Comparison

100 Sit vs CellaLonga

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

Head to head
About

100 Sit

This app acts as a personal fitness coach, using your device's motion sensor to automatically count sit-ups. It provides a structured training plan, voice coaching, and motivational features like leaderboards and streaks to help you achieve your core strength and abs goals.

Highlights
  • Automatic sit-up counting via motion sensor
  • Voice coaching for feedback
  • Global and friend leaderboards
  • Personalized training plans
  • Goal setting and reminders
  • Workout streaks tracking
  • Integration with Apple Health
Features
Read full description

100 Sit-Ups Six Pack Trainer transforms your iPhone/iPad into your very own FITNESS COACH. Sit-ups are among the most popular strength exercises for a flat belly and ripped abs for a reason. They’re highly effective and a big step towards your sixpack. Seize the moment, maximize your motivation and kick off your journey to perfect abs! This innovative app leverages the power of technology to automatically detect your sit-ups using the motion sensor on your device. It diligently keeps track of your sit-up repetitions, assists you in reaching new personal milestones, and provides essential support for achieving your fitness goals. Moreover, a comprehensive training regimen and dynamic voice coaching are seamlessly integrated. With this app, you have the flexibility to enhance your core strength anytime, anywhere. Embark on a journey guided by a meticulously crafted training plan that adapts to your fitness level and aspirations. You can opt for one of three intensity levels, progressing from 0 to 100 Sit-Ups. To foster your enthusiasm, a captivating leaderboard awaits, allowing you to measure your progress against friends and even individuals worldwide. Should you desire to unite with colleagues, you can effortlessly establish a distinct leaderboard exclusively for your group. Ultimately, we are committed to your success. This is why we introduce a user-friendly goal setting feature and the motivating concept of streaks. Set daily, monthly, and yearly objectives and receive timely reminders. By engaging in a workout each day, you cultivate a streak and unlock additional motivation! PRO TIP: As little as 3-5 minutes of daily sit-up training will fortify your cardiovascular fitness, enhance endurance, amplify upper body strength, and sculpt your muscles over time. Witness your sit-up prowess skyrocket! APP FEATURES: - Counts completed Sit-Ups by the proximity sensor or your nose - Voice coach for feedback - Leaderboard with friends and global leaderboard. Add a filter to the leaderboard to compare to your peer - Live Leaderboard - Set personal goals (Daily, Monthly, Yearly) and get reminders. - Quick statistics on the main screen - Calendar view - Scientifically developed training plan. Choose your Plan level 1-2-3 - Streaks - tracks the number of days in a row you’ve completed a workout (works in combination with the 100 Push-Ups app) - Statistics in your profile. See your weekly, monthly, and yearly progress in a chart - Personal Record - Show & shine by sharing your personal record on social media - Achieve new levels by doing more push-ups - Connect to Apple Health - Create groups and add your co-workers, families, etc., to the leaderboard - Leaderboard filters (Age, Sex, Country, etc.) - Share your success on Instagram, Snap, TikTok, and other social media platforms SUPPORT Our goal is to build the best fitness apps in the world. You can help us by reporting bugs and requesting features via email: support@foxyfitness.app TERMS & PRIVACY https://foxyfitness.app/privacy-policy https://foxyfitness.app/terms-of-service SUBSCRIPTION PRICING AND TERMS: The App offers an auto-renewing monthly subscription at USD 3,99/month (or currency equivalent) and an auto-renewing yearly subscription at USD 29,99/year (or currency equivalent) to provide you with unlimited access to all PRO Features. Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified.

About

CellaLonga

Features
Read full description

Fasting isn't a diet. It's your longevity lever — measured honestly, owned for life. CellaLonga follows your body through the real metabolic journey of a fast: fed, glycogen, the metabolic switch, fat-burning, ketosis, autophagy, and deep autophagy — rendered as a living ring, not a countdown timer. THREE LAWS OF HONESTY Most fasting apps blur the line between what's known and what's guessed. CellaLonga never does: • Estimated, refined, and measured are always labelled — never confused. • Autophagy is always shown as an estimate. No consumer device can measure it directly, no matter what other apps claim. • Ketosis is the only stage that can become "measured" — and only if you log a real ketone reading. Every source is cited, with its caveats. YOUR OWN MIRROR See honest, non-causal correlations between your fasting windows and how you actually feel, sleep, and recover — never a single statistic without the data behind it, never a claim before there's enough of it. LONG FASTS, DONE RESPONSIBLY 24 to 72-hour fasts come with a real safety brief — hydration, warning signs, how to break a long fast gently — not just a longer timer. OWN IT, DON'T RENT IT One purchase unlocks full sources, measured mode, long fasts, your complete mirror, and unlimited history. No subscription. No guilt quizzes. No countdown pressure. PRIVATE BY DESIGN CellaLonga has no backend, no account, and collects nothing. Apple Health connection is entirely optional and only enriches what already works from a simple daily log. CellaLonga is informational only and is not medical advice. Consult a clinician before attempting extended fasts, especially if you take medication or have a medical condition.

Screenshots

100 Sit4 screens
CellaLonga4 screens

Verdict

The call

The clearest difference is ads: CellaLonga at none against 100 Sit's shown. 100 Sit's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (16.0 vs 18.0). 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. 100 Sit sells 2 in-app purchases, starting at $3.99 per month and CellaLonga sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

100 Sit ships an update every 2 weeks, CellaLonga every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
100 Sit versus CellaLonga: the parameters behind the verdict, then further details
Parameter100 SitCellaLonga
PriceFreeFree
Rating4.9 (139 ratings) — better—
Positive reviews87.8% of reviews—
Number of ratings139 — better—
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size370 MB12 MB
Age rating4+4+
DeveloperFoxyfitness GmbHThanh My DUONG

Bugs and requests

100 Sit

Reported bugs

4 issues
  • Counts sit-ups inaccurately
  • App freezes after in-app purchase
  • Accidentally pay for premium due to screen sensitivity
  • Pause ends too soon due to screen sensitivity

Requested features

4 requests
  • Allow filters to be set permanently
  • Wish for a way to go back
  • Language option for Russian
  • Option to go back

CellaLonga

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

100 Sit

Subscriptions2
  • Sit-Ups PRO3 Days trial$3.991 Month
  • Sit-Ups PRO3 Days trial2 variants$19.991 Year
1 purchases

CellaLonga

One-time1
  • Nerd Mode — Lifetime$19.99

Questions

Is 100 Sit free?
100 Sit is free to download, with in-app purchases available.
Is CellaLonga free?
CellaLonga is free to download, with in-app purchases available.
Do 100 Sit or CellaLonga have ads?
100 Sit shows ads; CellaLonga does not.
Which is updated more often, 100 Sit or CellaLonga?
100 Sit ships an update every 2 weeks, and CellaLonga every 2 months. Most recently, 100 Sit was updated on October 27, 2026 and CellaLonga on October 24, 2026.

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