A leading South Korean fitness instructor and YouTuber known as one half of the Heungdoong-i twins.
Chae-hyung Yun is a prominent South Korean fitness creator and professional instructor with over 17 years of experience in the industry. As one of the twin sisters behind the massive Heungdoong-i brand, she has become a household name for home workout enthusiasts across Asia. She focuses on providing practical diet tips based on her personal 18-year fitness journey while empowering followers to achieve their physical goals through accessible and energetic exercise routines.
Latest recorded followers, subscribers and engagement on each platform.
1.3M
as of Oct 16, 2026
Followers
Chae-hyung Yun's contact route, audience split and rate estimates are ready — members see them in one tap.
Chae-hyung Yun, better known to her fans as Teacher Yun, is a veteran South Korean fitness instructor and content creator. She is widely recognized as part of the Heungdoong-i twin duo, where she utilizes her extensive background in professional exercise instruction to guide her audience. Having been involved in fitness and dieting for nearly two decades, she brings a wealth of practical experience and empathy to her teaching style.
Chae-hyung Yun rose to digital prominence through the success of the Heungdoong-i YouTube channel, which capitalized on the rising global trend of home training. The channel gained massive traction by offering synchronized, high-energy workouts led by twin sisters, making fitness feel both social and accessible. Their approachable personalities and professional expertise helped them stand out in the crowded health and wellness niche.
Her content primarily revolves around high-quality home training videos, ranging from full-body fat-burning sessions to targeted muscle toning. She is well-known for her 'diet tips' series, where she shares honest advice based on her 18 years as a practitioner. The videos are characterized by clear instructions, rhythmic movements, and an encouraging atmosphere that caters to both novice and advanced fitness enthusiasts.
Outside of her social media presence, Chae-hyung Yun operates under the Heungdoong-i brand, which has expanded into various fitness-related commercial avenues. She frequently collaborates with health and wellness brands in South Korea for product endorsements and fitness apparel. Her platform serves as a major hub for business inquiries regarding home training equipment, nutritional supplements, and athletic wear.
There is no reliable public estimate for her specific net worth, but she generates significant income through multiple streams. These include YouTube advertising revenue from a channel with over a million subscribers, paid brand partnerships on Instagram, and professional fees from her work as an exercise instructor. Her long-term presence in the fitness industry suggests a stable and successful commercial career.
Chae-hyung Yun is best known for her 'Heungdoong-i Home Training' series, which serves as her signature body of work. While primarily a digital creator, her influence extends to various health-focused media outlets in South Korea. Her workout programs are widely cited in lifestyle publications as effective routines for those looking to maintain fitness from the comfort of their homes.
Fans can primarily follow Chae-hyung Yun on her Instagram account @ch.yoooon for daily updates, diet tips, and short-form fitness clips. For full-length workout programs and detailed exercise tutorials, her Heungdoong-i YouTube channel is the central hub for her content. She maintains a consistent schedule across both platforms to engage with her global community of trainees.
A major milestone in her career is achieving the Gold Creator Award from YouTube, having surpassed 1 million subscribers on her joint channel. As of late 2023, her YouTube community has grown to approximately 1.34 million followers. Additionally, her personal Instagram has reached over 1.3 million followers, solidifying her status as one of South Korea's most influential fitness personalities.
Chae-hyung Yun has 1.3M followers in total, which puts this profile in the mega band (1m – 10m followers). The largest single audience is on Instagram with 1.3M followers — about 100% of the total reach.
Combined reach is the sum of followers and subscribers per platform. It is not unique people: audiences overlap, so treat it as a size indicator for shortlisting rather than a guaranteed audience.
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Here is where Chae-hyung Yun's audience actually sits, platform by platform, using the latest count we recorded on each one (last checked Oct 16, 2026).
Every handle above links to the official account, so you can open it and check the numbers yourself before you reach out.
| Platform | Followers / subscribers | Share of reach | Official handle |
|---|---|---|---|
| 1.3M followers | 100% | @ch.yoooon |
Every handle on this page links to the official account. If you are verifying Chae-hyung Yun before a deal, open the profiles directly rather than trusting screenshots — the live number is always one click away.
