Commerce · alternatives · 2026
24 alternatives to Built in a Day - Helping Bid2Let Test Auction Pricing for Apartments in the UK
Discovering Tomorrows Startups One Test At A Time
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites. Built in a Day - Helping Bid2Let Test Auction Pricing for Apartments in the UK launched in 2016; newer entries below may have overtaken it.
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Rapidly testing startup ideas
2016 · its alternatives →
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Build Check▲493Is your app idea actually worth building?
Apr 2026 · build-check.com · its alternatives →
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- 6RD
I created https://www.howmuchrent.com last Friday to help bring this kind of transparency to Ireland, allowing people to submit their rents. Would love to get any HN feedback on the idea/website.
2023 · howmuchrent.com · its alternatives →
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- 8BB
Looking for feedback on my newest project, BidOnMyDay: http://bidonmyday.com I came up with this idea a few weeks ago when JetBlue reopened sales of their BluePass. You bid to have my fly to you, using my BluePass, and do whatever work you need done. I'm a web developer but I'm willing to do almost anything. Bids start at $1. To add additional value I'm doing a video and blog post of each job, with do-follow backlinks. http://bidonmyday.com
2011 · bidonmyday.com · its alternatives →
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Test your business idea before you build. Market validation with real data on competitors, demand, and viability from 60+ live sources. Free 60-second scan.
Feb 2026 · preuve.ai · its alternatives →
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Find out what your market wants before you waste months
Aug 2026 · shouldbuild.io · its alternatives →
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1000+ Places To Promote Your Startup
2022 · agarwaravi.gumroad.com · its alternatives →
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Know if your app idea will sell — before you build it.
Jun 2026 · demandproof.app · its alternatives →
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FoundersWall▲35I used to be just a blogger. Now I build internet products, still without code, using AI, design, and taste. I was building in public on X for last 2 months. And honestly, I got tired of how it became performative and started to feel fake. I shipped 2 products. Both failed to get any real traction. I kept sneaking into popular builders’ profiles, hoping to learn how they do it. One thing I kept seeing everywhere, product launch directories. I thought here is the scope. So I started building one. Same UI like the rest. Nothing special. Suddenly one day when it was half built, I realized…
2025 · founderswall.com · its alternatives →
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BuildForWho▲10Validate demand by finding buyers, not opinions
Feb 2026 · shorturl.at · its alternatives →
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- 20WT
Backstory: Few years back, I used a shared spreadsheet (GSheets) to organize my property hunt, and found it quite frustrating to keep on top of things just on the productivity side alone. Felt that there should be a better way to do this, and that's when I started creating a webapp, with features that can make this journey feel less stressful. This is a solo dev project. Have a look at the demo, and let me know your thoughts! Cheers
2025 · dash.collabnest.app · its alternatives →
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- 22LS
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 · its alternatives →
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LANDLORDS.lol: own a square of the boardfrom $1/mo▲3outbid.lol but for monopoly
Aug 2026 · landlords.lol · its alternatives →
- 24HC
Hey HN! We’re Thomas and Andrew, and we just built a Dutch auction exchange for cloud H100 rentals. It’s live at https://www.H100cloud.com. Auctions traditionally start at a base price and work their way up. That doesn’t work for cloud computing — would you ever want to be outbid and lose your data? Our Dutch auction model starts at a ceiling — $3.50/hr per H100. We lower prices every six hours until servers are picked up by buyers. We stop lowering them when prices reach a $2.20 floor. When you rent a server, the price is locked until you delete the server. You’ll never get…
2024 · h100cloud.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →