Our verdict
The Keyto and the Perfect Keto are too close to call — we rated both 8.5/10. There's no clear winner here, so it comes down to what you want it for. We break that down below.
Keyto
Perfect Keto
$44.99
Check priceRead our full reviewSide by side
| Attribute | Keyto | Perfect Keto |
|---|---|---|
| Our rating | 8.5/10 | 8.5/10 |
| Best for | If you're serious about keto, this is the honest feedback tool you're missing—accurately tracks ketosis with one simple breath. | Best-tasting exogenous ketone base on the market—just skip the protein bars. |
| Standouts |
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| Watch-outs | None we flagged |
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Which one is right for you?
Choose the Keyto if…
If you're serious about keto, this is the honest feedback tool you're missing—accurately tracks ketosis with one simple breath.
- One-breath ketosis measurement (no blood tests or messy pee strips)
- Clinically proven 3x more effective than Weight Watchers
Choose the Perfect Keto if…
Best-tasting exogenous ketone base on the market—just skip the protein bars.
- Best-tasting BHB exogenous ketone product they've tested
- More transparent and cost-efficient than Pruvit's KETO//OS
Why we rate them this way
Keyto — 8.5/10
If you're serious about keto, this is the honest feedback tool you're missing—accurately tracks ketosis with one simple breath.
What we liked: One-breath ketosis measurement (no blood tests or messy pee strips), Clinically proven 3x more effective than Weight Watchers, 98% of trial users lost weight, Sensitive enough to catch even small diet deviations (e.g., a few jelly beans), Simple one-button operation with clear app-based feedback.
Perfect Keto — 8.5/10
Best-tasting exogenous ketone base on the market—just skip the protein bars.
What we liked: Best-tasting BHB exogenous ketone product they've tested, More transparent and cost-efficient than Pruvit's KETO//OS, Founder is a doctor, committed to clean ingredients (no additives, fillers, gluten, soy), Direct-to-consumer, no MLM—can buy all products in one place, Wide product range (MCT oil, collagen, ketone base, bars).
Worth knowing: Protein bars are poor quality and not recommended.
Common questions
Is the Keyto or the Perfect Keto better?
We rated both 8.5/10 — it's a genuine toss-up. Keyto: If you're serious about keto, this is the honest feedback tool you're missing—accurately tracks ketosis with one simple breath. Perfect Keto: Best-tasting exogenous ketone base on the market—just skip the protein bars.
How much do the Keyto and Perfect Keto cost?
The Perfect Keto is listed at $44.99. We don't have a current price on file for the Keyto — check the latest on its review page.
What's the difference between the Keyto and the Perfect Keto?
Short version — Keyto: If you're serious about keto, this is the honest feedback tool you're missing—accurately tracks ketosis with one simple breath. Perfect Keto: Best-tasting exogenous ketone base on the market—just skip the protein bars.