Cal Gem vs CycleStack
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Cal Gem
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Cal Gem β AI Smart Nutrition & Glucose Tracker Snap. Understand. Improve. One Photo = All the Data Just snap a picture of your meal. Cal Gem automatically identifies ingredients and calculates calories, protein, fats, and carbs in seconds. No typing, no searching, no hassle. Seamless CGM Sync Connect directly with LibreLink to monitor your glucose levels in real-time. Access smart graphs, AGP reports, and in-depth meal impact analysis to see exactly how your body responds to what you eat. Smart Real-Time Alerts High blood sugar? Post-meal spike? Cal Gem alerts you instantly and explains whyβhelping you take action before itβs too late. Personalized to Your Goals Whether youβre managing diabetes, losing weight, or optimizing fitness, Cal Gem tailors its recommendations to your specific health journey. Key Features: Visual AI Food Diary: Automatic meal logging via camera. Continuous Glucose Monitoring: Interactive charts and clinical reports. Predictive Insights: See how specific meals will likely affect your sugar. Macro Tracking: Daily breakdown of calories, protein, and more. Extensive Food Database: Comprehensive recognition for local and global dishes. User-Friendly Interface: Built for simplicity and speed. Whether you are managing diabetes or simply want to eat smarterβCal Gem puts you in full control. Download now. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula
CycleStack
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Track your supplements, vitamins and medications β and actually stay consistent. CycleStack is built for real health routines. Whether you take daily vitamins, follow complex cycling protocols, or manage medications for yourself or a loved one β CycleStack keeps you on track automatically. SMART SCHEDULING Set your routine once. Daily, every few days, fixed cycles, or on/off week protocols β CycleStack handles any schedule automatically so you never have to think about it. NEVER RUN OUT Track remaining doses and get notified before you hit zero. No more running out mid-cycle when the store is closed. STAY MOTIVATED See your daily completion with the battery-style progress tracker. Build streaks, earn badges and watch your consistency improve over time. SYNC ACROSS YOUR DEVICES Sign in with Apple to silently sync your entire stack across iPhone and iPad. Reinstall the app or switch devices β everything comes back automatically. PRIVATE BY DESIGN No account required to get started. Your data stays on your device. Export or delete anytime. BUILT FOR EVERYONE β Supplement stacks and biohacking protocols β Daily vitamins and over-the-counter medications β Prescription medication management β Elderly care and caregiver routines Free to get started. Premium unlocks full history, advanced stats, unlimited supplements and cloud backup. Terms of Use: https://nusli.app/terms Privacy Policy: https://nusli.app/privacy
Screenshots
Verdict
The clearest difference is ads: CycleStack at none against Cal Gem's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Cal Gem sells 1 in-app purchase, starting at $7.99 per month and CycleStack sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Cal Gem ships an update every 3 weeks, CycleStack every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Cal Gem | CycleStack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks β better | Every 2 months |
| Ads | Yes | No β better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 β better | 15.1 |
| Further details β not scored | ||
| Size | 53 MB | 45 MB |
| Age rating | 17+ | 4+ |
| Developer | Amir Rahav | NIKOLAOS SYNANIDIS |
In-app purchases
Cal Gem
- monthly subscription$7.991 Month
CycleStack
- Monthly Premium$2.991 Month
- Annual Premium$17.991 Year
- Lifetime Access$39.99









