Weight Trekker vs CTRL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Weight Trekker
This app helps users track and predict weight changes while using specific weight loss medications. It offers personalized insights into weight loss trajectories, potential side effects, and drug concentration levels, all within a user-friendly interface.
- Track weight from starting to goal weight
- Monitor GI side effects and patient-reported outcomes
- Personalized weight loss predictions
- Visualize drug concentration levels
- Compare progress with community data
- Customizable notes and metrics
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WEIGHT TREKKER Built by drug experts, Weight Trekker is the most advanced app to track and predict your weight changes with Zepbound®, Mounjaro®, Wegovy®, or Ozempic®. Use our advanced, science-based, models to better understand your personal weight loss trajectory, side effects risks, and drug concentration levels. You can also compare your progress - all in one simple, free app. Key Benefits & Features: BUILT FOR REAL LIFE • Track your progress from Starting Weight → Goal Weight. • Monitor 4 key GI side effects and 3 Patient-Reported Outcomes (PROs). • Enter your data in under a minute each week - effortless and intuitive. ADVANCED INSIGHTS • Get personalized weight loss predictions powered by our advanced, science-based, prediction model. • Visualize how semaglutide or tirzepatide levels increase with repeated and higher dosing. • Understand your side-effect trends via our state-of-the-art graphics, predictions and summaries. JOIN THE WEIGHT TREKKER COMMUNITY • Everyone tracks the same way, so you can see how your results align with real-world data from other GLP-1 users. • Weight Changes - See how your weight loss journey compares to other GLP-1 users in the Weight Trekker community. • GI Side Effects - What GI side effects are most common among GLP-1 users? Are they rated as Mild, Moderate or Severe? How do they change over time? • Patient Reported Outcomes - Are other GLP-1 users rating their Weight Loss, Tolerability and Overall Satisfaction like you? Excellent? Poor? CUSTOMIZE TO YOUR PERSONAL REQUIREMENTS • Add optional notes and metrics like injection site, fatigue, calories, protein, and water intake. • Fully customizable dose levels. • Personalize your Table & Graph views for clearer insights. CHECK OUT OUR LATEST 5 STAR REVIEWS! • “Great Analytics and Graphs. Excited to see an app with predictive modeling being developed. Data entry is user friendly. Seeing the progression of the dosage concentration is helpful. As I entered portions of my data and played around with my data set, the app accurately predicted the progression of my weight loss.” GLP1_SavesLives: 01/03/2025 • “Invaluable. This is a great app which helps with identifying trends and increases motivation! Love it!” Yamit55: 01/23/2025 DOWNLOAD TODAY! Download today and join a community of Weight Trekker members looking to track and scientifically predict their weight loss journey with Zepbound®, Mounjaro®, Wegovy®, or Ozempic®. PHYSICAL HARM DISCLAIMER The information and data provided by this app are intended for personal weight, GI side effects and PRO tracking purposes. While our app offers predictions based on your data, these predictions are not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare professional before making any decisions related to your health or weight management. PRIVACY We value and respect your privacy. You can delete your account at any time via the “Delete Account” button in the Settings menu. This will completely delete all your data from our database. Privacy Policy: https://weighttrekker.com/privacy/ Terms of Use: https://weighttrekker.com/terms/
CTRL
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CTRL helps you take back control of your phone -- not through willpower, but through science. Unlike traditional screen time blockers, CTRL is built on behavioral psychology and anti-dopamine design principles. It targets the root cause of phone addiction by changing your relationship with your device, not just limiting your time on it. HOW IT WORKS Guardian Delay System When you reach for a distracting app, CTRL creates a 10 to 120 second pause between urge and action. During this window, you'll move through breathing exercises, sensory grounding, and reflection prompts designed to break the autopilot loop. Trigger Tracking Label what's driving the urge -- boredom, stress, loneliness, anxiety, or habit. Over time, CTRL learns your patterns and delivers personalized strategies based on what actually works for you. Smart Replacements Choose from 9 healthy alternatives: guided breathing, pushups, journaling, walking, hydration, calling a friend, stretching, reading, or listening to music. CTRL tracks which replacements work best for each trigger. Reflection Journal Log your mood, energy, triggers, and actions daily. Build self-awareness and watch your progress over time. 20-Day Transformation Challenge A structured program that takes you from awareness to habit change in three weeks, with daily tasks and reflection prompts. AI Behavioral Coaching Get personalized, real-time coaching powered by AI that recognizes your patterns and offers actionable advice when you need it most. WHY CTRL IS DIFFERENT Most apps fight your phone with restrictions. CTRL rewires the habits behind the behavior. The goal isn't to keep you in the app forever. Success is when you don't need CTRL anymore. Download CTRL start breaking the scroll cycle today. Terms of Use: https://www.tryctrl.tech/terms.html Privacy Policy: https://www.tryctrl.tech/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Weight Trekker at none against CTRL's 2. CTRL's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CTRL sells 2 in-app purchases, starting at $9.99 per month. Weight Trekker asks for nothing beyond the download.
Weight Trekker ships an update every 3 weeks, CTRL every 10 days. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.
| Parameter | Weight Trekker | CTRL |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (28 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 28 — better | — |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 29 MB |
| Age rating | 12+ | 4+ |
| Developer | Alan Maloney | Nicolas Dos Santos |
Bugs and requests
Weight Trekker
Reported bugs
3 issues- 🐛 Won't let me save data
- 🐛 Data running off the background
- 🐛 Cannot add custom dose
Requested features
14 requests- Extend DCR to 52 weeks or longer
- Improve main progress graph
- Add color and inspiration to the UI
- Allow editing of dosage day
- Add waist, hips, and chest measurements
Show 9 moreShow fewer
- Connect to Apple Health
- Allow more personalized dose amounts
- Start the week with weight on shot day
- Add Black British ethnicity option
- View predictor data for shorter durations
- Add protein and water intake tracking
- Add other body measurements for tracking
- Add injection site tracking
- Add fatigue tracking
CTRL
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Weight Trekker
No in-app purchases
CTRL
- Monthly$9.991 Month
- Yearly$49.991 Year









