free tool
Lifetime deal calculator
Every lifetime deal is the same bet: pay once now instead of monthly forever. This tells you exactly when that bet pays off — and when it doesn't.
Breakeven
2 months
Saved over 36 months
$985
Verdict
Worth it
This deal pays for itself in 2 months. Every month after that is $29 you're not paying. Two honest caveats before you buy: check the refund window (30 days is standard on the good marketplaces), and ask whether the vendor will still exist at your breakeven point — a lifetime deal only lasts the lifetime of the company.
How do I know if a lifetime deal is worth it?
Divide the LTD price by the monthly subscription price it replaces — that's your breakeven in months. If you'll realistically use the tool longer than that (and the vendor looks likely to survive that long), the deal is worth it. A $59 LTD replacing a $29/mo subscription breaks even in ~2 months; a $400 LTD replacing a $9/mo plan takes almost 4 years.
What's the catch with lifetime deals?
"Lifetime" means the lifetime of the product, not yours. The two real risks are the vendor shutting down and the LTD tier being feature-frozen while subscribers get new capabilities. Check the refund window (30 days is standard on reputable marketplaces), read what the LTD tier actually includes, and prefer vendors with an existing track record.
Where do the best AI lifetime deals come from?
AppSumo is the biggest marketplace, but Dealify, DealMirror, and PitchGround run deals AppSumo doesn't carry — often earlier-stage and cheaper. We track all of them and hand-review the ones worth your money at predrop.ai.
The other half of the math
A good breakeven on a bad tool is still a bad purchase. We hands-on review the lifetime deals worth running through this calculator — see the current live deals or the full best AI lifetime deals guide.