Yurii Rebryk
@yrebryk
Followers
9K
Following
2K
Media
258
Statuses
2K
Founder of Fluently (YC W24) | Improve your English with AI at https://t.co/VlmIgrX51J
Joined June 2011
Get rejected. Get rejected. Get rejected. Get rejected. Get rejected. Get a reply. Get rejected. Had a call. Get rejected. Get an interview. Get rejected. Get an interview. Get rejected. Get an interview. Accepted into YCombinator. Raised $2.5M at Seed round. That’s how.
299
464
7K
I can’t believe that: . - Y Combinator startup school is free .- Paul Graham essays are free .- Harvard coding/AI courses are free .- Figma is free .- ProductHunt is free .- Python is free .- Andrej Karpathy is free .- ChatGPT is free . Today, anyone can build a startup, get
172
343
4K
I am a YC founder and I raised $2.5M. But here’s the reality:. - I have the salary of a junior coder in SF.- I share a 2BD apartment with a friend to pay less.- I pay for health insurance myself.- I don't have a fancy office with a city view.- I don't have a car. Raising money
380
170
3K
Best subreddits for Founders: . r/SaaS.r/startups.r/business.r/MicroSaas.r/SideProject.r/indiehackers.r/ycombinator.r/Entrepreneur.r/smallbusiness.r/Business_Ideas.r/RoastMyStartup.r/growmybusiness.r/AlphaandBetaUsers.r/EntrepreneurRideAlong. What did I miss?.
64
237
3K
Huge personal news! My EB-1A visa for Extraordinary Ability was APPROVED! 🇺🇸. @ycombinator has changed my life!
129
39
2K
2015: Failed to get an internship abroad.2016: Applied a second time, and also failed.2017: Tried harder again, but still failed.2018: Finally became an intern at @Google NYC.2019/20: Got 5 full-time offers. COVID hit and the offer was canceled. 2020: Started a deep tech startup
96
76
1K
FINALLY received my EB-1A Green Card for Extraordinary Ability 🇺🇸 🦅. After 6 years since my first visit and $20k+ in legal fees, I can freely travel around the world and build my startup in the US. Thanks @ycombinator, LFG!! 🥳
136
22
1K
Gen Z freelancer charged me 2,000$ for the marketing video. After 1 month of silence, he sent me this: . Am I getting old?
260
24
1K
I'm a founder. I do sales.I do design.I do coding.I do support.I do marketing.I do team hiring.I do accounting.I do user research. Being a founder is not about giving interviews, raising money, and telling the team what to do. It is about solving problems—whether it’s for the
75
49
983
Who needs a fancy office when your home desk setup feels this good?
162
20
881
Application tips which helped @fluently_app get accepted at @ycombinator (W24) and raise over $2.5M👇
37
30
733
Fluently just hit $1M ARR 🎉. 5 months ago, we were at $48K. That’s 20x growth since January 2025. Hard to imagine where we’ll be by the end of the year!!
82
10
596
At 17, I was rejected for a Google internship. At 18, I was rejected for internships at Google and Facebook again. At 20, I was rejected by many big tech companies. At 24, I was rejected twice by my dream accelerator Y Combinator. At 25, I was rejected by 19 other startup
47
14
456
Pre-seed is tough. No users, no revenue, just an idea and a deck. These 18 startup programs can help founders to build from zero:. 1.) @southpkcommons , US.2.)@ycombinator, US.3.) @HF0Residency, US.4.) @seedcamp , Europe.5.) Arc by @sequoia, US / Europe 🧵
24
32
439
Top 5 things to do in your 20s. 1. learn coding.2. travel.3. build a startup.4. get into YC.5. make a $500M exit.
51
26
410
I'm a founder, here is a short list of jobs I do at my startup: . - Head of Engineering.- Head of Sales.- Head of Product.- Head of Marketing.- Head of HR.- Head of Legal.- Head of Content.- UI/UX designer.- Customer Support.- Public Relations .- CFO. Early-stage founders aren't.
60
19
309
This coffee line in SF is getting out of control. Every day it is growing 😱
67
1
300
Just launched Fluently (YC W24) on @ycombinator 🚀 . Fluently is an app that helps non-native professionals improve their English with instant feedback after each Zoom call. Imagine having a personal coach, always listening and providing tips. Happy to have @t_blom as our group
29
17
238
Hell yeah, my Green Card will be ready soon!. Finally, I will be able to travel, work and build my startup legally 🥳
36
2
210
Biggest lesson on fundraising:. It’s a numbers game. Nine months ago, I applied to 20 accelerators and only 1 succeeded — that was @ycombinator. The key? More attempts = better chances. So keep pushing even if you have dozens of "No" in a row.
