing that instantly reduced burnout?
Every startup has two modes:
'I have no idea what I’m doing'
'This might actually work'
Both are normal.
Which mode are you in right now?
'I have no idea what I’m doing'
'This might actually work'
Both are normal.
Which mode are you in right now?
December 1, 2025 at 8:05 PM
Every startup has two modes:
'I have no idea what I’m doing'
'This might actually work'
Both are normal.
Which mode are you in right now?
'I have no idea what I’m doing'
'This might actually work'
Both are normal.
Which mode are you in right now?
If your welcome email arrives 27 minutes late, it’s not a welcome.
It’s an apology.
How fast is 'fast enough' for you?
It’s an apology.
How fast is 'fast enough' for you?
November 28, 2025 at 5:25 PM
If your welcome email arrives 27 minutes late, it’s not a welcome.
It’s an apology.
How fast is 'fast enough' for you?
It’s an apology.
How fast is 'fast enough' for you?
Email hack:
Want 95%+ inbox placement? Fix the one thing nobody wants to touch: your sending reputation.
What’s stopping most teams from prioritizing this, in your opinion?
Want 95%+ inbox placement? Fix the one thing nobody wants to touch: your sending reputation.
What’s stopping most teams from prioritizing this, in your opinion?
November 27, 2025 at 5:43 PM
Email hack:
Want 95%+ inbox placement? Fix the one thing nobody wants to touch: your sending reputation.
What’s stopping most teams from prioritizing this, in your opinion?
Want 95%+ inbox placement? Fix the one thing nobody wants to touch: your sending reputation.
What’s stopping most teams from prioritizing this, in your opinion?
After 15+ years in Email, I’ve noticed a pattern:
Most deliverability issues start when someone “optimizes” things that never needed optimizing.
Don't fix the things that aren't broken, and focus on defining where issues might actually be through performance measurment and regular audit.
Most deliverability issues start when someone “optimizes” things that never needed optimizing.
Don't fix the things that aren't broken, and focus on defining where issues might actually be through performance measurment and regular audit.
November 26, 2025 at 2:52 PM
After 15+ years in Email, I’ve noticed a pattern:
Most deliverability issues start when someone “optimizes” things that never needed optimizing.
Don't fix the things that aren't broken, and focus on defining where issues might actually be through performance measurment and regular audit.
Most deliverability issues start when someone “optimizes” things that never needed optimizing.
Don't fix the things that aren't broken, and focus on defining where issues might actually be through performance measurment and regular audit.
The best transactional email is still the one that delivers instantly.
Fancy design is optional. Speed is not.
Or would you prefer a good-looking email instead of a timely received one? 🙃
Fancy design is optional. Speed is not.
Or would you prefer a good-looking email instead of a timely received one? 🙃
November 25, 2025 at 4:29 PM
The best transactional email is still the one that delivers instantly.
Fancy design is optional. Speed is not.
Or would you prefer a good-looking email instead of a timely received one? 🙃
Fancy design is optional. Speed is not.
Or would you prefer a good-looking email instead of a timely received one? 🙃
The quickest deliverability win: remove 20% of your list.
That bottom segment is chronically inactive and quietly killing your reputation.
Be honest: when was the last time you cleaned your list? 😏
That bottom segment is chronically inactive and quietly killing your reputation.
Be honest: when was the last time you cleaned your list? 😏
November 24, 2025 at 4:48 PM
The quickest deliverability win: remove 20% of your list.
That bottom segment is chronically inactive and quietly killing your reputation.
Be honest: when was the last time you cleaned your list? 😏
That bottom segment is chronically inactive and quietly killing your reputation.
Be honest: when was the last time you cleaned your list? 😏
Your emails aren’t "mysteriously" going to spam.
You’re just skipping the basics: authentication, warmup, consistency.
When was the last time you found a critical email in your spam folder?
You’re just skipping the basics: authentication, warmup, consistency.
When was the last time you found a critical email in your spam folder?
November 20, 2025 at 4:59 PM
Your emails aren’t "mysteriously" going to spam.
You’re just skipping the basics: authentication, warmup, consistency.
When was the last time you found a critical email in your spam folder?
You’re just skipping the basics: authentication, warmup, consistency.
When was the last time you found a critical email in your spam folder?
Funny how people still say email is dead.
Meanwhile, smart founders quietly sell to customers while paying 10–20 times less than on social media.
Curious who still believes ads beat email in 2025?
Meanwhile, smart founders quietly sell to customers while paying 10–20 times less than on social media.
Curious who still believes ads beat email in 2025?
November 19, 2025 at 5:24 PM
Funny how people still say email is dead.
Meanwhile, smart founders quietly sell to customers while paying 10–20 times less than on social media.
Curious who still believes ads beat email in 2025?
Meanwhile, smart founders quietly sell to customers while paying 10–20 times less than on social media.
Curious who still believes ads beat email in 2025?
Email hack for startup growth:
Users who stop opening transactional emails usually stop paying next.
Deliverability data can predict revenue decline weeks ahead.
Users who stop opening transactional emails usually stop paying next.
Deliverability data can predict revenue decline weeks ahead.
