onTrack vs AllyFastLite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
onTrack
Effortlessly monitor your daily active and resting calorie burn, and track your food intake against personalized targets. Stay motivated with customizable home screen widgets that display your progress at a glance.
- Automatic activity and calorie syncing
- Monitor burned calories with progress bars
- Track consumed calories and meal targets
- Home screen widgets for instant data view
- Customizable graph and widget colors
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OnTrack is a calorie tracking app that works best with Apple Watch and Apple Health. It automatically syncs your activity and calorie data to help you stay on top of your fitness goals. Whether you’re training for performance or just staying active, OnTrack provides intuitive insights that keep you motivated and informed every step of the way. Daily Activity Effortlessly monitor your daily activity, calorie burn, and more through dynamic progress bars and weekly charts. See how your current totals compare against your goals with real-time updates and personalized visuals. Apple Watch users will benefit from the most accurate tracking, making OnTrack a powerful tool for understanding your energy expenditure. Meal Logging Track your daily intake and see how your meals stack up against your targets. Weekly consumption graphs help visualize trends, while simple summaries highlight how close you are to reaching your calorie goals each day. Widgets Stay motivated with powerful widgets that bring your data to your Home Screen and Lock Screen. Instantly view daily activity stats all without opening the app. Widgets are color-coded and customizable (with upgrade), keeping your progress front and center throughout the day. Customization Make your experience your own by purchasing color customization for graphs and widgets for $6.99. Personalize metric colors, heatmap themes, and widget backgrounds across the app and your widgets. Match your style and stay motivated.
AllyFastLite
This app offers a clean and private intermittent fasting timer. It supports various fasting schedules and provides insights into fasting stages. All data is stored locally on your device for enhanced privacy.
- Intermittent fasting timer
- Supports multiple fasting plans
- Extended fast tracking
- Editable fasting history
- Fasting stage insights
- Local data import/export
- Dark Mode support
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AllyFast is a beautifully crafted intermittent fasting timer built with SwiftUI. Clean, lightweight, and privacy-first. Whether you follow 16:8, 18:6, 20:4, OMAD, or extended fasts, AllyFast keeps your fasting journey simple and focused. Why AllyFast? • No subscriptions. One-time $0.99. Yours forever. • 100% private. All data stays on your device. • No ads, no trackers, no accounts, no clutter. • Ultra lightweight at just 1.7 MB. Key Features • Beautiful fasting timer with smooth SwiftUI animations • Supports intermittent fasting plans: 12:12, 14:10, 16:8, 18:6, 20:4, OMAD • Extended fasts up to 72 hours • Editable fasting history with color-coded goal tracking • Science-based fasting stage insights (fed state, ketosis, autophagy, and more) • Unlimited local import and export of your fasting data • Polished for iOS 26 Liquid Glass • Full Dark Mode support Perfect Privacy Your fasting data never leaves your iPhone. No cloud sync, no servers, no tracking. Just you and your fast. Built for Everyone From beginners exploring their first 16:8 fast to experienced fasters tracking multi-day autophagy windows, AllyFast adapts to your goals without getting in the way. No cloud. No noise. Just fasting.
Screenshots
Verdict
The clearest difference is in-app purchases: AllyFastLite at none against onTrack's 1. AllyFastLite also leads on ratings volume (9 vs 1). onTrack's advantage is rating (5.0 vs 4.8). 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. onTrack sells 1 one-off in-app purchase. AllyFastLite asks for nothing beyond the download.
onTrack holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: AllyFastLite has 9 ratings behind it against 1, so its average is the more settled of the two.
onTrack ships an update every 7 months, AllyFastLite every 5 months. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.
| Parameter | onTrack | AllyFastLite |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.8 (9 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 9 — better |
| Update frequency | Every 7 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 17+ | 4+ |
| Developer | Anuj Shelat | Wonseok Lee |
Customer experience
onTrack
AllyFastLite
In-app purchases
onTrack
- Customization Feature$6.99
AllyFastLite
No in-app purchases









