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John Viveirosleft a comment
Is anyone using Supabase in education? If so, how? - Grade 9 Business Technology Teacher
How we launch at Supabase
Ant Wilson Read
John Viveirosleft a comment
Hey Product Hunt....I’m JV, co-founder of GainWrk. I built this because a lot of service businesses feel like they’re missing leads, but they don’t know what that costs them each month until they see a number. This free Revenue Calculator takes a few inputs (trade, inbound leads/month, avg job value, % missed) and gives a quick estimate. You can also adjust the assumptions if your business is...
Revenue Calculator (by GainWrk)A free calculator for contractors losing leads
Missed leads = missed jobs. GainWrk’s free Revenue Calculator shows service businesses (plumbers, electricians, HVAC, contractors, realtors, etc.) how much revenue they may be losing from missed leads. Enter your inbound leads/month, average job value, and % missed. Adjust assumptions if you want. Get an instant estimate and a clear “what this costs you” number.
Revenue Calculator (by GainWrk)A free calculator for contractors losing leads
John Viveirosleft a comment
I teach personal finance to Grade 9 students. Any recommendations or ideas on ways to best try this tool with them?
MyLens Stock MarketAI for Stock & Market Analysis
John Viveirosleft a comment
I think once quantum computing gets it's next big breakthrough, that's when we'll see exponential improvement in bio hacking.
How far can AI go, if it already partially helps shrink cancer tumors?
John Viveirosleft a comment
Hey Product Hunt. built Contractor Invoice Generator to make invoicing easier for service professionals. A lot of contractors, electricians, nd handymen don’t need complicated software just to send a clean invoice. They need something fast that works. Our tool lets you create a professional invoice in seconds, add your logo, include line items, calculate tax, and download or print it right...
Contractor Invoice GeneratorProfessional contractor invoices in seconds
Create professional contractor invoices in seconds with no sign-up required. Add your logo, enter line items, calculate tax automatically, and download a PDF or print instantly. Built for contractors, electricians, handymen, and other home service pros. This tool turns messy invoicing into something fast, simple, and professional. This wording matches the main functionality and audience shown on your product page.
Contractor Invoice GeneratorProfessional contractor invoices in seconds
John Viveirosleft a comment
Curious to hear feedback on any requested changes you think would be a great benefit for those looking for a free service. I'm considering adding a QR code option for digital card adoption.
Free Business Card CreatorFree Business Card Creator—no account required
John Viveirosleft a comment
We’re trying the 14-day trial route with our product. We currently have (3) different paid tiers. We look at it this way: does the price paid for the additional feature justify the reward? If the client is paying $20/mo more for our highest tier, how do we justify/sell the additional $20 value. Whats the value prop…
How do you decide what features should be free and what should be paid?
John Viveirosleft a comment
For me it's the following: 1) Does the headline make sense; 2) Is it a topic I'm interested in; 3) Does it look like something I'd use? If the launch looks to complicate or AI generated, I tend not to click lol
What makes you click into a Product Hunt launch?
John Viveirosleft a comment
Congrats on the launch! Any conversion success stories to share? What did the conversion rates look like for clients? Fixed price is a nice differentiator from the token approach.
GojiberryAIAI agents turning high-intent leads into booked demos
Built for contractors and service businesses who just need a clean business card fast! Add logos, change colors, different layout options, etc.
Free Business Card CreatorFree Business Card Creator—no account required
John Viveirosleft a comment
Hey Product Hunt — JV here 👋 We built this because most invoice tools are either bloated, hide the PDF behind an account, or make you jump through hoops. Contractors just want a clean invoice fast so they can get paid. This tool is free and lightweight — you can generate an invoice and download a PDF in minutes (no account/login required). If you try it, I’d love feedback: what fields or...
Free Business Card CreatorFree Business Card Creator—no account required