Comparison

168 vs Fast & Slim

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

Head to head
About

168

This app helps you track intermittent fasting with a focus on simplicity and visual progress. It offers scientific dietary advice and integrates seamlessly with dark mode for a comfortable experience.

Highlights
  • Minimalist tracking
  • Visual progress rings
  • Weekly/monthly data insights
  • Scientific dietary advice
  • Dark mode support
Features
Read full description

Make fasting fit your life. See every effort add up. Start a fast in just a few taps. 168 brings your timer, eating window, history, and trends together, so you can follow today's progress and see how far you've come. Know where you stand See elapsed time, progress toward your goal, and your expected finish time at a glance. Clear fasting and eating phases help you plan your day around your routine. Keep your progress close Add a widget to your Home Screen to see your time, progress, and expected finish without opening the app. Your routine stays in view while you get on with your day. See your effort add up Explore weekly, monthly, and six-month views of your fasting history. See completed fasts, total hours, and average duration, and turn individual sessions into a bigger picture. Find a plan that fits Choose from fasting schedules including 16:8, 18:6, and 20:4, or set a custom duration. Enable notifications to hear when you reach your fasting goal or your eating window ends. Fix a record in moments Correct the start and end times of completed fasts or delete entries you no longer need. Your statistics update along with your history, so your progress reflects what actually happened. Learn more, with sources to explore Discover tips for fasting and eating, with references to research papers you can explore for yourself. No account to create. Just open the app and get started. iCloud sync keeps your fasting history connected across iPhone and iPad. Available in English, Simplified Chinese, Japanese, Korean, and Spanish. Start your next fast. Make it part of your rhythm.

About

Fast & Slim

Read full description

Fast & Slim is a simple intermittent fasting timer and weight-loss tracker designed to help you build healthy habits, stay consistent, and feel more in control of your daily routine. Whether you want to lose weight, follow an intermittent fasting plan, create better structure in your day, or simply feel lighter and more balanced, Fast & Slim gives you a calm and easy way to track your progress. Fasting does not have to feel complicated. With Fast & Slim, you can start your fast in seconds, follow your fasting window, check your progress at a glance, and stay connected to your wellness goals with a clean and friendly design. Fast & Slim helps you: - Build a simple intermittent fasting routine - Track your fasting window with ease - Stay consistent with your fasting schedule - Support your weight-loss goals - Follow your daily progress clearly - Create healthier habits over time - Feel more in control of your wellness routine Whether you are just getting started or already following a fasting plan, Fast & Slim gives you a clean and motivating space to stay on track. Use it as your daily fast tracker to follow your fasting time, review your progress, and make each day feel more intentional. Free version includes: - Easy fasting timer - Clear daily tracking - Simple and beautiful interface Premium unlocks: - Ad-free experience - Full fasting history Fast & Slim is perfect for anyone looking for a simple way to stay consistent, feel better, and support healthy weight loss through intermittent fasting. Start gently, stay steady, and make progress one day at a time.

Screenshots

1684 screens

Verdict

The call

The clearest difference is in-app purchases: 168 at none against Fast & Slim's 1. 168 also leads on device support. On price and iOS requirement 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. Fast & Slim sells 1 one-off in-app purchase. 168 asks for nothing beyond the download.

Scorecard2 real differences · 8 level
168 versus Fast & Slim: the parameters behind the verdict, then further details
Parameter168Fast & Slim
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 weeks—
AdsNo—
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — better—
Requires iOS17.0 — better18.6
Further details — not scored
Size4 MB7 MB
Age rating17+4+
Developer凌青 张Sergi Franquet

In-app purchases

None

168

No in-app purchases

1 purchases

Fast & Slim

One-time1
  • Fast & Slim$0.99

Questions

Is 168 free?
168 is free to download, with no in-app purchases.
Is Fast & Slim free?
Fast & Slim is free to download, with in-app purchases available.

Other comparisons