Alternatives
Products that do what Over 1,000 paying customers in the first 3 weeks of Coinkite. does
It's Monday, we are sipping on our coffee bought with Bitcoins, and decided to make an update. * We are very thankful to all of you who support an independent paid business. * Over 1,000 paying customers in the first 3 weeks of Coinkite, and grow as we send invites! * As you know, we reply to email, so keep the feedback coming. * We are sending the invites slowly and growing safely to make sure your coins are safe and always available to you. * the wallet is has been stable and secure. Working on Phones, Tablets and Desktop. * the cards are almost ready, should be arriving in a couple weeks…
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2013 · coinspotting.com
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- 7DS
Hey everyone! We're the folks from Codelitt Incubator. We pay several of our employees either entirely or partially in BTC. This is a huge pain every month when we run payroll. Normally it consists of a wire to Bitstamp (which includes a steep fee), buying the BTC on Bitstamp, sending to our company wallet, collecting receiving addresses, and then paying our employees. Because of this we're building a dead simple BTC Payroll. Our main goal is to make it easy for you to request that your employer pays you in BTC (partially or completely). We don't hold any money nor Bitcoins. It all happens…
2014
- 8AB
A friend(@wolever) and I spent the weekend hacking up a small web app which makes it easy for you to sell digital goods for Bitcoins. Once a customer has clicked the “buy” button, we take care of giving them a unique address, monitoring that address for transactions, then securely notifying your website once a minimum number of confirmations have been received. Oh, ya, and then we send you the Bitcoins :) The website is here: BitWillet: http://www.bitwillet.com and there is a demo on the front page. (full disclosure: BitWillet uses the Willet, http://dev.getwillet.com, platform, of which I…
2011
- 9MF
I know everyone is a bit burned out on blockchain and cryptocurrency related stuff around these parts, but I've been working on as a side project for the last few months and thought you guys might be interested: https://cryptoempire.io/ It's still a bit buggy and incomplete (the mobile ux needs a lot of work, the leaderboard isn't functional yet, etc.), but I've reached a point where I'm not totally ashamed of sharing it :) Any feedback would be most welcome!
2018
- 10IL
Hey Guys, We created Leadmachine after a HUGE pivot on ignite100(UK incubator). We could see the pain of all the other startups wasting money and buying poor leads while struggling to find those early customers. Wouldn't it be cool to have contact details for all websites using Olark or Google analytics while turning over £100,000 in the UK? We can do that with Leadmachine. I'd be happy to answer any questions you may have or listen to feedback!
2012 · leadmachine.io
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Hi there, So a buddy a couple of days ago came up with the idea for a new SaaS product regarding gpt and image generation. We did a quick MVP that barely works, it breaks almost 50% of the time but we still wanted to validate the idea before going all in. We have almost 1k followers on Twitter together. Did a quick post describing the idea with a stripe link in the comments with a 5$ value, no landing page, and no shipped product. In exchange, the buyers become beta users. Around 30 mins later we got our first sale next 30 mins another 5$ and so on. Do we consider the idea validated? The…
2023
- 12PV
Been going for about three years now on the side, learned to code in Rails from Michael Hartl's book, got help from friends and have been getting tons of feedback. I find using Uservoice's idea generation tool was the best along with emailing all customers a few days after they register to get feedback. I also found that a good amount of people will sign up and abandon the site quickly and I'm going to put in a JQ tour to help guide people around the app. Also been testing out Olark to gauge converting users. Anywho, I just launched the latest, responsive Printavo update with has a ton of…
2012
- 13IB
I built this as a Garage Project over the weekend. https://x402.backpac.xyz/ Still working on refining things, but let me know your thoughts. Cheers.
Sep 2025
- 14AB
I am building a simple donation platform where creators can accept tips in crypto — kind of like “Buy Me a Coffee,” but Web3-native. No signups required for supporters. Just share your donation page and anyone can send MATIC, ETH, or any ERC-20 token directly to your wallet. It’s gas-efficient and built on Polygon. Each creator gets a customizable page with a short URL and optional message board. Everything is non-custodial — you own your keys and your funds.
2025 · fundhog.bunnylabs.dev
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When I see what some HN members have done in a weekend on their projects, it makes it hard to confess that it has taken us 1 year to get to this stage. I kept trying to make things perfect, but finally I have seen the light - it will never be perfect and even in its current state, I see so much we need to improve, but it's something. Instead of delaying even more, I thought I would release it to the best critics out there - HN say hello to MyProperty.com Hope to hear your feedback, criticism, thoughts.
2011
- 16CD
We've set up DeekSeek R1 with a system prompt that attempts to censor the word PRIVATEKEY from its response. If you can get DeepSeek R1 to output that string (not in the reasoning, but in the final response), the system will reveal a private key which contains $1000 USDC. You will have a 50 token limit in the input. We will have a series of contests, sponsored by AI researchers, in order to learn more about prompt engineering and how LLMs interact with real money. Good luck! Edit: The money was claimed! Thanks for playing all. You can still play for fun. Stay tuned for the next one! Stats:…
2025 · deepbounty.ai
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We built this using investor tools. I really wanted to know which startups to work for. Are we on the right track? PS - there's a paywall but if you want to explore more, just DM me your email and I'll give you free access in our db!
2023 · usemassive.com
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I founded the first blockchain certificate of deposit. I'm surprised that it became so popular so fast, I hope it doesn't cryptokitties the network. The marketing looks like a scam. Code (audited 2x): https://etherscan.io/address/0x2b591e99afe9f32eaa6214f7b7629768c40eeb39#code Ethereum top list: https://etherscan.io/topstat#Transaction I'm always available at http://t.me/RichardHeart
2019
- 19FR
Hey HN! We're launching Founderpath today to help saas founders raise cash without diluting their company Instead of a merchant cash advance needing to be paid back within 6-12 months, our standard deal is 15% interest, 4 year payback, $200k check We get no equity, no warrants, no weird covenants, and don't require personal guarantees This cash is way cheaper than if you were to raise from a VC (normally diluting your equity pool by 20%+ and losing a lot of control via a board seat and veto powers) We're around all day today showing demos & answering questions over at…
2020
- 20IC
Show HN: I crafted the simplest way to Gift Bitcoin this Christmas The link is: www.spreadthecoin.com For the past two weeks, I have been building a Bitcoin Christmas(/Happy Holidays) Card company --> and it has just launched (today) at www.spreadthecoin.com . The "Certificate" makes it easy for Bitcoiners to give their friends and family their first Bitcoin (with suggestions on how to spend/use it)! It is meant to play-well with home-printers and can suffice as a last-minute gift idea. I think that Christmas morning/Hanukkah is an excellent opportunity to gift coins to…
2013
- 21BA
We've applied to this intake of YC. We're a streamlined product which allows people to connect a coinbase account (or another payment method) and visit all their favourite online stores and checkout with one click and pay by bitcoins. Regardless of whether or not the merchant accepts bitcoins. Works on Amazon/Best Buy/Anything... Would appreciate the feedback! www.joinsnapcard.com
2013
- 22SS
hey hey! I'm the co-founder of squads -- a product that makes it easy to see what your friends and top investors are doing in web3. This product was developed out my own frustration trying to get more involved in web3. One of the greatest challenges in the crypto space is figuring out where to start. For some of us, we're lucky to have a friend who can serve as a guide, and we wanted to build a product that would make introducing your friends to crypto a more inviting experience. There is so much alpha and information living on Twitter + Discord, but the problem is finding the signal from…
2022 · beta.squads.xyz
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Happy to share the last week growth of https://vulert.com https://twitter.com/DevNackOfficial/status/1490993623026270214 Vulert notifies you if a security issue is found in any of the open-source software you use. Feedback or critics are welcome. Feel free to ask anything: info(@) vulert.com
2022
- 24WA
Hi I'm Akina from Japan and we develop new SNS named bajji(badge). bajji will visualize reliable relationships. You can connect only with person actually you've met by using our app. And only those who met in person with you can give your assessment to you.By using blockchain, data could be fair to anyone. It keeps service reliability. 1,000 users in Japan and we are trying to expand this service to worldwide as a next step. bajji will solve digital rights on social web. Could you feedback about service for me? Here is my invite URL. If you register from this URL, you and I will get some…
2019
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