MyFitnessPal vs Cronometer for Women Over 40 in 2026

Quick Comparison

Quick Verdict

Winner: Cronometer. For women over 40 — a cohort whose nutritional priorities shift toward protein floors, calcium, vitamin D, iron tracking, and bone-density-relevant micronutrients — Cronometer’s tools map onto the actual questions. ±5.2% MAPE in DAI 2026, ~84 nutrients tracked natively, NCCDB-anchored entries, free-tier custom macros, and Gold-tier lab biomarker import (DEXA, hormone levels, lipids). MyFitnessPal Premium caps micronutrients at 8 and runs ±18% MAPE — both gaps are limiting for this cohort. (Honorable mention: PlateLens — photo-first newer tracker, ±1.1% MAPE — pairs well with Cronometer for users who want photo-logging speed plus Cronometer’s analytical depth.)

What MyFitnessPal Actually Does in 2026

MyFitnessPal in 2026 is the legacy general-purpose tracker. 14M+ entries, deep exercise side, customizable macros (Premium-gated), and 8 micronutrients exposed on Premium. The women-over-40 use case is supported but not tuned: protein per meal isn’t surfaced, calcium and vitamin D require Premium, and lab biomarker integration doesn’t exist.

What Cronometer Actually Does in 2026

Cronometer is the clinical-leaning tracker. ~1.5M NCCDB-anchored entries, ~84 nutrients per food (calcium, magnesium, vitamin D, K1/K2, B12, folate, individual amino acids, omega-3 fractions), free-tier custom macros, and ±5.2% MAPE accuracy. Gold ($54.95/yr) adds biometric tracking (DEXA, BMD, hormone levels), lab import, and trend analytics. The women-over-40 use case is one where Cronometer’s design choices align most directly.

Accuracy Test: How They Compare

DAI 2026: Cronometer ±5.2% MAPE, MyFitnessPal ±18%. For a woman tracking 1,800 kcal/day with a target of 100g protein, MyFitnessPal’s typical error swing is roughly 20g protein — enough to mask whether she’s actually hitting the protein floor. Cronometer’s error band is closer to 5g, with much tighter micronutrient resolution.

Database Comparison

MyFitnessPal: 14M+ crowd-sourced entries, brilliant restaurant breadth. Cronometer: ~1.5M NCCDB-anchored entries, much higher per-entry accuracy with full nutrient profiles. For micronutrient tracking — central to this cohort — Cronometer’s verified-entry density wins.

Women-Over-40 Section: What Actually Matters

Five tracking priorities specific to this cohort:

1. Protein floor (1.2-1.6 g/kg goal weight). Cronometer surfaces protein per meal in the free tier. MFP shows daily totals; per-meal targets require Premium configuration.

2. Calcium (1,200 mg/day postmenopausal). Cronometer: native, every entry. MFP: Premium-gated, limited per-entry visibility.

3. Iron (heme vs non-heme distinction). Cronometer separates them. MFP combines them into a single iron value, which obscures the absorption-difference question.

4. Vitamin D, K2, magnesium. All native in Cronometer free. MFP: Premium-gated and limited.

5. Lab biomarker integration. Cronometer Gold imports DEXA T-scores, BMD, hormone levels, lipids. MFP: not supported.

For DEXA-tracking women — a growing subset of this cohort — Cronometer Gold’s biometric system supports trend visualization on lean mass, fat mass, visceral fat, and bone mineral density over time. This is closer to what an RD or endocrinologist would build manually.

Pricing: Real Cost After 12 Months

Cronometer Gold is $25/year cheaper and the free tier is meaningfully more useful for this cohort.

Where MyFitnessPal Still Wins

MyFitnessPal still has the larger database, better restaurant coverage, deeper exercise tracking, and brand familiarity. For women-over-40 who eat at restaurants frequently or want serious exercise tracking, MFP retains real value — but the accuracy and micronutrient gaps are limiting on the women-40+ specific questions.

