Software · head to head
Cronometer vs Eight Sleep
The short version
- Only Cronometer has a free tier, so it costs nothing to try first.
- Each has a real cost: Cronometer free tier limited to 7-day report windows; Eight Sleep mandatory monthly subscription ($17-$33) required for core features
- They diverge on capability: Cronometer covers 80+ nutrient tracking, Eight Sleep covers Dynamic temperature control.
Where they differ
Only the attributes on which Cronometer and Eight Sleep actually diverge.
| Attribute | Cronometer | Eight Sleep |
|---|---|---|
| Starting price | Free | $19/month |
| Pricing model | Unknown | subscription |
| Free tier | Yes | No |
| Platforms | Ios, Android, Web | Hardware, iOS, Android |
| Founded | 2011 | 2014 |
Identical on both: user rating (Not yet rated), category (Unknown).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Cronometer
- 80+ nutrient tracking
- Verified food database
- Custom recipes
- Biometric tracking
- Detailed reports
- Fitbit
- Garmin
- Withings
Only in Eight Sleep
- Dynamic temperature control
- Sleep tracking
- HRV monitoring
- Gentle wake alarm
- Dual zone temperature
- WHOOP
- Oura
Both cover
- Apple Health
- Google Fit
- Ios support
- Android support
What people use each for
The jobs each tool is most often brought in to do.
Cronometer
- Workout tracking
- Nutrition management
- Health monitoring
- Fitness coaching
- Wellness improvement
Eight Sleep
- Workout tracking
- Nutrition management
- Health monitoring
- Fitness coaching
- Wellness improvement
Both are used for workout tracking, nutrition management, health monitoring, fitness coaching, wellness improvement, on those jobs the choice comes down to price and fit rather than capability.
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Cronometer
- Free tier limited to 7-day report windows
- Photo and voice logging unavailable in free tier
- Ad-free experience requires Gold subscription
- Advanced features like macro scheduler and recipe importer locked to paid tier
Eight Sleep
- Mandatory monthly subscription ($17-$33) required for core features
- Premium pricing starts at $2,999 for mattress cover alone
- Pod Pro mattress rated as too firm for side sleepers with delicate pressure points
- Edge support weakness with minimal perimeter reinforcement
- Limited to Queen and Full sizes only
Pricing, plan by plan
Cronometer
Free- FreeFree
- Full micronutrient tracking (82+ nutrients)
- Unlimited food logging
- Barcode scanning
- Gold$4.99/month
- All Free features
- Ad-free experience
- Photo and voice logging
Eight Sleep
$19/month- Autopilot$19/month
- Auto temperature
- Sleep reports
- Health insights
Which should you pick?
Choose Cronometer if
- You need 80+ nutrient tracking.
- You want to start without paying.
- You work on Ios, Android, Web.
- You also want verified food database.
Choose Eight Sleep if
- You need dynamic temperature control.
- You work on Hardware, iOS, Android.
- You also want sleep tracking.
Questions people ask
- Is Cronometer or Eight Sleep better?
- Neither clearly leads. Cronometer starts at Free and Eight Sleep at $19/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Cronometer or Eight Sleep?
- Cronometer has a free tier; the other does not. Paid plans start at Free for Cronometer and $19/month for Eight Sleep.
- Does Cronometer or Eight Sleep run on more platforms?
- Cronometer runs on Ios, Android, Web. Eight Sleep runs on Hardware, iOS, Android.
- Can I use Cronometer for free?
- Yes. Cronometer has a free tier, so you can try it without paying. Eight Sleep starts at $19/month.
- What is Cronometer best used for?
- Cronometer is most often used for workout tracking, nutrition management, health monitoring, fitness coaching.
- What can Cronometer do that Eight Sleep cannot?
- Cronometer covers 80+ nutrient tracking, Verified food database, Custom recipes, Biometric tracking. Eight Sleep covers Dynamic temperature control, Sleep tracking, HRV monitoring, Gentle wake alarm. Both handle Apple Health, Google Fit, Ios support, Android support.
Answered from the vendors’ own pages
Cronometer: Is Cronometer truly free and what are its limitations?
Cronometer Free is completely free forever with full micronutrient tracking across 82+ nutrients, unlimited food logging, barcode scanning, custom recipes, and basic reports. The 7-day report window is the main limitation.
SourceEight Sleep: What is the temperature control range of Eight Sleep?
Eight Sleep Pod offers independent temperature adjustment on each side of the bed, with a range of 55 to 110 degrees Fahrenheit. Each side can be controlled separately, allowing couples to have different preferences.
SourceCronometer: What features are included in Cronometer Gold?
Gold ($4.99/month billed annually at $59.99 or $10.99/month) adds photo logging, voice logging with Siri, Crono Coach AI assistant, custom charts, macro scheduler, fasting timer, recipe importer, and unlimited historical data access.
SourceEight Sleep: Is a subscription required for Eight Sleep Pod?
Yes, Eight Sleep Pod requires a mandatory monthly subscription with three tiers ranging from $17 to $33 per month. The subscription includes access to sleep tracking, autopilot features, and other health analytics.
SourceCronometer: Can I log meals with photos in Cronometer?
Photo logging is a premium feature available only in Cronometer Gold, allowing users to snap and automatically log meals through their camera.
SourceEight Sleep: What are the available sizes for Eight Sleep?
Eight Sleep Pod is available only in Full and Queen sizes. Half-size options are not available, which may limit options for smaller beds.
SourceCronometer: Does Cronometer track beyond just macronutrients?
Yes, Cronometer tracks up to 84+ nutrients including vitamins, minerals, antioxidants, and amino acids. All tiers include this comprehensive micronutrient tracking.
SourceEight Sleep: What wearables does Eight Sleep integrate with?
Eight Sleep integrates with 40+ wearables through its Terra API partnership, including Apple Watch, Fitbit, Garmin, Oura, WHOOP, and syncs with Apple Health and Google Fit.
SourceCronometer: Can I see historical data in the free tier?
Free tier reports are limited to the past 7 days. Gold subscription ($4.99/month annually) provides unlimited historical data access for trend analysis.
SourceCronometer: Does Cronometer have professional or pro versions?
Yes, Cronometer Pro is available for healthcare providers, researchers, and educators with specialized features for professional nutrition analysis.
Source