November 18, 2025 at 6:12 PM
Email hack for startup growth:
Users who stop opening transactional emails usually stop paying next.
Deliverability data can predict revenue decline weeks ahead.
Users who stop opening transactional emails usually stop paying next.
Deliverability data can predict revenue decline weeks ahead.
Startups often panic when their emails go to spam and immediately switch ESPs.
Guess what? The bad reputation follows your domain, not your provider.
It’s like changing your car while keeping the same license plate.
Guess what? The bad reputation follows your domain, not your provider.
It’s like changing your car while keeping the same license plate.
November 17, 2025 at 4:57 PM
Startups often panic when their emails go to spam and immediately switch ESPs.
Guess what? The bad reputation follows your domain, not your provider.
It’s like changing your car while keeping the same license plate.
Guess what? The bad reputation follows your domain, not your provider.
It’s like changing your car while keeping the same license plate.
Email hack for your startup growth:
Never use noreply@ for onboarding.
Replies improve domain reputation, and silence kills it.
#email #startup #StartupGrowth #growth #business #SaaS #emailmarketing
Never use noreply@ for onboarding.
Replies improve domain reputation, and silence kills it.
#email #startup #StartupGrowth #growth #business #SaaS #emailmarketing
November 11, 2025 at 4:05 PM
Email hack for your startup growth:
Never use noreply@ for onboarding.
Replies improve domain reputation, and silence kills it.
#email #startup #StartupGrowth #growth #business #SaaS #emailmarketing
Never use noreply@ for onboarding.
Replies improve domain reputation, and silence kills it.
#email #startup #StartupGrowth #growth #business #SaaS #emailmarketing
Startup Growth Hack:
Most brands fail not because CAC is high, but because LTV is too low.
You can’t grow if customers buy once and disappear.
Retention always beats re-acquisition.
#startup #founder #SaaS #GrowthMindset #growthstrategy #StartupGrowth
Most brands fail not because CAC is high, but because LTV is too low.
You can’t grow if customers buy once and disappear.
Retention always beats re-acquisition.
#startup #founder #SaaS #GrowthMindset #growthstrategy #StartupGrowth
November 10, 2025 at 1:45 PM
Startup Growth Hack:
Most brands fail not because CAC is high, but because LTV is too low.
You can’t grow if customers buy once and disappear.
Retention always beats re-acquisition.
#startup #founder #SaaS #GrowthMindset #growthstrategy #StartupGrowth
Most brands fail not because CAC is high, but because LTV is too low.
You can’t grow if customers buy once and disappear.
Retention always beats re-acquisition.
#startup #founder #SaaS #GrowthMindset #growthstrategy #StartupGrowth
Don’t automate chaos.
If your funnel isn’t validated, automation will only speed up the wrong things.
First learn what actually converts, then scale it.
Insight from my interview "How to Build a Scalable E-commerce Tech Stack".
Find more hacks, the link in comments
If your funnel isn’t validated, automation will only speed up the wrong things.
First learn what actually converts, then scale it.
Insight from my interview "How to Build a Scalable E-commerce Tech Stack".
Find more hacks, the link in comments
November 6, 2025 at 4:39 PM
Don’t automate chaos.
If your funnel isn’t validated, automation will only speed up the wrong things.
First learn what actually converts, then scale it.
Insight from my interview "How to Build a Scalable E-commerce Tech Stack".
Find more hacks, the link in comments
If your funnel isn’t validated, automation will only speed up the wrong things.
First learn what actually converts, then scale it.
Insight from my interview "How to Build a Scalable E-commerce Tech Stack".
Find more hacks, the link in comments
#Email #Hacks:
Bounces from old corporate domains (like [email protected]) are churn signals.
Update those users via in-app alerts before they vanish from your reach.
#EmailDeliverability #SaaS #founder
Bounces from old corporate domains (like [email protected]) are churn signals.
Update those users via in-app alerts before they vanish from your reach.
#EmailDeliverability #SaaS #founder
November 5, 2025 at 4:53 PM
#Email #Hacks:
Bounces from old corporate domains (like [email protected]) are churn signals.
Update those users via in-app alerts before they vanish from your reach.
#EmailDeliverability #SaaS #founder
Bounces from old corporate domains (like [email protected]) are churn signals.
Update those users via in-app alerts before they vanish from your reach.
#EmailDeliverability #SaaS #founder
Always test sign-up flow emails on Gmail, Outlook, and iCloud before launch.
You’d be shocked how often one of them silently throttles verification links.
#email #emailmarketing #Gmail #Outlook #emaildeliverability #SaaS #Startups #founder
You’d be shocked how often one of them silently throttles verification links.
#email #emailmarketing #Gmail #Outlook #emaildeliverability #SaaS #Startups #founder
November 3, 2025 at 11:01 AM
Always test sign-up flow emails on Gmail, Outlook, and iCloud before launch.
You’d be shocked how often one of them silently throttles verification links.
#email #emailmarketing #Gmail #Outlook #emaildeliverability #SaaS #Startups #founder
You’d be shocked how often one of them silently throttles verification links.
#email #emailmarketing #Gmail #Outlook #emaildeliverability #SaaS #Startups #founder