Comparison

UnderForge vs Calorie Tracker

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

Head to head
About

UnderForge

Features
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UnderForge is a personal fitness and longevity coach that builds a fully customized action plan around your body, your goals, and your life. Then guides you every step of the way and makes it easy to track progress. Whether you want to build muscle, burn body fat, increase strength, or simply get challenged by a world-class program, UnderForge forges a plan that is yours alone. CHOOSE YOUR GOAL Burn body fat Build muscle mass Increase strength Get challenged by your coach HOW IT WORKS When you join, your coach gets to know you. You'll answer a focused set of questions about your training experience, physique, schedule, nutrition, sleep, stress, and existing pain. Your coach then uses that full picture to generate a personalized hypothesis about your biggest obstacles and builds a prioritized, step-by-step action plan designed to break through them. You can review the plan and ask for revisions. This is your forge. HUMA OR AI COACH ALWAYS ON Choose between an AI-only plan and a human + AI plan. AI-only is fully complete and you have all the tools you need to achieve your goals. Human + AI plans adds a boost to accountability and even more personal touch. You decide. Ask about any step in your plan, request a technique breakdown, nutrition targets. Your coach remembers your full profile and adapts every response to your situation. Weekly check-ins keep your plan current. Progress is tracked right inside the app — no need for spreadsheets or additional trackers. CONSISTENCY SCORE AS PRIORITY Most important is that you achieve consistency, therefore we created a unique score to help you stay consistent. The score is higher as you log workouts and meals. This score will also incorporate sleep and breathwork routines and adherence. TRAINING, NUTRITION AND RECOVERY SIMPLIFIED Training — Personalized programming around your schedule, progressive overload, and warm-up protocols. Tailored to gym, home, or park training and available equipment. Nutrition — Macro and calorie targets and guidelines based on your goals and body composition and preferences. Supports all dietary styles vegan, keto, halal, gluten-free, etc. Recovery — Sleep and stress protocols, supplement guidance, and mobility recommendations that keep you performing. Logging — Log workouts easily and meals with photos or text. BUILT FOR REAL PEOPLE From complete beginners to athletes with 10+ years of training, nutrition and longevity expertise, UnderForge adapts to your experience level, your available equipment, your dietary restrictions, and even the areas of your body you want to prioritize. Your plan is not a generic template. It is engineered for you. MUSCLE. LONGEVITY. FORGED. Privacy Policy: https://www.underforge.app/privacy-policy.php Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Calorie Tracker

Features
Read full description

FitLess is the simplest way to track what you eat — just snap a photo, speak, or type, and let AI do the counting. No endless searching, no tedious databases. Track less, live more. LOG MEALS IN SECONDS • Snap a photo of your plate and AI estimates calories and macros • Or just say or type what you ate — "two eggs and a slice of toast" • Log workouts and activity the same way — "ran for 30 minutes" • Manual entry whenever you want full control CALORIES & MACROS MADE SIMPLE • See calories remaining against your daily goal at a glance • Automatic carbs, protein, and fat breakdown for every entry • Personalized daily targets based on your goal TRACK YOUR WEIGHT & BMI • Log your weight and watch the trend over time • Built-in BMI indicator • Clear charts for weight, calories, and macros STAY MOTIVATED • Build daily streaks for consistent logging • Weekly and monthly insights into your progress • Gentle daily reminders — you pick the time, or turn them off BUILT FOR YOUR GOALS Whether you want to lose weight, maintain, build muscle, or simply eat healthier, FitLess adapts to you. PRIVACY FIRST • No account required to start • Your data stays in your control WORKS IN YOUR LANGUAGE Available in 60+ languages, with AI that understands meals described in any language. FitLess Premium unlocks unlimited AI logging, full nutrition stats and trends, and weight tracking. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account. Manage or cancel anytime in your App Store settings. Privacy Policy: https://fitless.framer.website/privacy-policy Terms of Use: https://fitless.framer.website/terms-of-use Start today — track less, live more.

Screenshots

UnderForge4 screens
Calorie Tracker3 screens

Verdict

The call

The clearest difference is update cadence: UnderForge at every 10 days against Calorie Tracker's every 2 months. UnderForge also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. UnderForge sells 3 in-app purchases, starting at $3.99 per 7 days and Calorie Tracker sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

UnderForge ships an update every 10 days, Calorie Tracker every 2 months. Both last shipped on November 9, 2026.

Scorecard2 real differences Ā· 4 level
UnderForge versus Calorie Tracker: the parameters behind the verdict, then further details
ParameterUnderForgeCalorie Tracker
PriceFreeFree
Update frequencyEvery 10 days — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size128 MB20 MB
Age rating17+4+
DeveloperVenture CO Group Korlatolt Felelossegu TarsasagMehmet Demir

In-app purchases

3 purchases

UnderForge

Subscriptions3
  • UnderForge Premium Weekly14 Days trial$3.997 Days
  • UnderForge Premium Quarterly14 Days trial$29.993 Months
  • UnderForge Premium Yearly14 Days trial$89.991 Year
3 purchases

Calorie Tracker

Subscriptions3
  • FitLess Premium Weekly3 Days trial$4.997 Days
  • FitLess Premium Monthly$8.991 Month
  • FitLess Premium Yearly$39.991 Year

Questions

Is UnderForge free?
UnderForge is free to download, with in-app purchases available.
Is Calorie Tracker free?
Calorie Tracker is free to download, with in-app purchases available.
Do UnderForge or Calorie Tracker have ads?
Neither UnderForge nor Calorie Tracker shows ads.
Which is updated more often, UnderForge or Calorie Tracker?
UnderForge ships an update every 10 days, and Calorie Tracker every 2 months. Most recently, UnderForge was updated on November 9, 2026 and Calorie Tracker on November 9, 2026.

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