Comparison

TV3 vs SyncStep

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

Head to head
About

TV3

Create iconic acid basslines with this powerful yet user-friendly synthesizer. Inspired by the classic TB-303, it offers dual oscillators, a resonant low-pass filter, versatile distortion, and a pattern generator for endless musical possibilities.

Highlights
  • Dual Oscillators (Square/Sawtooth)
  • 24 dB/oct Low-Pass Filter
  • Envelope Controls
  • Versatile Distortion Modes
  • Quick Sound Randomization
  • Pattern Generator
  • MIDI Export
Read full description

Introducing TV3 - Acid Synth, the swiftest acid bassline synth. Inspired by the legendary TB-303, TV3 combines a user-friendly interface with handy features to fast-track your acid jams. Key Features: - Dual Oscillators: Main and Sub oscillators with selectable Square and Sawtooth waveforms. - 24 dB/oct Low-Pass Filter: Resonant, non-self oscillating filter with adjustable cutoff and resonance controls. - Envelope Controls: Fine-tune your sound with parameters for accent, decay and envelope modulation. - Versatile Distortion: Add character to your basslines four distinct modes—Saturation, Saturated Wavefolding, Fuzz, and Nock. - Quick Randomization: Tap on Acid Boy for total sound randomization - Pattern Generator: Instant generation of endless patterns with adjustable complexity, length, scale, and key. - Pattern Editor: edit your generated sequences with pitch, accent, gate and slide controls. - MIDI Export: Export your patterns as MIDI files. TV3 offers a simple and fun workflow to help you produce iconic acid sounds on your iOS device. Download TV3 Acid Synth today and unleash the power of acid basslines at your fingertips.

About

SyncStep

Features
Read full description

* 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

Screenshots

TV34 screens
SyncStep4 screens

Verdict

The call

The clearest difference is price: SyncStep at Free against TV3's $6.99. SyncStep also leads on update cadence (every 3 weeks vs every 10 months). TV3's advantage is in-app purchases (none vs 1). On ads, 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

CostPrice · In-app purchases · Ads · Monetization

SyncStep is free to download; TV3 costs $6.99 up front. SyncStep sells 1 in-app purchase, starting at $2.99 per month. TV3 asks for nothing beyond the download.

UpkeepUpdate frequency

TV3 ships an update every 10 months, SyncStep every 3 weeks. The most recent releases landed on September 15, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
TV3 versus SyncStep: the parameters behind the verdict, then further details
ParameterTV3SyncStep
Price$6.99Free — better
Rating4.9 (12 ratings) — better—
Positive reviews81.8% of reviews—
Number of ratings12 — better—
Update frequencyEvery 10 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size220 MB69 MB
Age rating4+4+
DeveloperImaginando LdaYue Wu

In-app purchases

None

TV3

No in-app purchases

1 purchases

SyncStep

Subscriptions1
  • SyncStep+$2.991 Month

Questions

Is TV3 free?
TV3 costs $6.99, with no in-app purchases.
Is SyncStep free?
SyncStep is free to download, with in-app purchases available.
Do TV3 or SyncStep have ads?
Neither TV3 nor SyncStep shows ads.
Which is updated more often, TV3 or SyncStep?
TV3 ships an update every 10 months, and SyncStep every 3 weeks. Most recently, TV3 was updated on September 15, 2026 and SyncStep on September 13, 2026.

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