Calorie Tracker Guide · 2026-11-14
Verdict
Microgram: Nutrient Tracker prices as Free · 8 in-app purchase option(s). Senza: Keto & Fasting prices as Free. Microgram: Nutrient Tracker is marked for Photo logging, Audio logging, Text logging. Senza: Keto & Fasting is not. Senza: Keto & Fasting is marked for Apple Health, Workout tracking, Fasting. Microgram: Nutrient Tracker is not. Editorial scores are 5.1 for Microgram: Nutrient Tracker and 5.2 for Senza: Keto & Fasting, on a 10-point scale. That score is not the store rating.
Price
Microgram: Nutrient Tracker: Free · 8 in-app purchase option(s).
Senza: Keto & Fasting: Free.
Monthly figure: Microgram: Nutrient Tracker $19.99, Senza: Keto & Fasting unknown.
Yearly figure: Microgram: Nutrient Tracker $71.9, Senza: Keto & Fasting unknown.
Features that differ
Photo logging: only Microgram: Nutrient Tracker is marked available. Mentioned in the App Store description.
Audio logging: only Microgram: Nutrient Tracker is marked available. Mentioned in the App Store description.
Text logging: only Microgram: Nutrient Tracker is marked available. Mentioned in the App Store description.
Apple Health: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Micronutrients: only Microgram: Nutrient Tracker is marked available. Mentioned in the App Store description.
Workout tracking: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fasting: only Senza: Keto & Fasting is marked available. Mentioned in the App Store description.
Fit
Microgram: Nutrient Tracker has no best-fit line.
Senza: Keto & Fasting has no best-fit line.
Where the scores differ
Pricing value: Microgram: Nutrient Tracker 5.2, Senza: Keto & Fasting 10. Microgram: Nutrient Tracker: 10 - annualised price $71.90/15 (+0.5 if free trial). Senza: Keto & Fasting: 10 - annualised price $0.00/15 (+0.5 if free trial).
Ease of use: Microgram: Nutrient Tracker 7.8, Senza: Keto & Fasting 5. Microgram: Nutrient Tracker: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode). Senza: Keto & Fasting: 5 + 5 x best quality of fast-logging features (AI image/text/audio, barcode).
Feature depth: Microgram: Nutrient Tracker 2.7, Senza: Keto & Fasting 2.3. Microgram: Nutrient Tracker: 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.
Beginner friendliness: Microgram: Nutrient Tracker 8.6, Senza: Keto & Fasting 7. Microgram: Nutrient Tracker: 60% easeOfUse + 40% beginner skill-level fit. Senza: Keto & Fasting: 60% easeOfUse + 40% beginner skill-level fit.
User feedback: Microgram: Nutrient Tracker 8.7, Senza: Keto & Fasting 9. Microgram: Nutrient Tracker: Bayesian rating 4.68 (iOS 4.74x1140 + Play 0.00x0, prior 4.3x200) + review stars sentiment +0.55 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: Microgram: Nutrient Tracker 4.1, Senza: Keto & Fasting 1.7. Microgram: Nutrient Tracker: Last release 170 days ago (half-life 90d, 70%) + median 11 days between releases (30%). Senza: Keto & Fasting: Last release 332 days ago (half-life 90d, 70%) + median 47 days between releases (30%).
Traction: Microgram: Nutrient Tracker 5.1, Senza: Keto & Fasting 6.8. Microgram: Nutrient Tracker: log10 of 1140 total ratings (iOS+Play), 1M ratings = 10. Senza: Keto & Fasting: log10 of 12723 total ratings (iOS+Play), 1M ratings = 10.
Who should pick which
Choose Microgram: Nutrient Tracker if you need Photo logging and Audio logging. Choose Senza: Keto & Fasting if you need Apple Health and Workout tracking.