Diet-Specific Apps

The "I have a diet, not just goals" page. For general nutrition tracking see Nutrition Tracking — Cronometer & MyFitnessPal; for macro-driven physique work see Macros & Physique Tracking; for allergen / intolerance focus see Allergen & Intolerance Tracking; for substitutions see Ingredient Substitutions.

Keto / low-carb

• ★ Carb Manager — paid + free; dominant keto tracker; net-carb math, ketone log, fasting timer; community recipes.
  • https://www.carbmanager.com
• Senza — paid; cleaner UI; smaller community.
• Diet Doctor — paid + free; recipes + meal plans; the brand around low-carb research.
• MyFitnessPal + macro overrides — works for keto; manually set 5/25/70 macros.
• Cronometer — net-carb display; the choice for ketogenic medical / epilepsy use cases (more accurate fiber data).

Plant-based / vegan

• ★ Daily Dozen by Dr Greger — free; tracks the 12 daily plant-food categories from How Not to Die. Simple, opinionated, highly-rated.
• ★ HappyCow — paid + free; vegan / vegetarian restaurant finder; the de-facto travel companion for plant-based eaters.
• Forks Plant-Based — paid + free; Forks Over Knives whole-food plan + recipes.
• Plant-Based on a Budget — free; Toni Okamoto's curated cheap recipes.
• IsItVegan — paid + free; barcode-scan; flags non-vegan ingredients.
• Cronometer — best general tracker for plant-based; B12 / D / iron / zinc / omega-3 monitoring is non-negotiable. See Nutrition Tracking.
• VegOut, VRG (Vegetarian Resource Group) — free reference content.

Mediterranean / DASH / blue-zones

• Lifesum — paid + free; opinionated about Mediterranean / Scandinavian-flavored.
• Mediterranean Diet App (multiple, varying quality) — generic.
• Blue Zones Power 9 — free reference content.
• MyFitnessPal templates — flexible; manually set macros to Mediterranean profile.
• Cronometer — fiber + monounsaturated fat tracking is the right lens for this diet.

Gluten-free / Celiac

• ★ Find Me Gluten Free — paid + free; the GF restaurant finder; user reviews; default for traveling celiac / GF.
• AllergyEats — same shape; broader allergen coverage.
• Gluten Free Scanner (Nima-app-shape) — barcode + crowd-flagged.
• Open Food Facts — gluten allergen flag on branded products. See Food Databases & Open Food Facts.
• King Arthur GF baking guide — free reference.

Whole30 / paleo

• Whole30 Approved app — paid + free; daily structure for the 30-day reset; recipe filter.
• Paleo (io) — paid + free; barcode + paleo-flag.
• Real Plans — paid; supports Whole30 / paleo as a meal-plan mode. See Meal Planning Apps.

Diabetes / glucose-driven

• ★ Levels — paid (~$200/yr); CGM-driven (Dexcom / Stelo); pairs your glucose curves with food log; consumer-CGM-flavored. The hot take in 2024-26 was most non-diabetics don't need this; it remains useful for the curious.
• Nutrisense — paid; same shape; coaching layer.
• Veri — paid; EU-flavored.
• Carb Manager — keto-flavored, has glucose log if you have a meter.
• mySugr — paid + free; Type-1-flavored diabetes log; insulin + carb + glucose.
• Blood Sugar Tracker apps — varying.

Intermittent fasting / time-restricted

• ★ Zero — paid + free; the dominant fasting app; clean UX; subscription on the upsell.
• Yazio — paid + free; fasting + tracking combined.
• DoFasting — paid; aggressive marketing; mediocre.
• LIFE Fasting Tracker — free; from Dr Jason Fung's network; less polished but free.

Low-FODMAP (IBS)

• ★ Monash University FODMAP Diet — paid (~$10 one-time); the Monash team literally invented the FODMAP system; gold-standard ingredient ratings. Worth every cent.
• Cara Care — paid + free; symptom + food log + IBS-flavored. See Allergen & Intolerance Tracking.

Anti-inflammatory / autoimmune (AIP)

• Mind Body Green AIP recipes — paid magazine.
• Whole30 + AIP overlap — most AIP apps repurpose Whole30 lists.
• AIP Reset / Real Plans AIP mode — paid.

Religious / cultural

• Halal Check apps — barcode-flag halal; varying quality.
• Kashrut.com / OUKosher app — kosher reference; free + paid.
• Open Food Facts halal / kosher tags — community-tagged; growing coverage.

Macros for athletes / sport-specific

• See Macros & Physique Tracking for MacroFactor / Carbon / RP Diet.
• Endurance-flavored: TrainingPeaks integrations + manual carb-targeting; almost no specialized food app for endurance.

Practical guidance

• ★ The diet that you'll do for 12 months wins. Pick adherence-friendly over theoretically-optimal.
• Most diet apps lock recipes / community behind subs. Often the free tier of a "diet" app is just a tracker — and Cronometer's free tier covers it better.
• Combine, don't replace. Daily Dozen as a checklist + Cronometer for nutrients + HappyCow for travel = better than any single plant-based app.
• Be skeptical of glucose-tracker hype. CGMs in healthy people produce data, not insight. Levels is interesting; not life-changing for most.
• Religious / allergen-flag apps lag reformulations. Always verify the label too.

Pick this if…

• Keto: Carb Manager.
• Plant-based, default tracker: Cronometer + Daily Dozen.
• Plant-based, eating out: HappyCow.
• Celiac / GF eating out: Find Me Gluten Free.
• Whole30 reset: Whole30 Approved app.
• IBS / low-FODMAP: Monash app.
• Glucose-curious: Levels (knowing it's a paid experiment).
• Intermittent fasting: Zero.
• General "I have a diet" tracker: Cronometer or MyFitnessPal with macros set.