13
9
209
Would you pay for an app if you knew 99% of its code was made by AI?.
216
12
205
An early-stage founder has 3 jobs:. - Constantly talk to users.- Build the product they really need.- Make sales. Master just these 3, and you'll be ahead of 98% of startups.
26
7
156
Over the past year, I reviewed 100+ Y Combinator applications from founders, spotting the same common mistakes. It took me 3 tries to get into YC with @fluently_app.because I made these errors too. So, I made a Y Combinator application guide 🤟. This guide is based on my
10
9
150
6 books that shaped me as a startup founder. If you're an early-stage founder or planning a startup, check them out!. Thread:
7
48
148
The founder of Amazon had no experience in e-commerce. The founder of Tesla had no experience in cars. The founders of Instagram had no experience in social media. The founders of Airbnb had no experience in travel. The founders of Stripe had no experience in payments. I had.
16
9
126
We were so tired of copy-pasting text to so we fixed that. ChatGPT can now be easily accessed on any website via Cmd + J. Enjoy!. It was a pleasure to work on it with @daniel_dhawan and @jackqack 🙏🏻. Links and usage examples below👇
10
10
119
Founders, what’s the most valuable subscription you pay for?.
156
3
121
I gathered the best resources for early-stage founders. They helped me a lot to get into YC and raise $2.5M . A thread:.
10
9
117
I finished @ycombinator 6+ months ago, but these lessons will live forever:. 1) Launch early - I've got first 30 customers for @fluently_app, without even having a website or a fully ready MVP. 2) Money is the best signal that you're building something people truly want. Charge
10
3
108
🚩 Red flags of startup founder in 2025:. - Over 25 years old.- Doesn’t build AI agents.- Hasn’t applied to the YC yet.- Doesn’t tweet about SpaceX launches.- Never heard about 'Founders mode'.- Wasn’t stuck at Burning man last year.- Doesn’t use 'disrupt', 'AGI', '10x' in his.
37
6
103
Unpopular opinion: the best developers don’t work at companies like Google, Amazon, Apple, or Netflix. In fact, many of the most talented developers are quietly building startups or working at smaller teams you’ve never heard of. yet. Here’s why: at big tech companies, coders.
7
11
94
Are you applying to @ycombinator Fall batch?. Repost this tweet and I’ll review your application to help boost your chances. At @fluently_app, we were part of the W24 batch, and I applied twice before getting in. So I can provide valuable feedback for you for free. Offer valid.
5
31
85
You're not a Founder until you have…. ☑ Sent 1,000 cold emails.☑ Spent a week designing company logo.☑ Been told: "Nobody needs your product".☑ Made a free pilot for a corporate client .☑ Spoke with 100 of your users.☑ Failed a fundraising round.☑ Mom suggested you "find.
19
5
81
15 founders to follow on X (bootstrapped & VC-backed) 👇. These guys raised $1B+ and make $200M+ ARR combined:. 1) @johnrushx: SaaS & directory entrepreneur.2) @antonosika: founder of fastest growing startup in Europe (Lovable).3) @levelsio: serial founder with 50+ launched.
9
14
76
Top 5 accelerators to apply to right now with early-stage startup 👇
6
1
75
what first time founders think they need:. · pitch deck.· mission.· financial model.· delaware LLC.· venture capital.· cool domain.· fancy website.· unique logo.· twitter pro. what they actually need:. · talk to users daily.· build the product, then iterate.· make sales. Focus on.
9
6
71
Looking for a $1B startup idea? . Y Combinator just shared 9 ideas they're excited to invest in: 🧵.
4
5
65
Didn't get into YC? . Here are other great 7 accelerators to apply to right now 👇.
7
0
65
Finally, we launched the Fluently mobile app!. The first AI tutor designed to help non-natives who already know English start speaking better:
11
3
72
Exciting news! Today we launch @suggesty_ai, an AI keyboard for iOS. Now you can fix your grammar and get message drafts in seconds. Of course, it's powered by GPT-3. Would you like to try? Like & RT!
14
17
58
2024 recap for Fluently:. - Finished YC W24 batch .- Raised $2.5M.- 12,000 hours of English calls analyzed.- 20,000,000+ organic views on social media .- 144,000+ website visitors with 0$ paid marketing.- Launched MacOS / iOS / web apps . The goal for 2025: 100x revenue growth.
