Calorie Tracker Guide · 2026-11-14
Verdict
Death Clock: The Life Lab prices as Free · 10 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Death Clock: The Life Lab is marked for Coach connection. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Barcode scanner, Macro tracking. Death Clock: The Life Lab is not. Editorial scores are 6.2 for Death Clock: The Life Lab and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Death Clock: The Life Lab: Free · 10 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Features that differ
Barcode scanner: only Senza: Keto & Fasting is marked available.
Macro tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Coach connection: only Death Clock: The Life Lab is marked available. Mentioned in the App Store description.
Fit
Death Clock: The Life Lab has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: Death Clock: The Life Lab 3.8, Senza: Keto & Fasting 10. Death Clock: The Life Lab: 10 - annualised price $99.99/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Feature depth: Death Clock: The Life Lab 3.8, Senza: Keto & Fasting 2.3. Death Clock: The Life Lab: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10. Senza: Keto & Fasting: Quality-weighted share of tracked features available (excellent 1.0 .. poor 0.2), x1.6, capped at 10.
User feedback: Death Clock: The Life Lab 7.8, Senza: Keto & Fasting 9. Death Clock: The Life Lab: Bayesian rating 4.62 (iOS 4.79x18113 + Play 3.99x4665, prior 4.3x200) + review stars sentiment -0.45 over 20 reviews. Senza: Keto & Fasting: Bayesian rating 4.72 (iOS 4.78x10816 + Play 4.44x1907, prior 4.3x200) + review stars sentiment +0.45 over 20 reviews.
Maintenance: Death Clock: The Life Lab 9.5, Senza: Keto & Fasting 1.7. Death Clock: The Life Lab: Last release 0 days ago (half-life 90d, 70%) + median 6 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Death Clock: The Life Lab 7.3, Senza: Keto & Fasting 6.8. Death Clock: The Life Lab: log10 of 22778 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Coachability: Death Clock: The Life Lab 5.5, Senza: Keto & Fasting 0. Death Clock: The Life Lab: Best quality of aiCoach / coachConnection features. Senza: Keto & Fasting: Best quality of aiCoach / coachConnection features.
Who should pick which
Choose Death Clock: The Life Lab if you need Coach connection. Choose Senza: Keto & Fasting if you need Barcode scanner and Macro tracking.