SyncStep vs OSE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SyncStep
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* SyncStep — Learn Dances Faster Master choreography with perfectly synced videos. SyncStep helps dancers compare, learn, and refine moves by placing two clips side by side and automatically syncing their audio. Load your reference video and your practice take, then zoom or track to spotlight the dancer you want—no editing required. * Compare Mode (Analyze Two Videos Together) **One-Tap Audio Sync: Instantly align beats between videos for accurate timing comparison. **Three View Modes: Choose from Zoom (manual pinch-to-zoom), Track (AI tracking with boxes), or Focus (tracking with originals hidden). **Split View: Watch two dancers side-by-side with smart cropping and adjustable zoom. **Ghost Mode Overlay: Merge both videos into a transparent overlay to reveal subtle differences in timing, angles, and form. **Smart Auto-Zoom: Keeps small dancers readable (wide zoom range when unlocked). **Track Mode: Draw a box—SyncStep automatically follows the dancer through the video. Perfect for duets, groups, or formations. **Tap to Hide/Show Controls: Tap anywhere on video to hide all UI for distraction-free viewing and screen recording. **Speed Control: Slow down or speed up both videos for study and review. **Nudges & Fine-Tuning: Manually adjust timing offsets for frame-accurate precision. **Mirror Mode: Flip Video A horizontally in Zoom mode for easier comparison. * Learn Mode (Your Solo Practice Studio) Focus on one video with tools designed for personal practice: **Follow-Along Recording: Open a front-camera preview, use a short countdown, and record yourself while your reference video plays. Drag the picture-in-picture preview and pinch to resize; the main video stays large. Saves your camera clip to Photos (reference video is not merged into the same file). **Practice Slots: Save custom loops and jump between tricky segments instantly. **Speed Control: Slow down or speed up playback to master technique. **Mirror View: Flip your video to match choreography orientation. **Clean Controls: Smooth scrubbing, looping, and rewinding without clutter. **Perfect for self-training and reviewing your own performance. * Guidance & Tools **Languages: Choose Follow System, English, or 简体中文 in Settings. **How to Use: Step-by-step guide for Compare and Learn, including follow-along recording. **Pro Tips: Quick starred tips inside the guide. **Optional Auto-Tips when you need a nudge. **Info buttons for fast explanations where it matters. *Clean, Dark Design Built for rehearsals, late-night practice sessions, and long study periods. Optimized layouts for both iPhone and iPad, in portrait or landscape. * Perfect For **Learning choreography and formations **Rehearsal review and technique refinement **Dance teachers preparing demos **Creators making comparison or practice clips * SyncStep Pro Unlock unlimited access to advanced tools, Ghost Mode, Smart Auto-Zoom, enhanced tracking, and future upgrades. Manage your subscription anytime in Settings. * Privacy & Support Your videos stay private—SyncStep never uploads or shares them. All processing happens securely on your device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1CwFKSKHbcdqwdiEWDFRhjnX_Wa5aEg22NkZ5XUIylgs
OSE
A pocket-sized toolkit for musicians featuring a multi-touch synth, MIDI recorder, piano roll editor, tuner, metronome, and audio tools. It complements desktop Digital Audio Workstations with professional-grade DSP effects and editing capabilities.
- Expressive multi-touch synth with DSP effects
- MIDI recorder and piano roll editor
- Chromatic tuner with reference tones
- Metronome with savable presets
- Audio recorder with real-time effects
- Audio editor with restoration tools
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Not a toy. Music tools that work. OSE (Outhentic Sound Engine) is an instrument and toolkit for people who play. Synth, recorder, piano roll, metronome, tuner — eight focused tools that fit in your pocket and complement the desktop DAW you already use, rather than replace it. Everything runs on your device. PLAY • Expressive multi-touch synth with a real DSP chain — filters, envelopes and effects you hear live. • 140+ instruments and presets across keys, bass, pads, leads, plucks, drums and more. • Drum-pad, piano and split/layer layouts. • USB and Bluetooth MIDI keyboards. RECORD & EDIT • Record your playing as MIDI and arrange it in a piano-roll editor — move, quantize, transpose and edit velocity. • Audio recorder with a real-time effects monitor: hear your effects while you play. • Audio editor with restoration tools — declick, declip, denoise, normalize — plus cut, fade, speed and pitch. PRACTICE & MEASURE • Chromatic tuner — fast and accurate, with reference tones. • Metronome with simple and complex meters, subdivisions and savable presets. • Signal generator — sine and other waveforms, sweeps and a built-in timer. • Sound-level meters — SPL, FFT spectrum, spectrogram and peak hold. THE EIGHT TOOLS Synth · Recorder · Piano roll · Tuner · Metronome · Signal generator · Meters · Audio editor
Screenshots
Verdict
The clearest difference is in-app purchases: OSE at none against SyncStep's 1. SyncStep's advantage is ads (none vs shown). On price, update cadence, device support 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. SyncStep sells 1 in-app purchase, starting at $2.99 per month. OSE asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 17, 2026 and October 11, 2026 respectively.
| Parameter | SyncStep | OSE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (6 ratings) — better |
| Number of ratings | — | 6 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | Yue Wu | Outhentic EOOD |
In-app purchases
SyncStep
- SyncStep+$2.991 Month
OSE
No in-app purchases









