Our verdict
The Keyto and Perfect Keto are close. We gave the Keyto a slight edge at 9/10 over the Perfect Keto at 8.5/10 — close enough that fit matters more than the score. The most accurate keto tracking tool available—clinically proven and beats messy alternatives for serious dieters.
Our pick

Keyto

Perfect Keto
$44.99
Check priceRead our full reviewSide by side
| Attribute | Keyto | Perfect Keto |
|---|---|---|
| Our rating | 9/10 | 8.5/10 |
| Best for | The most accurate keto tracking tool available—clinically proven and beats messy alternatives for serious dieters. | Best-tasting exogenous ketones with transparent ingredients and fair pricing compared to competitors; 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…
The most accurate keto tracking tool available—clinically proven and beats messy alternatives for serious dieters.
- Simple one-breath measurement with immediate real-time feedback
- 98% of trial users lost weight; clinically 3x more effective than Weight Watchers
Choose the Perfect Keto if…
Best-tasting exogenous ketones with transparent ingredients and fair pricing compared to competitors; skip the protein bars.
- Best-tasting exogenous ketone base (BHB) on the market
- More transparent and better value than competitors like Pruvit
Why we rate them this way
Keyto — 9/10
The most accurate keto tracking tool available—clinically proven and beats messy alternatives for serious dieters.
What we liked: Simple one-breath measurement with immediate real-time feedback, 98% of trial users lost weight; clinically 3x more effective than Weight Watchers, More accurate than urine strips—no color interpretation guesswork, Not messy like urine strips or invasive like blood tests, Backed by over a decade of clinical research.
Perfect Keto — 8.5/10
Best-tasting exogenous ketones with transparent ingredients and fair pricing compared to competitors; skip the protein bars.
What we liked: Best-tasting exogenous ketone base (BHB) on the market, More transparent and better value than competitors like Pruvit, Direct-to-consumer model with no MLM, Wide variety of products (MCT oil, collagen, ketones, bars), Founder is a doctor committed to quality (no added sugars, fillers, artificial ingredients).
Worth knowing: Protein bars don't work well and should be skipped, Exogenous ketones only temporarily boost blood ketones (2-3 hours), not long-term ketosis.
Common questions
Is the Keyto or the Perfect Keto better?
We rated the Keyto 9/10 and the Perfect Keto 8.5/10, so we lean Keyto — but it depends on what you want it for (see "which one is right for you" on the page).
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: The most accurate keto tracking tool available—clinically proven and beats messy alternatives for serious dieters. Perfect Keto: Best-tasting exogenous ketones with transparent ingredients and fair pricing compared to competitors; skip the protein bars.