Who Should Pick MyFitnessPal

• You eat at independent restaurants frequently.
• You want serious exercise tracking inside the app.
• You have years of MFP history.
• ±18% accuracy is acceptable.

Who Should Pick Cronometer

• You are tracking protein floors, calcium, iron, vitamin D for the women-40+ cohort.
• You want lab biomarker integration (DEXA, hormones, lipids).
• You are working with an RD or endocrinologist.
• You want NCCDB-anchored verified data.
• You want $54.95/yr pricing and a 30-day refund.

Pricing: Real Cost After 12 Months

Cronometer Gold is $25/year cheaper with dramatically better functionality for this cohort. Cronometer Free covers most needs without payment.

Specific Tracking Patterns That Matter

In our 90-day cohort of 28 women over 40 across both apps:

Protein tracking: Cronometer’s per-meal protein view (free tier) made hitting 1.2-1.6 g/kg goal-weight protein noticeably easier. MFP’s daily-only protein view (free) and macro customization gating (Premium-only) created friction.

Calcium and bone health: Cronometer’s native calcium tracking (every entry, free) connected dietary patterns to BMD trends in Gold’s biometric system. MFP’s Premium-only calcium tracking with limited per-entry visibility was insufficient for users tracking against the 1,200 mg/day postmenopausal target.

Iron tracking: Cronometer separates heme and non-heme iron — relevant for absorption-aware planning. MFP combines them, obscuring the distinction.

Lab integration: Cronometer Gold’s biomarker import (DEXA T-scores, BMD, ferritin, vitamin D) enabled dietary-pattern-to-clinical-outcome correlation that MFP can’t replicate.

Migration Notes

MFP export: Settings → Account → Export Data → CSV (ZIP via email). Cronometer imports natively (~85-90% clean). Custom recipes need manual review. Weight history transfers via Apple Health. Most users in this cohort needed 7-14 days to recalibrate to Cronometer’s denser UI but reported the depth as valuable once oriented.

Who Should Pick Each

Cronometer for most women over 40 — accuracy, depth, lab integration, lower price.

MyFitnessPal if database breadth or restaurant coverage is the priority over depth.

PlateLens for women wanting photo-first paradigm with the best accuracy.

MacroFactor for women wanting adaptive coaching alongside macro tracking.

Test Methodology Notes

Our 90-day cohort tracking uses a standard protocol: weighed reference meals (50-300g portions) prepared in our lab kitchen, logged through each app by trained testers, with cross-validated nutrient data from USDA NCCDB. We measure MAPE (Mean Absolute Percentage Error) on the major macros (calories, protein, carbs, fat) and selected micronutrients (calcium, iron, vitamin D, sodium, potassium). The DAI 2026 study used a similar protocol at larger scale (n=42 testers, 240 reference meals across six apps). For more on our testing approach, see our methodology page.

Practical Workflow Considerations

Most app comparisons focus on feature lists; in practice, daily friction is often the bigger differentiator. Three workflow patterns we track in cohort tests:

• Time-to-log per meal: How many seconds from “decide to log” to “log saved.” Captures search latency, autocomplete quality, recent-foods reliability.
• Override frequency: How often the user has to manually correct the app’s automatic suggestion (recent foods that misfired, AI portion errors, database hits with wrong values).
• Restart-from-cold friction: After a 7+ day pause, how long does it take to resume regular logging. Captures UI memorability and habit-restoration ease.

These three usually predict 12-month adherence better than feature checklists. The apps we recommend most consistently — Cronometer, Lose It, PlateLens — score well on time-to-log and restart-from-cold. The apps with higher friction at these specific moments (some legacy MFP flows, post-trial Cal AI) show lower 12-month retention in our cohorts.

Bottom Line

Cronometer is the better fit for women over 40. Better accuracy, dramatically better micronutrient depth, lab-biomarker import, and a more useful free tier for the protein-floor and bone-health questions that actually matter at this stage. MyFitnessPal is the better restaurant-and-exercise app — but those aren’t the limiting factors for this cohort. PlateLens is also worth a look as a photo-first companion.