Comparison

LEFT vs Interval Timer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

LEFT

Features
Read full description

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/

About

Interval Timer

Features
Read full description

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

LEFT4 screens
Interval Timer4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

Scorecard2 real differences · 4 level
LEFT versus Interval Timer: the parameters behind the verdict, then further details
ParameterLEFTInterval Timer
PriceFreeFree
Update frequencyWeekly—
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.413.0 — better
Further details — not scored
Size34 MB43 MB
Age rating4+4+
DeveloperSELIM KAAN DEMIRBILEKRAMAZAN USEN

In-app purchases

2 purchases

LEFT

Subscriptions2
  • LEFT Premium (1 Week)7 Days trial$0.997 Days
  • LEFT Premium (1 Year)$2.991 Year
2 purchases

Interval Timer

Subscriptions2
  • Premium Monthly$6.991 Month
  • Premium Yearly$29.991 Year

Questions

Is LEFT free?
LEFT is free to download, with in-app purchases available.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Do LEFT or Interval Timer have ads?
LEFT shows ads; Interval Timer does not.

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