Fasting Tracker vs Ember
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fasting Tracker
This app helps you achieve weight loss goals through intermittent fasting and comprehensive tracking of calories, water, and activity. It offers smart reminders, data synchronization with health platforms, and insightful charts to visualize progress and adjust habits.
- Intermittent fasting guidance
- Calorie and water intake tracking
- Activity logging
- Sync with Apple Health and smart scales
- Fasting and water reminders
- Insightful progress charts
- Flexible fasting protocols
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LowCal: Intermittent Fasting & Weight Loss Tracker Give yourself the best chance to successfully lose body fat with LowCal, the ultimate intermittent fasting app designed to guide you through every step of your weight loss journey. Why LowCal? LowCal isn’t just about fasting—it’s a comprehensive toolset for tracking body fat, calories, water intake, and activity. Unlike other apps that oversimplify weight loss, LowCal emphasizes that sustainable weight loss comes from a consistent calorie deficit combined with healthy habits. Key Benefits: • Accurate Tracking: Monitor your calories, water intake, physical activity, and body composition over time. • Smart Reminders: Get fasting and water reminders to stay on track. • Data Sync: Seamlessly sync with Apple Health and smart scales like Renpho to automatically log weight and body fat metrics. • Insightful Charts: Visualize the correlation between your fasting periods and weight loss to adjust your habits effectively. • Flexible Fasting Protocols: Choose from 16:8, 18:6, and more. Color-coded schedules make it easy to start and adapt your fasting routine. • Community Motivation: Share achievements on social media, track your streaks, and stay motivated. How It Works: LowCal helps you create a calorie deficit by limiting eating windows and encouraging mindful eating during feeding times. It tracks hydration to support metabolism and overall health, provides activity logging via Apple Watch and HealthKit, and gives a holistic view of your progress with charts and metrics. Healthy Habits: • Start gradually to build sustainable fasting habits. • Combine intermittent fasting with a protein-rich diet and light exercise like daily walks. • Use the fasting dial to understand when you’re in fat-burning zones for effective fat loss. Additional Features: • Share fasting sessions and progress on social media. • Request new features directly within the app. • All data is stored locally and backed up to iCloud for peace of mind. Free & Premium: LowCal is free to use with a lifetime trial mode. LowCal has an optional subscription to support ongoing development. If you find the app valuable, please consider rating us on the App Store. We also welcome your suggestions — if you have feature requests, share them using the option in the settings page. Privacy Policy: https://redsprint.co.uk/lowcal/privacy Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ember
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Ember is the fasting tracker that tells you the truth. No pseudoscience. No guilt. Just your journey, visualised. Try Premium free for 7 days. Track your intermittent fasting with beautiful, real-time zone visualisation. Ember guides you through five science-backed metabolic zones — from post-meal processing to deep fasting — with honest language about what's happening in your body. REAL-TIME ZONE TRACKING Watch your progress through five metabolic zones with a stunning journey-map visualisation. Each zone is backed by published research, and we use honest language like "likely" and "research suggests" — because your body is unique. MULTIPLE FASTING PROTOCOLS Choose from popular intermittent fasting schedules: - 16:8 — The most popular daily fast - 18:6 — A step up for experienced fasters - 20:4 — The warrior diet approach - OMAD — One meal a day (Premium) - 36-hour — Extended fasting (Premium) - Custom protocols (Premium) BEAUTIFUL TIMER A warm, minimal timer with a circular progress ring that changes colour as you move through zones. Long-press to end a fast — no accidental taps. FASTING HISTORY View your fasting calendar as a heat map, inspired by contribution graphs. See your patterns at a glance with four intensity levels based on fast duration. STREAKS & STREAK SHIELD Build a daily fasting streak and watch your flame grow. Miss a day? Streak Shield (Premium) lets you repair a broken streak so one slip doesn't erase weeks of progress. View your total fasts, total hours, average duration, and longest fast. WEIGHT TRACKING Log your weight and see trends over time with a clean area chart. Your weight data stays private and secure. POST-FAST REFLECTIONS After each fast, capture how you felt, what broke your fast, and any notes. Build a personal journal of your fasting journey. OFFLINE-FIRST Ember works without an internet connection. Your data syncs to the cloud when you're back online. PREMIUM FEATURES Start with a 7-day free trial, then unlock the full Ember experience: - Streak Shield — repair a broken streak after a missed day - Full fasting history (free tier shows 7 days) - Advanced analytics and charts - OMAD and extended (36-hour) protocols - Complete weight trends - Unlimited fasting journal - Meal window reminders DESIGNED WITH CARE Ember features a warm minimalist design with a signature orange accent on dark backgrounds. Built for focus, not distraction. HONEST SCIENCE Every zone threshold is based on published research from leading journals. We cite our sources and acknowledge uncertainty — because that's what real science looks like. Your data is stored securely on AWS servers in the UK (London region), encrypted at rest and in transit. You can export or delete your data at any time. SUBSCRIPTION INFORMATION Ember Premium is offered as an auto-renewable subscription (Monthly or Annual), each starting with a 7-day free trial. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your Apple Account settings. Terms of Use (EULA): https://ember.wolftechnologies.co.uk/terms.html Privacy Policy: https://ember.wolftechnologies.co.uk/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Ember at none against Fasting Tracker's 4. On price, update cadence, ads and device support 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. Fasting Tracker sells 4 in-app purchases, starting at $0.99 per month. Ember asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 7, 2026 and September 17, 2026 respectively.
| Parameter | Fasting Tracker | Ember |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 89 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Redsprint Ltd | Wolf Technologies Ltd |
In-app purchases
Fasting Tracker
- 1 Month Premium Access$0.991 Month
- 1 Week Premium Access$0.997 Days
- 3 Month Premium Access$3.993 Months
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- 1 Year Premium Access$9.991 Year
Ember
No in-app purchases









