Comparison

75 Days Challenge vs OneWay

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

Head to head
About

75 Days Challenge

This app guides users through a 75-day personal growth journey focused on building mental toughness, self-discipline, and improving health. It helps track diet, exercise, water intake, reading, and daily progress photos.

Highlights
  • Customizable diet plan tracking
  • Daily exercise logging (indoor/outdoor)
  • Water intake monitoring
  • Reading progress tracker
  • Daily progress photo documentation
  • Challenge reset reminder
Features
Read full description

Introducing the 75 Days Challenge app, designed to help you transform your life by developing mental toughness, self-discipline, and improving overall health and fitness. Our app provides an easy-to-use platform to guide you through 75 consecutive days of personal growth and transformation. Key Features: Customizable diet plan: Choose any diet plan that suits your needs and goals, and adhere to it strictly for the entire challenge, with no cheat meals allowed. Daily exercise tracking: Log your two workouts per day, with at least one workout being outdoors. Tailor your workouts to your fitness level and preferences. Water intake monitor: Easily track your daily consumption of 1 gallon (3.78 liters) of water to promote hydration, improved bodily function, and overall health. Reading progress: Stay accountable with your daily goal of reading 10 pages of non-fiction, self-improvement, or educational content. Daily progress photos: Document your physical transformation by taking a daily progress photo, encouraging motivation and commitment. Challenge reset reminder: If you fail to follow any of the rules, our app will remind you to restart the challenge from Day 1, reinforcing the importance of self-discipline and mental fortitude. Please consult a healthcare professional before starting any new diet or exercise program, especially if you have any existing health conditions or concerns. Download the 75 Days Challenge app today and embark on a transformative journey towards a stronger, healthier, and more disciplined version of yourself!

About

OneWay

Features
Read full description

OneWay: Deficit — weight loss based on the first law of thermodynamics. You run on calories the way a car runs on gas. A car stops when the tank is empty; your body keeps going by using stored energy. OneWay does not tell you what to eat or put you on a diet—it helps you log what you actually eat, learn how many calories are in it, and see whether you are in a surplus or deficit each day. Over time, that picture is what moves the scale. Eat what you want. Build the habit of logging, notice patterns, and decide what to change based on real numbers—not rules from an app. What OneWay does • Log calories fast — breakfast, lunch, dinner, snacks. • Import burn and weight from Apple Health — activity tracker + smart scale are required. • Dashboard — surplus or deficit at a glance, day by day • Stats — weight trends and cumulative deficit over time • Smart Burn Calibration — after enough weigh-ins, OneWay suggests an adjustment so your burn estimate better matches your body (you choose whether to apply it) • Smart Reminders — gentle nudges to log breakfast, lunch, and dinner • Share Progress — share your journey with the details you choose — streaks, deficit, and weight progress Hit your goals your way OneWay does not set a target weight or calorie goal for you. You see the math—surplus, deficit, and trend—and use it to move toward your goals, with a healthcare or nutrition professional if you choose. Best with • Apple Health enabled (weight + active/resting energy) • Activity tracker synced to Health for daily burn • Smart scale syncing weight into Health • Consistent logging and regular weigh-ins Your data stays on your device No accounts. No cloud sync. Calorie logs and settings are stored locally on your iPhone. Educational tool — not medical advice OneWay does not prescribe calorie targets, meal plans, or medical treatment. Work with a qualified professional before changing diet or exercise. Pricing OneWay is free to download. Core logging and HealthKit import are free. Smart Burn Calibration, Smart Reminders, Share Progress, and other Smart features require OneWay Smart — an optional auto-renewable subscription (monthly or yearly) with a free trial. Cancel anytime in App Store settings. No advertising. Legal Privacy Policy: https://onewaycoaching.app/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ OneWay Smart terms: https://onewaycoaching.app/terms.html

Screenshots

75 Days Challenge4 screens
OneWay4 screens

Verdict

The call

The clearest difference is device support: 75 Days Challenge at 3 against OneWay's 1. 75 Days Challenge also leads on iOS requirement (12.4 vs 17.0). On price, ads and in-app purchases 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. 75 Days Challenge sells 1 one-off in-app purchase and OneWay sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
75 Days Challenge versus OneWay: the parameters behind the verdict, then further details
Parameter75 Days ChallengeOneWay
PriceFreeFree
Rating2.5 (15 ratings) — better—
Positive reviews20.0% of reviews—
Number of ratings15 — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.4 — better17.0
Further details — not scored
Size29 MB17 MB
Age rating4+4+
DeveloperDmytro ShvaherOneWay LLC

In-app purchases

1 purchases

75 Days Challenge

One-time1
  • Premium$0.99
2 purchases

OneWay

Subscriptions2
  • OneWay Smart Monthly14 Days trial$4.991 Month
  • OneWay Smart Yearly14 Days trial$49.991 Year

Questions

Is 75 Days Challenge free?
75 Days Challenge is free to download, with in-app purchases available.
Is OneWay free?
OneWay is free to download, with in-app purchases available.
Do 75 Days Challenge or OneWay have ads?
Neither 75 Days Challenge nor OneWay shows ads.

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