Comparison

onsim vs Zone2Be

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

Head to head
About

onsim

Features
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โ–  Personalized Workouts for You - We analyze your age, gender, resting heart rate, and health survey responses to recommend the most effective and safe target heart rate zone for you. โ–  Explanations from the Experts - Get a detailed breakdown of your health status, along with the reasoning behind why you should exercise this way. โ–  Weekly Goals at a Glance - Check your progress toward this week's goals at a glance and stay motivated. โ–  Heart Rate Analysis by Workout - See how effective today's workout was through your heart rate graph. โ–  My Health Change Report - Easily record and track your weekly changes in exercise, sleep, and overall health. โ–  Building Healthy Habits Together - Share your records, grow alongside your peers, and keep your consistency going. โ–  Who onsim Is For - Those who already exercise but feel they're not seeing enough results - Those who want to safely improve their fitness without pressure - Those who hesitate to start exercising due to conditions such as hypertension, diabetes, or dyslipidemia โ–  Frequently Asked Questions Q. Do I really need a wearable device? - If you have a device that can measure your heart rate via Bluetooth, you'll be able to access heart rateโ€“based workout analysis and personalized feedback for more accurate health management. To fully experience onsim's core features, we recommend connecting a device. Q. How are my target heart rate and workout duration calculated? - onsim determines your personalized target heart rate zone (Onsim Zone) and workout duration based on your age, gender, resting heart rate, and health survey responses, following the scientifically validated ACSM (American College of Sports Medicine) guidelines. Q. Where is my workout data collected from? - We use data provided by your phone and smartwatch. We collect and analyze data such as heart rate, step count, distance, calories, and workout time to provide you with reports. Q. Is this a medical service? - No. onsim is a health management and exercise guidance app. It does not replace medical diagnosis or treatment, and if you have any health concerns or are currently undergoing treatment, you must consult a medical professional. โ€ป This app is not a medical device and does not replace medical diagnosis, treatment, or prescription. The app is not responsible for any issues that may arise from the user's use of the information provided.

About

Zone2Be

Features
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๋œ! ํž˜๋“ค๊ณ  ๋”! ๋น ์ง€๋Š” ๋‹ค์ด์–ดํŠธ ์กดํˆฌ๋น„! ์šด๋™์€ ๊พธ์ค€ํ•จ์ด ํ•ต์‹ฌ์ด์ง€๋งŒ, ์ž์‹ ์˜ ์šด๋™ ๊ฐ•๋„์™€ ํšจ์œจ์„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ํŒŒ์•…ํ•˜๊ธฐ๋ž€ ์‰ฝ์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๊ฒŒ๋‹ค๊ฐ€ ๋™๊ธฐ๋ถ€์—ฌ๋Š” ๊ธˆ์„ธ ์‚ฌ๋ผ์ง€๊ณ , ๊ฒฐ๊ณผ๋Š” ๊ธฐ๋Œ€์— ๋ชป ๋ฏธ์น˜๊ณค ํ•˜์ฃ . ์ด ์•ฑ์€ ์šด๋™ ๊ฐ•๋„์™€ ์ง€๋ฐฉ ์—ฐ์†Œ ํšจ์œจ์„ ์‹ค์‹œ๊ฐ„์œผ๋กœ ๋ถ„์„ํ•˜๊ณ  ์ตœ์ ์˜ Zone2 ์ƒํƒœ๋ฅผ ์œ ์ง€ํ•˜๋„๋ก ๋„์™€์ค๋‹ˆ๋‹ค. ๋‹น์‹ ์€ ๋‹จ์ง€ ์›€์ง์ด๊ธฐ๋งŒ ํ•˜๋ฉด ๋ฉ๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š” ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ๊ฐ€์žฅ ํšจ์œจ์ ์ธ ๋ฐฉํ–ฅ์„ ์ œ์‹œํ•˜๋‹ˆ๊นŒ์š”. ์ ์€ ๋…ธ๋ ฅ์œผ๋กœ๋„ ํ™•์‹คํ•œ ๋ณ€ํ™”๋ฅผ ๊ฒฝํ—˜ํ•˜์„ธ์š”.

Screenshots

onsim4 screens
Zone2Be4 screens

Verdict

The call

The clearest difference is update cadence: onsim at weekly against Zone2Be's fortnightly. onsim also leads on iOS requirement (16.0 vs 18.5). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

onsim ships an update weekly, Zone2Be fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard2 real differences ยท 4 level
onsim versus Zone2Be: the parameters behind the verdict, then further details
ParameteronsimZone2Be
PriceFreeFree
Update frequencyWeekly โ€” betterFortnightly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, Apple Watch โ€” betteriPhone, Apple Watch
Requires iOS16.0 โ€” better18.5
Further details โ€” not scored
Size82 MB122 MB
Age rating17+17+
Developer์—์ด์น˜๋น„์ปค๋„ฅํŠธchang hyeok kang

In-app purchases

None

onsim

No in-app purchases

None

Zone2Be

No in-app purchases

Questions

Is onsim free?
onsim is free to download, with no in-app purchases.
Is Zone2Be free?
Zone2Be is free to download, with no in-app purchases.
Do onsim or Zone2Be have ads?
Neither onsim nor Zone2Be shows ads.
Which is updated more often, onsim or Zone2Be?
onsim ships an update weekly, and Zone2Be fortnightly. Most recently, onsim was updated on October 30, 2026 and Zone2Be on October 28, 2026.

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