OP Zone vs Sparko
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OP Zone
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At Optimum Performance Zone, we offer an individualized approach to performance training for any athlete. We utilize high-end technology, state-of-the-art equipment and hands-on coaching to make the best athlete possible.
Sparko
Effortlessly track your food intake and understand your nutrition with AI-powered analysis. Simply snap a photo of your meal or scan a barcode to get instant calorie and macro breakdowns. Focus on building healthy habits without restrictive diets.
- AI food photo analysis
- Barcode scanner
- Automatic calorie calculation
- Macro and micronutrient breakdowns
- Daily calorie goals
- Water intake tracking
- AI Coach for nutrition advice
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Sparko is an AI-powered calorie tracker, smart food counter, nutrition assistant, and healthy lifestyle app designed to make daily tracking simple and practical. Instead of complicated diets and strict restrictions, Sparko helps you understand your habits and make more informed choices every day. Track your calories in seconds. Snap a photo of your meal, scan a barcode, or add foods manually. Sparko analyzes calories, macros, and nutrients so you can easily keep track of what you eat. Sparko is more than just a calorie counter. It brings together nutrition tracking, intermittent fasting, recipes, water intake, exercise, weight tracking, and AI-powered features in one place. Key Features • AI-powered food photo analysis • Barcode scanner for quickly adding packaged foods • Automatic calorie and macro calculation • Macro and micronutrient breakdowns • Daily calorie goals and progress tracking • Water intake tracking with reminders • Exercise and activity calorie estimation • Weight and BMI tracking • Weekly progress and nutrition trends • Intermittent fasting tracking • Multiple fasting plans • Personalized recipes based on your preferences and calorie goals • All-in-one calorie counter, nutrition, and health tracker Talk to Sparko Ask Sparko anything about the foods you eat, calories, meals, recipes, or your everyday nutrition habits. Sparko can provide meal ideas, recipe suggestions, food information, and practical recommendations to help you make more informed choices throughout the day. Recipes Tell Sparko what you feel like eating or what kind of recipe you want. Get recipes tailored to the ingredients you have, the type of meal you want, your preferences, or a specific calorie target. Whether you want a lower-calorie meal, a higher-calorie option, or a recipe that fits a specific calorie goal, Sparko makes it easy to find meal ideas that match your needs. Intermittent Fasting Easily track your intermittent fasting routine. Monitor your fasting and eating windows, follow your progress, and manage your daily fasting routine in one place. Sparko Premium Upgrade to Sparko Premium to unlock: • Unlimited photo-based food analysis • More detailed macro and micronutrient insights • Personalized daily insights and suggestions • More advanced trends and weekly reports • Premium nutrition and tracking features Sparko Premium is available with weekly, monthly, and yearly subscription options. Subscription options and availability may vary by region. Whether your goal is to lose weight, gain weight, maintain your current weight, or build healthier eating habits, Sparko makes daily tracking simple, fast, and clear. Start tracking smarter and building better habits today. Support Need help or have questions? Contact us at: support@sparkaitech.com Terms & Conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sparkaitech.com/sparko/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: OP Zone at none against Sparko's 10. OP Zone also leads on iOS requirement (14.0 vs 17.0). Sparko's advantage is update cadence (every 4 months vs every 10 months). On price, 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. Sparko sells 10 in-app purchases, starting at $1.99 per 7 days. OP Zone asks for nothing beyond the download.
OP Zone ships an update every 10 months, Sparko every 4 months. The most recent releases landed on October 28, 2026 and October 30, 2026 respectively.
| Parameter | OP Zone | Sparko |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 10 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 97 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Neff | SPARK AI TEKNOLOJI YAZILIM TICARET VE SANAYI LIMITED SIRKETI |
In-app purchases
OP Zone
No in-app purchases
Sparko
- CalorieAI+ Weekly$1.997 Days
- CalorieAI+ Weekly$2.497 Days
- CalorieAI+ Monthly Plan$2.991 Month
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- CalorieAI+ Monthly3 Days trial$2.991 Month
- CalorieAI+ Monthly3 Days trial$4.991 Month
- CalorieAI+ Monthly Plan$4.991 Month
- CalorieAI+ Monthly3 Days trial$7.491 Month
- CalorieAI+ Yearly Plan3 Days trial$19.991 Year
- CalorieAI+ Yearly Plan3 Days trial$29.991 Year
- CalorieAI+ Yearly Plan3 Days trial$39.991 Year









