Comparison

Ninja Fit 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

Ninja Fit

This app offers AI-powered calorie tracking and personalized nutrition plans to help users achieve weight loss, muscle gain, or balanced lifestyle goals. It features meal logging, weight tracking, and weekly progress reports, with seamless integration for fitness apps and devices.

Highlights
  • AI-driven calorie tracking
  • Personalized nutrition plans
  • User-friendly meal logging
  • Weight and progress tracking
  • Fitness app integration
  • Weekly progress reports
Features
Read full description

Start your journey to health and fitness with Ninja Fit! Whether you're looking to lose weight, build muscle, or maintain a balanced lifestyle, Ninja Fit provides personalized tools to help you achieve your goals. Ninja Fit includes an AI-driven calorie tracker to help you manage your daily intake without hassle. It also provides personalized nutrition plans aligned with your specific goals. The app’s user-friendly meal logging system helps you monitor what you consume, while the weight tracking feature allows you to see the tangible results of your efforts. Download and start a free 7-day Premium trial. Receive comprehensive weekly reports detailing your progress. Adjust your diet based on these insights, with AI assistance, or share your progress with your coach for expert advice. Connect with your favorite fitness apps and devices for seamless workout synchronization. Track your steps, log exercises, and find out how many calories you've burned. Why Ninja Fit? - AI-based personalized meal plans - Extensive food database - User-friendly interface with barcode scanning - Integration with popular fitness apps - Progress tracking and daily insights Beyond a mere calorie tracker, Ninja Fit acts as a virtual dietitian, personal trainer, and nutrition coach. It’s designed to help you grasp your eating habits, make informed food choices, stay motivated, and achieve your health objectives. Importantly! Ninja Fit is not responsible for your health. Before using the application, be sure to consult your doctor. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Interval Timer

This advanced interval timer supports HIIT, Tabata, and circuit training with customizable work, rest, and cooldown periods. Stay focused with voice alerts, background operation, and music integration for any fitness routine.

Highlights
  • Customizable workouts
  • Pre-set & custom intervals
  • Voice & sound alerts
  • Music integration
  • Background operation
  • Dark & light mode
Features
Read full description

Take your HIIT, Tabata, and circuit training to the next level with this advanced interval timer—your ideal companion for structured, high-intensity workouts. Whether you're an athlete, fitness enthusiast, or just getting started, this app helps you stay focused and push your limits. Key Features: Customizable Workouts – Set your work, rest, and cooldown times to suit any routine Pre-Set & Custom Intervals – Use built-in templates or create your own Voice & Sound Alerts – Stay on track without looking at your screen Music Integration – Keep your energy high with background music Dark & Light Mode – Choose the look that works best for you Background Operation – Timer continues even when using other apps Great For: HIIT and Tabata sessions Sprint and running drills Strength and circuit training Martial arts, boxing, and MMA Yoga, stretching, and meditation Includes optional paid subscriptions, which can be canceled at any time. Download now and stay in control of your training—wherever you are. Privacy Policy: https://doc-hosting.flycricket.io/interval-timer-hiit-privacy-policy/e8e356e5-c8bf-44a0-af21-1ced9ed45894/privacy Terms of Use: https://doc-hosting.flycricket.io/interval-timer-hiit-terms-of-use/02c4d0ca-29f9-47f1-a4d5-36c2b4ec4688/terms

Screenshots

Ninja Fit4 screens
Interval Timer4 screens

Verdict

The call

The clearest difference is ads: Interval Timer at none against Ninja Fit's shown. Ninja Fit's advantage is update cadence (every 2 weeks vs monthly). On price, rating, review sentiment and ratings volume 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. Ninja Fit sells 9 in-app purchases, starting at $4.99 per month and Interval Timer sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.2 for Ninja Fit against 4.2 for Interval Timer. Both are backed by a comparable volume of ratings — 10 and 10 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Ninja Fit ships an update every 2 weeks, Interval Timer monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Ninja Fit versus Interval Timer: the parameters behind the verdict, then further details
ParameterNinja FitInterval Timer
PriceFreeFree
Rating4.2 (10 ratings)4.2 (10 ratings)
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings1010
Update frequencyEvery 2 weeks — betterMonthly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size169 MB31 MB
Age rating12+4+
DeveloperAlexey KostylevLori Nguyen

Customer experience

Ninja Fit

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Interval Timer

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

9 purchases

Ninja Fit

Subscriptions8
  • Ninja-Pro Access (Monthly)3 Days trial$4.991 Month
  • Ninja-Pro Access (Weekly)3 Days trial$7.997 Days
  • Ninja-Pro Access (Weekly)$9.997 Days
Show 5 more
  • Ninja-Pro Access (Monthly)$12.991 Month
  • Ninja-Pro Access (Monthly)3 Days trial$12.991 Month
  • Ninja-Pro Access (Yearly)3 Days trial$29.991 Year
  • Ninja-Pro Access (Yearly)3 Days trial$59.991 Year
  • Ninja-Pro Access (Yearly)$89.991 Year
One-time1
  • Ninja Pro (Lifetime)$149.99
3 purchases

Interval Timer

Subscriptions3
  • Premium Timer (weekly)3 Days trial$4.997 Days
  • Premium Timer (monthly)3 Days trial$12.991 Month
  • Premium Timer (yearly)$39.991 Year

Questions

Is Ninja Fit free?
Ninja Fit is free to download, with in-app purchases available.
Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Which has better reviews, Ninja Fit or Interval Timer?
Ninja Fit and Interval Timer are both rated 4.2 out of 5 on the App Store, from 10 and 10 ratings respectively.
Do Ninja Fit or Interval Timer have ads?
Ninja Fit shows ads; Interval Timer does not.
Which is updated more often, Ninja Fit or Interval Timer?
Ninja Fit ships an update every 2 weeks, and Interval Timer monthly. Most recently, Ninja Fit was updated on November 3, 2026 and Interval Timer on October 30, 2026.

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