LEFT vs Interval Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LEFT
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The calorie tracker. Reinvented. We looked at every nutrition app on the market and noticed the same problem: They are digital clutter. They force you to work for them—scrolling through endless databases, guessing portions, and managing messy interfaces. We didn't just build a better tracker. We deconstructed the entire experience and built the only one that actually works. Welcome to LEFT. DESIGNED FOR CLARITY Open the app and you see exactly what matters: The Ring. No noise, no distractions. Just a radically simple visual of what you have LEFT for the day. It is designed to be invisible—it gives you the answer you need instantly, so you can get back to living. INTELLIGENCE, NOT GUESSWORK Photos are a gimmick. A camera sees a salad; it doesn't see the three tablespoons of olive oil hidden at the bottom. That’s a margin of error you can't afford. LEFT uses a text-first AI engine. You type "Cheeseburger and a latte," and we understand the chemistry of that meal better than a photo ever could. It is precision, simplified. GHOST ESTIMATES: ADAPTIVE PRECISION We built an AI that thinks with you. If you enter something vague like "Pasta," our Ghost Engine wakes up. It doesn't nag you; it intelligently queries you—maximum 3 distinct questions—to dial in the exact macros. Don't care? Skip it. You are always in control. ZERO FRICTION Conversational Logging: Type like you speak. "3 eggs, avocado toast, black coffee." Done. Blazing Fast: Offline-first architecture means zero latency. Log in a subway tunnel or on an airplane. It just works. Smart Hydration: We track water from every source, including your food. Biology is complex; your tracker shouldn't be. Stop entering data. Start tracking progress. Download LEFT. It’s the closest thing to magic you’ll find in the Health & Fitness category. Free Features: Log meals Calorie tracking Premium Features: Advanced Macros Home Screen Widgets Unlimited History Privacy Policy: https://eaten-app.vercel.app/privacy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Interval Timer
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Interval Timer: Gym & HIIT is a powerful and easy-to-use workout timer designed for high-intensity training. Whether you're doing HIIT, boxing rounds, Tabata, or gym intervals, this app helps you stay focused and train with precision. KEY FEATURES • Custom interval workouts • HIIT, boxing, and gym presets • Clean and distraction-free timer • Warm-up and cooldown support • Round tracking and total workout time • Simple and fast setup TRAIN YOUR WAY Create your own intervals or use ready-made presets for HIIT, boxing, or gym training. Stay focused on your workout while the timer handles everything. PREMIUM FEATURES • Unlimited saved workouts • Advanced presets • Voice guidance This app is designed for athletes who want a clean, fast, and reliable interval timer without distractions. Download now and take your training to the next level. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Interval Timer at none against LEFT's shown. Interval Timer also leads on iOS requirement (13.0 vs 18.4). On price, in-app purchases 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. LEFT sells 2 in-app purchases, starting at $0.99 per 7 days and Interval Timer sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | LEFT | Interval Timer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | SELIM KAAN DEMIRBILEK | RAMAZAN USEN |
In-app purchases
LEFT
- LEFT Premium (1 Week)7 Days trial$0.997 Days
- LEFT Premium (1 Year)$2.991 Year
Interval Timer
- Premium Monthly$6.991 Month
- Premium Yearly$29.991 Year








