Kalova vs FastingWindow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kalova
This app uses AI to identify foods from photos and calculate their calorie and macronutrient content using USDA data. It also provides a metabolic health score and allows for manual logging and barcode scanning. Premium features include unlimited AI scans and CGM glucose insights.
- AI food scanner from photos
- USDA FoodData Central integration
- Metabolic Health Score
- Barcode and Nutrition Facts label scanner
- Personalized meal plan
- CGM glucose insights (Premium)
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Kalova is an AI calorie counter: snap, speak or scan your meals. Snap a photo of any meal, say what you ate, or scan a barcode. AI identifies each food and estimates the portion; when a food matches USDA FoodData Central, calories and macros are calculated from USDA values, and anything without a match is marked as an estimate. You get a per-item breakdown you can edit in a tap. AI CALORIE COUNTING, BUILT FOR ACCURACY • AI food scanner: point your camera at any plate and get every item with an estimated portion • USDA-sourced nutrient values, with a "USDA-sourced" stamp on meals matched to FoodData Central • See the per-item breakdown and remove anything the AI got wrong; totals recompute instantly • Scan any Nutrition Facts label for the package's own numbers — read on your iPhone, never uses an AI scan • Barcode scanner and 1M-food search • Describe a meal by typing — or just say it: dictation runs on your iPhone, audio is never uploaded FIBER, SODIUM AND YOUR OWN BLOOD PRESSURE • Fiber and sodium from the same USDA records — shown only when the record has them, never guessed • Fiber target set from your own calorie goal, with your median tracked against it • Protein timing: see how many of your meals reach the per-meal threshold • Log blood pressure and salt, and Kalova compares your own higher-sodium days against your lower ones. A pattern in your own readings — never a prescription, never a diagnosis. METABOLIC HEALTH SCORE — EAT BETTER, NOT JUST LESS One number, 0–100, that rises as your diet improves. It is based on the food quality, fiber and protein of what you log. Educational only, not medical advice. BUILT FOR TRAINING, TOO • Fuel timing that reads your workouts from Apple Health — what to eat before a session and after it • Sport-aware targets for runners, cyclists, swimmers and triathletes • Exercise burn shown as a range; your budget uses the conservative end PRIVACY No account. No ads. No third-party analytics or ad trackers. Your food log, goals and Apple Health data stay on your iPhone. When you run an AI photo or describe scan, the photo or text is sent to Kalova's server and processed by a third-party AI provider (OpenAI, Google Gemini or Cloudflare Workers AI) to estimate nutrition. Our server does not store your meal photos. Kalova asks your permission before your first AI scan. EVERYTHING ELSE YOU'D EXPECT • CGM glucose insights: if you use a CGM that syncs to Apple Health, see how your glucose changed in the 2 hours after each logged meal (Premium). Educational only, not medical advice. • Nutri-Score (A–E) and ultra-processed (NOVA) flags on packaged foods • Personalized plan with an adaptive calorie budget that adjusts to your weight trend • Fasting timer, streaks, water, weight trend, meal reminders, Siri Shortcuts, Apple Health sync • Home-screen widgets, Apple Watch app, a weekly Sunday Report, and a shareable Nutrition Receipt for every scan • Available in 11 languages FREE Barcode scanner, label scanner, food search, quick add, plan, dashboard, water, weight, streaks, reminders and Apple Health sync, plus a daily allowance of free AI scans. PREMIUM Unlimited AI photo and describe scans and full CGM glucose insights. Prices are shown in the app before you buy. Subscriptions auto-renew unless cancelled at least 24 hours before the period ends; manage or cancel in Apple ID → Subscriptions. A free trial, when offered, converts to the paid plan if not cancelled before it ends. DISCLAIMER Calorie, macro and glucose information in Kalova is educational, not a clinical measurement or medical advice. Kalova is not a medical device and is not for diagnosing, treating or managing any condition, including diabetes. If you need medical-grade tracking, use the tools your care team prescribed. Privacy Policy: https://caloriecountglobal.pages.dev/privacy Terms of Use: https://caloriecountglobal.pages.dev/terms Support: https://caloriecountglobal.pages.dev/support
FastingWindow
This app offers a straightforward method for tracking intermittent fasting. It visualizes your fasting progress with a live ring and details the five metabolic stages your body goes through. Understand your body's response during fasting with clear explanations.
- Simple fasting tracking
- Live progress ring
- Five metabolic stage explanations
- No account required
- No subscription needed
- Real-time progress monitoring
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FastingWindow is the cleanest, simplest way to track intermittent fasting — no account, no subscription, no noise. Pick a schedule (16:8 or 12:12), tap Start Fast, and watch your progress in real time. A live ring shows exactly where you are in your fast, and as the hours pass you'll move through five metabolic stages — from initial digestion all the way to deep ketosis. Each stage is explained so you actually understand what your body is doing, not just how long you've been waiting.
Screenshots
Verdict
The clearest difference is update cadence: FastingWindow at every 2 days against Kalova's weekly. Kalova's advantage is iOS requirement (17.0 vs 26.4). On price, rating, ratings volume and ads 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. Kalova sells 4 in-app purchases, starting at $0.99 per month and FastingWindow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Kalova against 5.0 for FastingWindow. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Kalova ships an update weekly, FastingWindow every 2 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.
| Parameter | Kalova | FastingWindow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 14 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Daler Soliev | Moon Labs |
Customer experience
Kalova
FastingWindow
In-app purchases
Kalova
- Monthly Premium$0.991 Month
- Premium Annual7 Days trial$9.991 Year
- Yearly — Welcome Back$19.991 Year
- Premium Lifetime$14.99
FastingWindow
- Unlock Forever$2.99









