Catch Flex vs RhythmJunction
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Catch Flex
A full-body camera rhythm game where your movements control the action. Play through various challenges, create your own levels, and compete with others, all without touching a button.
- Full-body tracking with a single camera
- Gesture-controlled menus
- Multiple gameplay mechanics (cut, rings, balls, stomp, slide)
- Customizable difficulty and no-fail mode
- Local split-screen versus mode
- Browser-based level editor
- Privacy-focused on-device tracking
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Your body is the controller. Catch Flex is a dance rhythm game that tracks your whole body with one camera: no VR headset, no gamepad, no wearables. Even the menus are gesture-controlled, so you never touch a button. Stand up, clear some space, and dance to the beat. MOVE TO HIT • Slash — cut blocks in the arrow's direction • Catch — snag rings with a hand or foot • Kick — boot the balls, or knock them back with a hand • Stomp — hit the floor marker right on the beat • Slide — ride the trail to the end • Dodge — duck, lean, or step over obstacles Every song mixes the moves differently, and your whole body plays, not your thumbs. VOL. 1: TEN HAND-CHARTED TRACKS Original dance music, 87 to 150 BPM: house, electro, techno. Charted for what a real body can do: everything within reach, no jumping. Play a few back to back and it's a workout. Not chasing a score? Switch on no-fail mode and just move through the whole song. SOLO OR VERSUS Chase the global leaderboards on your own, or go head-to-head in local split-screen Versus. Achievements track you from your first song to an S rank on ten different tracks. MAKE YOUR OWN LEVELS Catch Flex Editor runs in your browser — nothing to install, nothing to buy. Bring any song, chart the moves yourself, and load the level into the game. A level is a single file: open it on your device, or send it over your Wi-Fi from any browser, which is how levels reach a TV. You'll find the editor on the Catch Flex website. WHAT YOU NEED Room to move, good lighting, your full body in frame, clothes that don't blend into the background. If your device has a camera, that camera is enough. If it has none — on a TV or a console — the free Catch Flex: Controller app turns your phone into one over your Wi-Fi. Versus needs one camera or phone per player. Either way, the bigger the screen, the better every move reads from across the room. BODY TRACKING STAYS LOCAL Tracking runs locally, on your own hardware, and camera images are never saved or uploaded. When your phone is the camera, only movement data crosses your own local network — the video never leaves the phone. FREE TO START The first track is yours to keep — play it as often as you like. One purchase unlocks the rest of Vol. 1: nine more tracks, Versus and your own levels — no ads, no subscriptions, yours for good. See you on the leaderboards.
RhythmJunction
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Rhythm Junction은 음악에 맞춰 노트를 두드리는 4레인 리듬 게임에 "분기 선택"이라는 새로운 재미를 더한 게임입니다. 곡이 진행되다 분기 구간이 오면 화면 양쪽에 문이 나타납니다. 고개를 왼쪽·오른쪽으로 살짝 돌리면 전면 카메라가 얼굴 방향을 인식해 어려운 길(고득점)과 안전한 길 중 원하는 쪽을 선택합니다. 얼굴 인식이 어려운 환경을 위한 터치 대체 입력도 준비되어 있습니다. 특징 • TAP·HOLD·동시 노트가 어우러진 4레인 리듬 플레이 • 분기 구간마다 달라지는 채보 — 같은 곡도 매번 다른 길 • 일렉트로닉·하우스·록·러닝 비트 등 24곡 수록, 곡마다 3단계 난이도 • 판정·콤보·랭크와 곡별 최고 기록 저장 • 온라인 랭킹 — 곡·난이도별로 전 세계 플레이어와 기록 경쟁 • 업적 보상 — S+ 랭크, 퍼펙트 달성으로 POINT 획득 • POINT로 잠긴 곡 해금 — 플레이만으로도 모든 곡을 열 수 있습니다 • 오디오·입력·표시 오프셋 세부 보정 지원 로그인 없이 게스트로 바로 플레이할 수 있습니다. Apple·카카오·네이버 계정으로 로그인하면 기록이 서버에 저장되고 온라인 랭킹과 POINT 상점을 이용할 수 있습니다. 얼굴 인식은 기기 안에서만 처리되며 영상이 저장되거나 전송되지 않습니다. 광고가 없습니다. POINT는 앱 내 구입으로도 충전할 수 있습니다 (선택 사항).
Screenshots
Verdict
The clearest difference is update cadence: RhythmJunction at every 6 days against Catch Flex's fortnightly. Catch Flex's advantage is device support (4 vs 2). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Catch Flex ships an update fortnightly, RhythmJunction every 6 days. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.
| Parameter | Catch Flex | RhythmJunction |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple TV — better | iPhone, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 491 MB | 289 MB |
| Age rating | 4+ | 4+ |
| Developer | Vilegacy | KYUKEON PARK |
In-app purchases
Catch Flex
No in-app purchases
RhythmJunction
No in-app purchases