12
2
66
Twitter can easy make you feel like:.“I’m not good enough” . • 19-year-old engineers making $15,000/month.• 22-year-old founders with $10M rounds.• 27-year-old solopreneurs earning millions. It’s easy to feel like you’re falling behind. Hovewer, success doesn’t have an.
4
5
62
For the last 5 years, I've launched 3 startups, raised $4M and got into YC. Here is a list of resources I wished to have from day 0. It covers: idea stage, product development, fundraising, growth and sales. If you are an early-stage founder, check it out👇.(in the comments)
5
7
62
I'm still using pen and paper a lot, even to write code. Am I the only one?
14
2
61
The brutal truth about raising VC money:. - Weekends stop being weekends.- You'll work harder than at any job.- Constant stress of running out of money.- The next 5-10 years of your life are locked.- You’d probably make more money in Big Tech.- Saying 'no' to family events.
10
3
61
Based founder:. - code and make sales personally.- talk to users daily.- proud of product metrics, not fundraising numbers.- skip hackathons on the weekends.- ships fast, even with bugs, to iterate quicker. - shitposts on Twitter sometimes. What did I miss?.
12
1
61
6️⃣ Iterview:. - Be concise and clear in your answers.- Know your product, users and metrics.- Don't over-prepare or memorize answers. YC Interview Guide: List of over 50 Y Combinator applications:
2
0
60
Big lesson for anybody building a startup: . Everything takes more time than you think, costs more than you expect, and works worse than you hoped. Experience doesn't help to avoid this—it only helps you handle the challenges better. So learn to adapt and keep building, no.
8
3
59
We're looking for a senior Full-Stack developer to join Fluently. • React Native, Expo, Supabase, TypeScript.• Node.js, Nest.js, REST, Docker, AWS.• Competitive salary + stock option.• Fully remote . Email me at yrebryk@getfluently.app . Repost to get $10k referral bonus 💸.
11
8
56
It has been almost a year since I’ve moved to sf. smart people. sunny weather. beautiful nature. - very expensive.- too many drug addicts. any other reasons to stay or leave?
10
0
59
Most common startup lies 👇 . 1) "We grew 300% last month." → we had 3 users, now we have 12 . 2) "Our ARR is $100K" → we generated $8,500 in sales last month by offering crazy discounts. 3) "We built a revolutionary AI app." → we connected OpenAI API to the our UI . 4) "We’re.
13
2
58
In your 20s as a software developer? . Here's what I wish I knew:. - Try different places: startups, big tech, work abroad. - Keep multiple job offers on hand. Makes salary talks way easier. - Pick your team over salary early on. - Good mentors are worth more than a fat.
13
2
53
Y Combinator just revealed their request for startups (Summer, 2025) . Here's what YC is ACTUALLY looking to fund right now:
6
5
60
Being a startup founder is easy. You just have to find a great idea. And make sure it’s a problem worth solving. And validate it before you waste time building. And build it before you run out of time validating. And figure out your target audience. And convince them to care.
8
4
54
It’s cool to get into Y Combinator and raise millions of $. But for startup founders it’s cooler to:. - Solve problems people struggle with. - Have paying customers and great retention. - Build a product that you love. - Work with people you admire. - Achieve profitability. -.
9
3
51
Our first video went viral on TikTok and hit 800k views yesterday. App installs are going wild!. Very soon a lot more people will speak English better 😄
14
2
54
My top 10 accelerators for super early-stage startups👇. At Fluently we were accepted to @ycombinator. But beyond YC, there are plenty of amazing options:. 1. @500GlobalVC | Pre-Seed, $150k for 6%. 2. @join_ef | No team, $250k for ~9%. 3. @southpkcommons | Pre-Idea, $1M. 4.
5
5
53
Being a coder is wild. One minute you’re ready to give up and retire early after being stuck on a bug for days. Then you fix it with a one-line change and feel like you on top of the world 🫠.
9
2
51
I have decided to democratize access to the Profanity vulnerability 💪🏻. Link to the GitHub repo👇.I would appreciate if you star it⭐️.
If you have a vanity address generated with Profanity, you definitely need to transfer your funds. I hacked @jackqack’s wallet in 26 minutes on my Macbook Pro M1 with 16GB of memory. This is how I did it:
2
7
48
How to answer Y Combinator application questions?. Here are 9 tips that helped @fluently_app get into @ycombinator (W24) and raise over $2.5M. These insights come from my review of 100+ YC applications and are approved by other YC alumni and partners. Check them out before.
