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SONEKI
Break-even calculator for cars, homes, insurance & more
SONEKI helps you make smarter financial decisions by calculating break-even points for major life expenses. Stop guessing — know exactly when buying a car beats car-sharing, when buying a home beats renting, or when an annual subscription pays off. - 6 calculators: Car, Housing, Insurance, Subscriptions, Appliances, Consumables - No personal info required - All data stays on your device - 7-day free trial · $2.99/month
Hi Product Hunt! I'm Kenta, the maker of SONEKI.
I built this because I kept making big financial decisions (car, apartment, insurance) based on gut feeling rather than actual numbers. There was no simple tool that could tell me "at what point does buying a car beat car-sharing for MY situation?"
So I built SONEKI — 6 calculators that help you find the break-even point for your biggest expenses:
- Car: Own vs. car-sharing
- Housing: Buy vs. rent
- Insurance: Premiums vs. paying out-of-pocket
- Subscriptions: Monthly vs. annual plans
- Appliances: Keep vs. replace (energy savings)
- Consumables: Bulk buy vs. single purchase timing
No account needed, no data leaves your device. Just clear numbers to help you decide.
Would love your feedback on what other calculators would be useful!
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About SONEKI on Product Hunt
“Break-even calculator for cars, homes, insurance & more”
SONEKI was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #150 on the daily leaderboard. SONEKI helps you make smarter financial decisions by calculating break-even points for major life expenses. Stop guessing — know exactly when buying a car beats car-sharing, when buying a home beats renting, or when an annual subscription pays off. - 6 calculators: Car, Housing, Insurance, Subscriptions, Appliances, Consumables - No personal info required - All data stays on your device - 7-day free trial · $2.99/month
SONEKI was featured in Productivity (653.9k followers) and Personal Finance (2.8k followers) on Product Hunt. Together, these topics include over 143.4k products, making this a competitive space to launch in.
Who hunted SONEKI?
SONEKI was hunted by Kenta Taguchi. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how SONEKI stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Kenta Taguchi