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Fiverr Pro
English
$
USD
I will build a custom calculator or quote tool as a single HTML file
Tracklyapp
About this gig
I build custom calculators that live in one single HTML file.
Price calculators, quote estimators, ROI tools, cost breakdowns, unit converters anything where someone enters numbers and needs an answer straight away.
No server, no database, no monthly fees. You get one file that works on your website, on your laptop, or offline on a phone.
What you can order:
- Pricing and quote calculators for your services
- Cost or profit calculators for your business
- ROI, savings and loan calculators
- Material, area or unit estimators
- Multi-step forms that produce a result
Every calculator includes:
- One clean HTML file yours to keep and modify
- Works offline, no installation
- Mobile responsive
- Your colours and logo
- Easy to embed on any website
I've been building and selling digital products for 4 years, with 4,000+ orders delivered so you get something that works without a manual.
Not sure what's possible? Message me with your formula or a rough idea and I'll tell you honestly what it will take no obligation.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Tracklyapp
Tracklyapp
Single file web apps: trackers, calculators, dashboards
- FromRomania
- Member sinceJan 2020
- Avg. response time8 hours
Languages
Romanian, English
I build complete web apps that live in a single HTML file. No server, no account — open the file and it works, offline.
Recent builds: a garden planner with 20+ tracking sections and companion-planting warnings, a budget app with recurring transactions and auto-backup, a car maintenance tracker.
Every build ships with a user manual, and an activation-code system if you want to sell it.
4 years and 4,000+ orders selling digital products.
Message me with your idea and I'll tell you honestly if it's a good fit.
My Portfolio
FAQ
Can I put this on my website?
Yes. It's one file — you can upload it, link to it, or embed it with an iframe. Works with WordPress, Shopify, Wix or plain HTML.
Do I need to know the exact formula?
Ideally yes. But if you describe how you price or calculate things, I'll work the logic out with you before I start building.
Can it email or store results?
It can save and export results on the user's device. Sending emails or storing data on a server needs a backend, which is outside this service.
Can I edit it myself later?
Yes. It's plain HTML, CSS and JavaScript with comments, no frameworks or build tools. Anyone who knows basic web code can change it.
What if my calculation is very complex?
Message me first with the logic. If it's beyond what a browser can handle cleanly, I'll tell you upfront instead of taking the order.