5
1
49
i was always surprised how large the lag between a closed round and its announcement often is. and here we are!.
12
0
46
My founder’s skill tree:. 1) Sales. 2) Design. 3) Coding. 4) Fundraising. 5) Storytelling. 6) Data analysis. 7) Market research. 8) Funnel optimisation. 9) Team hiring / management. 10) Marketing and product strategy. If you want to be a great founder, you’ve got to be flexible.
6
0
45
My 2024 wrapped up:. 2024 changed everything. After countless rejections and failures, it finally feels like the effort paid off. Here are some of the best highlights:. > Got into Y Combinator (3rd time's a charm!).> Moved to San Francisco.> Raised $2.5M for @fluently_app .>
8
0
47
We’re the #1 Product of the Day 🥳. Huge thanks to all of you who supported our launch 💙. In just two days, we got:. • 993 upvotes. • 6,100+ website visits. • 3,000+ onboarding starts. • 380+ trials . If this were paid traffic, it would’ve cost us at least $10,000. PH is
10
1
47
As a founder, I’ve developed an annoying attention to detail:. - I spot 1,000 bugs.- I see every typo.- I notice if someone is even 1 minute late.- I remember every promise and task . It’s not micromanagement. I do it because otherwise, the startup will die.
10
2
45
10 startup lies👇 . 1) "We grew 300% last month" → We had 2 users, now we have 8. 2) "Our ARR is $100K" → We generated $8,000 in sales last month by offering crazy discounts . 3) "We built a revolutionary AI technology." → We use Open AI API . 4) "Our customer feedback.
8
2
41
Day in the life of a YC founder:. - 9 am start working.- ready to build that cool new feature today.- oh let's review support tickets first.- ok, there is a bug that needs immediate fixing.- that took longer than expected.- 2 pm a good time for a gym break.- good, now I can code.
11
1
41
If you: . - speak with your users weekly.- have positive unit economics .- use your own product regularly .- sleep 8 hours per night .- do 6 hours of deep work daily .- personally handle sales or coding .- have at least 10 users who admire your product. you’re ahead of 97% of.
6
2
42
I've collected 32 lading pages of the fast-growing YC startups which raised over $1.5B 🔥 . Use them as inspiration to boost your website's Conversion Rate and improve ROAS. After optimizing the landing page at @fluently_app, we increased our conversion rate from 15% to 24% and
28
11
42
I still can’t believe that:. - Python is free.- ArXiv papers are free.- Jupyter Notebooks are free.- Stanford CS lectures are free.- Hugging Face models are free.- TensorFlow and PyTorch are free.- ChatGPT Plus for Students is free.- Andrej Karpathy and Yannic Kilcher content is.
5
0
42
oh boy, it took a while, but finally, we’ve finally released a new version of Fluently - your personal speaking coach. what's new?
4
17
39
YouTube is a free university for startup founders. These 11 channels taught me more than any startup accelerator!. They were a huge help in raising $2.5M for Fluently (an AI English-speaking coach) 👇
7
8
51
I’ve collected 21+ Y Combinator startups' landing pages with crazy Conversion Rates👇🏻. By analyzing these pages, we increased @fluently_app website CR from 15% to 24% and reduced our CAC by 40%
5
3
39
2️⃣ Top 3 application mistakes which founders make:. - Undersell their team and domain expertise. - Don’t have concise answers (too much fluff and buzz words). - Don’t provide bottom up market size calculation.
2
0
38
Our startup got into @ycombinator W24, and it's probably the best thing that has happened to me so far in recent years. Many, many incredible people around. That's awesome!.
8
2
37
"You’re a founder, why spend so much time on social media?". Here’s what 4 months of consistent posting did for me and @fluently_app:. - 14,020,000 content views .- 75,000 website visitors.- 18,000 people decided to try the app.- 60+ people shared their feedback.- 10+ invites to
6
0
35
If you want to raise first money for your startup in 2025, all you need is:. • 2+ yrs of traction w consistent 30% MoM growth.• 4+ yrs of mastering buzzwords like "GenAI" and "Disruption”.• 6+ yrs of predicting trends before Marc Andreessen tweets them.• Be an OpenAI.
8
3
35
1️⃣ YC application process looks like this:. 1. Submit Application.2. 10-minute inteview | 5-7%.3. Congratulations if you are accepted | < 1%
2
0
34
On Monday, my LinkedIn post went viral🚀 Here are some stats:. - 1,204,408 views.- 9,299 visits to the Fluently website. What do you think of these numbers? Seems like a good platform to get organic traffic
8
3
34