OscDrax vs Performance Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OscDrax
Create unique sounds by drawing waveforms with your finger. This app allows you to combine four independent tracks for complex soundscapes, offering professional controls for detailed sound design.
- Draw custom waveforms
- 4-track multi-timbral synthesis
- High-resolution waveform editor
- Adjustable frequency range (20Hz-20kHz)
- Portamento effect
- Individual track volume control
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Your Fingertips Create New Sounds OscDrax is an innovative iOS waveform synthesizer that enables professional sound design through intuitive touch controls. Simply draw waveforms with your finger to instantly create original tones. Combine four independent tracks to build complex, rich soundscapes. Unleash Creativity with the Waveform Editor Our waveform drawing system maximizes the potential of touchscreen technology. With 512-point high resolution, accurately reproduce any waveform you imagine. Classic waveforms like sine, triangle, square, and sawtooth are also available at a single tap. Designed for everyone from beginners to professionals. 4-Track Multi-Timbral Synthesis Each track operates completely independently with its own waveform, frequency, and volume settings. Layer multiple tracks simultaneously to create thick, complex tones impossible with a single oscillator. Professional Controls Frequency Adjustment (20Hz-20kHz) Full coverage of human hearing range. Logarithmic scale slider provides musically natural control from bass to treble. Portamento Function (0-1000ms) Smooth glide effect between pitches. Faithfully reproduces the warm expression of analog synthesizers. Individual Volume Control Fine-tune each track's volume from 0-100%. Achieve ideal balance with precision mixing.
Performance Clock
This app helps musicians manage tempo and setlists hands-free during performances. It automatically transitions between BPMs with customizable ramp curves and syncs with other Link-enabled devices. Build and loop setlists, customize visuals, and use it as an AUv3 plugin within your DAW.
- Hands-free tempo changes
- Setlist management
- Ableton Link synchronization
- Customizable ramp curves
- AUv3 plugin support
- Visual customization
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PortaTempo is a performance clock and setlist manager built for musicians whose hands are already full. Instead of reaching over to nudge a tempo knob or button between songs, set your next BPM and let PortaTempo glide you there automatically - so both hands stay on the gear that's actually driving the room. STAY LOCKED TOGETHER • Sync tempo instantly with any Ableton Link-enabled app or device on your local network - DAWs, other Link apps, sequencers, and Link-enabled hardware like Eurorack modules - with no cables and no manual re-syncing • Join or leave a Link session at any time without interrupting playback CHANGE TEMPO, HANDS-FREE • Move from one BPM to the next smoothly using linear, exponential, or logarithmic ramp curves • Or make the change instantly - a hard cut from one tempo to another when that is what the moment calls for • Set the ramp duration in seconds, beats, or bars, then keep both hands on your rig instead of stopping to adjust tempo by hand BUILD YOUR SET • Save your go-to tempos as Favorites for instant recall - or start from 16 built-in presets spanning Ambient to Speedcore (20-300 BPM) • Build a full Setlist with a target tempo for every song, and let PortaTempo advance and ramp automatically as you move through the set • Loop your Setlist to create a rhythmic tempo sway - swing between 75 and 80 BPM every 30 seconds for an evolving, hypnotic groove • Get a local notification with a customizable advance warning before each scheduled tempo change, so you are never caught off guard MAKE IT YOURS • Customize the colors for current tempo, target tempo, and highlights to match your rig or your set • Fine-tune the ramp glow effect with 7 sliders covering radius, intensity, pulse speed, movement, and fade timing, plus 5 animation styles to choose from • Hit randomize to instantly reshuffle every glow parameter - or turn on auto-randomize to get a fresh look on every ramp USE IT INSIDE YOUR DAW • PortaTempo also ships as an AUv3 plugin, bringing the same tempo control directly into your favorite AUv3-compatible host EVERYTHING YOU NEED, NOTHING YOU DON'T • One purchase unlocks PortaTempo on iPhone, iPad, and as an AUv3 plugin • No subscription - ever • Family Sharing enabled, so your household can share one purchase • Runs in the background so your clock keeps going while PortaTempo is out of view Questions? help@synthfamdsp.com Join our community on Discord https://www.synthfamdsp.com/#community
Screenshots
Verdict
The clearest difference is rating: Performance Clock at 5.0 against OscDrax's 4.0. OscDrax's advantage is update cadence (daily vs every 3 weeks) and price ($0.49 vs $4.99). On review sentiment, ratings volume, ads and in-app purchases 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
OscDrax costs $0.49 and Performance Clock $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Performance Clock holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
OscDrax ships an update daily, Performance Clock every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.
| Parameter | OscDrax | Performance Clock |
|---|---|---|
| Price | $0.49 — better | $4.99 |
| Rating | 4.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Daily — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 1 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Junpei Wada | Joshua Totemwongse |
Customer experience
OscDrax
Performance Clock
In-app purchases
OscDrax
No in-app purchases
Performance Clock
No in-app purchases









