0 vs sit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
0
This app guides users through an 8-week program to build strength and stamina, aiming to achieve 200 situps. It offers voice cues, progress tracking, and community sharing features, with a free trial available.
- 8-week training program
- Voice cues for guidance
- Achieve badges and awards
- Social media integration
- Free trial period
- Unlimited access with pass
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■ Join the millions completing the Zen Challenge Series! ■ 0 to 200 Situps in 8 weeks! ■ Featured on Glamour Magazine, Yahoo!’s Appolicious, Popsugar Fitness, Apple’s “What’s Hot”, Apple’s “New & Noteworthy”, and doctor recommended on healthTap! "I've tried tons of different ab workouts, but this one was my favorite. It starts out easy to give you the confidence you need to keep going. Started only being able to do about 20 situps and week 2 is already 25, but the program breaks it into smaller sets and gives you rest breaks to build your stamina gradually. I'm now at 50 situps!" Are you ready for the 200 Situps Challenge? Train your body and build up to completing 200 situps with same people that brought you the OFFICIAL #1 5K Training app C25K®. Using a proven program, you will be able to complete 200 situps after just 8 weeks! The Zen Challenge Series is tailored towards all fitness levels. From first-timers to fitness veterans, this app will build up your strength and stamina to complete 200 situps. ≈ It's easy and straight forward to start ≈ 1. Just open the app and start! 2. Listen to the voice cues! ≈ Features ≈ ◎ First 2 weeks are free! Get started today! ◎ Achieve badges and awards for finishing a workout! ◎ Intuitive user friendly interface ◎ Integrated with Facebook/Twitter/Instagram communities, so share your progress and achievements! ≈ NEW Zen Unlimited Pass - Try it for free! ≈ ◉ Award winning music curated from top DJ's! ◉ Scientifically proven to increase motivation by 35% ◉ Unlimited access to all pro features across ALL Zen Labs Fitness apps We hope you enjoy the app and find it to be a useful training tool. Please leave us any friendly feedback, and rate us if you like the app! Questions/comments regarding the app? Please email us at contactus@zenlabsfitness.com or visit us at www.zenlabsfitness.com. ≈ Connect ≈ Facebook: @C25Kfree Twitter: @C25Kfree Instagram: @officialc25k Hashtag: #C25K https://forums.zenlabsfitness.com Subscription pricing and terms: The subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before current period ends. You can go to your iTunes Account settings to manage your subscription and turn off auto-renew. Your iTunes Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed. Privacy Policy & Terms of Use: https://www.zenlabsfitness.com/privacy-policy/ Legal Disclaimer This app and any information given by it or by Zen Labs Fitness are for educational purposes only. They are not intended nor implied to be a substitute for professional medical advice. You should always consult your healthcare provider before beginning any fitness program.
sit
This application is designed to help you track your sit-up count. It serves as a dedicated companion for your abdominal workouts, providing a simple and focused way to monitor your progress.
- Sit-up counting functionality
- Abs workout companion
- Progress tracking for sit-ups
- Simple and focused interface
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Welcome to the 'sit-ups' app! The only function of this app is counting your sit-ups. This app is an excellent abs workout companion! >>App screenshots are created using screenshots.pro.
Screenshots
Verdict
The clearest difference is in-app purchases: sit at none against 0's 3. sit also leads on review sentiment (88% vs 59%) and iOS requirement (12.2 vs 16.0). 0's advantage is rating (4.7 vs 4.4) and update cadence (every 2 months vs every 11 months). On price, ads 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
Both are free to download. 0 sells 3 in-app purchases, starting at $4.99 per month. sit asks for nothing beyond the download.
0 holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: 0 has 2.1K ratings behind it against 67, so its average is the more settled of the two. Written reviews complicate that: 59% of 0's written reviews are positive against 88% of sit's, so the app with the better star average is not the one people write more warmly about.
0 ships an update every 2 months, sit every 11 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.
| Parameter | 0 | sit |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.1K ratings) — better | 4.4 (67 ratings) |
| Positive reviews | 58.9% of reviews | 87.5% of reviews — better |
| Number of ratings | 2.1K — better | 67 |
| Update frequency | Every 2 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 68 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Zen Labs | Hiroki Kijima |
Customer experience
0
sit
Bugs and requests
0
Reported bugs
2 issues- Timer pauses when switching apps
- Lack of background audio playback
Requested features
3 requests- Ability to adjust workout intensity and rest times
- Option to skip warm-up
- Workout progress tracking improvements
sit
Not enough reviews yet to summarise bugs or requests.
In-app purchases
0
- Zen Unlimited Pass Monthly7 Days trial$4.991 Month
- Zen Power Playlist 3 Months7 Days trial$29.993 Months
- Zen Unlimited Pass Annual7 Days trial$74.991 Year
sit
No in-app purchases