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Chae-hyung Yun is based in South Korea and posts in Korean. For brands that usually means the core audience follows the same market and language, with a long tail from everywhere else — big accounts rarely stay local.
The content sits in fitness & health and lifestyle, so the people watching are self-selected for those interests. That is the useful part of a niche profile: a mid-size account inside the right category often beats a much larger general account, because the audience already cares about the subject.
If you need the same audience profile in another market, the country and language lists on CreatorFanBase let you line up comparable creators side by side instead of guessing.
If you are shortlisting Chae-hyung Yun for a campaign, these are the facts worth carrying into the brief. Everything here is stored data, refreshed on a schedule rather than typed in once.
A practical sequence: check the lead platform matches where your buyers are, check market and language, open the official account to see recent posting frequency, then ask for a media kit and rate card directly.
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Chae-hyung Yun's counts come from the platforms themselves via instagram public profile and are refreshed on a schedule; the most recent check was Oct 16, 2026. When a platform blocks a read, we keep the last verified number and show where it came from instead of filling the gap with an estimate.
Large jumps are treated as suspect: a sudden drop past our safety threshold is held back for review rather than published, which is why the numbers here tend to be lower-drama than screenshots circulating elsewhere. Found something out of date? The profile links on this page go to the official accounts, so the live number is always one click away.
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Follower growth is best judged across several comparable monthly checks, not a few days of snapshots. CreatorFanBase does not yet have enough monthly history to call a reliable rise or fall for Chae-hyung Yun; the current platform totals above remain the clearest view of audience size.
CFB Rating 8.1 out of 10, and what fans think.
Fan score
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Other questions people ask about Chae-hyung Yun.
How much does it cost to hire Chae-hyung Yun? A planning estimate for one sponsored post is $11K – $27K per post.
| Deliverable | Estimated cost |
|---|---|
| Story or short mention | $4K – $10K |
| Sponsored post, Reel or Short | $11K – $27K |
| Dedicated video or integration | $20K – $49K |
| Three-post campaign package | $29K – $70K |
Send a free brief and CreatorFanBase checks availability, then negotiates the fee and terms with Chae-hyung Yun for you.
Estimates use combined public follower counts. Up to 10 million followers, we show a planning range; above 10 million, we show an open-ended starting estimate because campaign scope drives the final fee.
Agree deliverables in writing, check past brand work for conflicts, and agree how results are measured. Rates on this page are planning estimates from public follower counts, not quotes. Starter is $1 to search the full directory.
We handle outreach, rate negotiation, contracts and content delivery with Chae-hyung Yun and other creators for you — done-for-you.
Free to ask — no payment upfront. Booking is subject to the creator's availability and agreement, and rates are confirmed by the creator.
Business email: most creators publish a business address in their profile bio or on their website. We only list contact details a creator has made public themselves, so where no public address exists, use a direct message on the platform above.
Share your brief once. We pass it on through the creator's public business channels.
Jump to the rankings, countries and platforms this profile belongs to.
How the numbers on this page are collected and what they mean.
Instagram's official product and creator-tools reference.
The US regulator's rules on disclosing a paid partnership.
Official country-level internet adoption data.
Straight answers to the questions people search for.
Chae-hyung Yun has about 1.3M Instagram followers in the latest snapshot stored on this profile. Quote the profile and the date together. Use the Instagram row when the brief is on that network. A newer snapshot replaces this one on regular updates described on the methodology page.
For planning, Chae-hyung Yun sits around $11K – $27K per sponsored post. The range uses the combined public follower count across the platforms on this profile, with the Instagram rate band. It is an estimate, not a quote. Ask Chae-hyung Yun for the current fee. How the range is built is on the methodology page.
Chae-hyung Yun is marked verified on CreatorFanBase. The badge is about the stored handles matching the public accounts, and it is the set of links to use for a collaboration. Flag a wrong handle on the contact page.
