Comparison

THE BULK vs Caltris

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

THE BULK

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Build Muscle Without Overthinking It Bulking should be simple. Most lifters fail to gain muscle because they lack consistency, not information. The Bulk is a minimalist muscle building tracker designed to help you gain weight, build muscle, and stay consistent in the gym. No complicated calorie tracking. No spreadsheets. No endless planning. Just the habits that actually grow muscle. WHO THE BULK IS FOR The Bulk is designed for people who want to gain muscle and track their bulking progress without complexity. Perfect if you: * Are starting your first bulk * Struggle to gain weight * Feel stuck at the same bodyweight * Want to build your next 5โ€“10 kg of muscle * Want a simple gym and habit tracker for hypertrophy MUSCLE-FOCUSED TRACKING Track the behaviors that actually drive muscle growth: * Daily calorie intake * Protein intake * Strength training sessions * Progressive overload * Recovery and rest * Bodyweight progress Everything is built around one goal: consistent muscle gain. MINIMALIST INTERFACE BUILT FOR LIFTERS The Bulk removes distractions and focuses on execution. Clean dark interface Fast daily tracking Clear visual progress Built for the gym, not for spreadsheets. CLEAN BULK GUIDANCE Stay in the right calorie surplus to gain muscle without unnecessary fat. Avoid dirty bulking. Avoid accidental cutting. Build quality size. MOMENTUM SYSTEM Muscle growth comes from stacking good days. Track your streaks. Build momentum. Stay consistent with training and nutrition. When consistency increases, results follow. WHY THE BULK WORKS Muscle growth depends on a few key principles: * Progressive overload * Consistent training * Adequate protein intake * Small calorie surplus The Bulk turns these principles into a simple daily system. No guessing. No overthinking. Just execution. PERFECT FOR * Natural lifters * Beginners learning to bulk * Intermediate gym athletes * Anyone trying to gain weight and build muscle * Lifters who want a focused hypertrophy tracker START YOUR NEXT 10KG TRANSFORMATION Stop guessing. Start building muscle. Download The Bulk and make muscle gain simple. Terms: https://thebulk.app/terms-and-conditions

About

Caltris

Features
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Caltris helps you understand your daily nutrition from a photo. Take a picture of your meal, let Caltris estimate foods and portions, edit the result if needed, then track calories, macros, vitamins, and your daily gaps in a clear dashboard. With Caltris, you can: - analyze a meal from a photo, with an optional nutrition-label photo - edit each food, weight, and nutrition value before saving - track calories, protein, carbs, fat, fiber, sodium, and vitamin coverage - view a daily dashboard with summary, trends, and history - get meal recommendations and an end-of-day review - use the smart fridge mode to guide recommendations with the foods you already have - connect Apple Health for burned calories, steps, and, when available, menstrual context - connect WHOOP for daily expenditure and more dynamic nutrition targets - connect Withings for body-composition tracking - chat with Nutritionist AI about your daily intake Caltris is also useful without connected integrations: you can analyze meals, correct them, and keep your history directly in the app. Important: - Nutrition estimates and recommendations are indicative. - Caltris does not replace professional medical or dietetic advice. - After a 12-day full trial, free mode remains available with 2 meal analyses per day. Vitamin insights, integrations, meal recommendations, and the smart fridge require Premium. Terms of Use: https://caltris.com/privacy.html Privacy Policy: https://caltris.com/privacy.html

Screenshots

THE BULK4 screens
Caltris4 screens

Verdict

The call

The clearest difference is update cadence: Caltris at every 2 weeks against THE BULK's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. THE BULK sells 3 in-app purchases, starting at $1.99 per month and Caltris sells 1 in-app purchase, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

THE BULK ships an update every 4 months, Caltris every 2 weeks. The most recent releases landed on October 31, 2026 and November 9, 2026 respectively.

Scorecard1 real difference ยท 5 level
THE BULK versus Caltris: the parameters behind the verdict, then further details
ParameterTHE BULKCaltris
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 weeks โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS16.4 โ€” better17.0
Further details โ€” not scored
Size63 MB5 MB
Age rating4+4+
DeveloperEscuela de Apps by Serrano de Torojeremy citone

In-app purchases

3 purchases

THE BULK

Subscriptions2
  • Bulk PRO Monthly$1.991 Month
  • Bulk PRO Yearly$11.991 Year
One-time1
  • Bulk PRO Lifetime$24.99
1 purchases

Caltris

Subscriptions1
  • Caltris Premium$3.991 Month

Questions

Is THE BULK free?
THE BULK is free to download, with in-app purchases available.
Is Caltris free?
Caltris is free to download, with in-app purchases available.
Do THE BULK or Caltris have ads?
Neither THE BULK nor Caltris shows ads.
Which is updated more often, THE BULK or Caltris?
THE BULK ships an update every 4 months, and Caltris every 2 weeks. Most recently, THE BULK was updated on October 31, 2026 and Caltris on November 9, 2026.

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