South Korea is the country on Chae-hyung Yun's profile. Use it when you need creators from that market, then open a recent post if the city matters. A city is not stored separately. The wider set of creators tagged South Korea is on the country list.
Chae-hyung Yun is tagged as Korean-speaking on this profile. Use that when the script or the voiceover has to be in Korean, then watch a recent post to confirm the mix. One tag can cover more than one language in the work. Other Korean creators can be filtered in search.
The category stored for Chae-hyung Yun is Fitness & Health. That is the niche label on the profile, not a promise that every post matches a brief. One label covers a lot of styles. Watch a recent piece of work, then compare others on the Fitness & Health category.
Use the collaboration form on this profile to send Chae-hyung Yun your campaign brief, or contact the official account directly. Include the deliverable, budget and timing; the CreatorFanBase team reaches out and negotiates the deal for you. Discovery plans are on pricing.
Other published creators near Chae-hyung Yun are in the similar creators section on this page, above these questions. If you want a longer list in Fitness & Health, use the Fitness & Health category and keep the country if the market matters. The posts, not the label, decide the fit.
The newest follower snapshot stored for Chae-hyung Yun is 16 October 2026. Counts are updated regularly, and a missing new reading keeps the previous date rather than inventing one. Put that date next to the number if you quote it. The schedule is on the methodology page.
Chae-hyung Yun is tagged Fitness & Health, South Korea in the directory, so that is the audience a brand can start from. The tag is a filing label, not a sales result, so watch a recent post before you brief anyone. Then compare a few others with the same tag on the Fitness & Health list.
You can ask. Send a brief from the collaboration form on this profile with the product, the deliverable and your dates, and the CreatorFanBase team reaches out to Chae-hyung Yun and negotiates for you. Fitness audiences respond to routines, challenges and progress formats, so pitch a format that matches recent posts. Chae-hyung Yun decides whether to accept. See the managed option on pricing.
Our planning estimate for one sponsored post from Chae-hyung Yun is $11K – $27K. Stories usually cost less than a feed post or reel, and usage rights, exclusivity and extra posts raise the fee. It is an estimate, not a quote — Chae-hyung Yun sets the real rate. The method is on the methodology page.
Chae-hyung Yun is one of the Fitness & Health profiles in South Korea on CreatorFanBase. Open the Fitness & Health category and filter by country, language and follower size to see others ranked by audience. Every filter and follower count stays open; names after the first 5 results need a plan.
Start in search with the Fitness & Health category and South Korea as the country, then set a follower range that fits the budget. Shortlist a few names like Chae-hyung Yun, compare their platform split, and send a brief — or let CFB Agency run outreach and negotiation for you.
Chae-hyung Yun is tagged Korean on this profile, so a script in Korean is a natural starting point. Check a recent post to confirm the language mix before you brief. Other Korean-speaking creators can be filtered in search.
We do not publish private management contacts. Use the official links on this profile, or send a brief from the collaboration form and the CreatorFanBase team will reach Chae-hyung Yun's team for you and negotiate the deal. Plans and the managed option are on pricing.
The official accounts we have for Chae-hyung Yun are the links on this profile, starting with Instagram. Use those when you write, and compare the handle with the channel you already know. Or send a brief from the profile and the CreatorFanBase team will reach out and negotiate for you. A wrong link can be flagged on the contact page.
Chae-hyung Yun has 1 platform with a stored follower or subscriber count on this profile, led by Instagram. A missing network means we do not have a public count for it yet, not that the account cannot exist. The rows are listed on the profile. Browse a single network from the creator lists.
Not through a forum post. Send a brief from the collaboration form on this profile and the CreatorFanBase team will reach out to Chae-hyung Yun for you. Use the official links on the profile and ask Chae-hyung Yun for a fee. Plan prices for directory access are separate, on the pricing page.
Open this profile and save Chae-hyung Yun while you compare a few other names. Saving a name does not email the creator. Growth and Agency include unlimited shortlists. Starter includes three. The plan differences, starting at $29 a month, are on the pricing page.
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