Comparison

RasterFX vs Pathfinder Sketch

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

Head to head
About

RasterFX

Features
Read full description

Make any sound move. RasterFX is a playable modular multi-effects processor for iPhone and iPad. Use it standalone with a microphone, an imported audio file or built-in signals โ€” or load it as an AUv3 audio effect in AUM, GarageBand, Logic Pro for iPad, Loopy Pro, Cubasis and other Audio Unit hosts. BUILD YOUR EFFECT CHAIN Choose from Filter, Delay, Drive, Reverb, Grain, Repeat, Motion and Dynamics. Arrange up to six plates in series or split them into parallel A/B paths. Reorder the chain and the sound changes with it. MODULATE ANY CONTROL Patch LFOs, envelope followers, random and chaos sources, step sequencers, MIDI, macros, the XY pad or device tilt to any control. Create up to 16 modulation lines, with live arcs showing exactly how the sound is moving. PERFORM THE PATCH Morph between four snapshots on the XY pad. Turn eight macros. Hold four momentary throws for stutter, sweep, reverse and freeze. RasterFX is built to be played with one hand, not programmed and left alone. GENERATE, LOCK, EVOLVE Nudge a patch, reshape it or roll a new one. Lock the parts you want to keep, undo any result and save the seeds worth returning to. Evolve lets the patch drift over time while staying anchored to the sound you chose. SEE WHAT YOU HEAR Every effect has its own live visualizer. The CRT and halftone interface makes filters, delay taps, grains, dynamics and modulation visible without turning the screen into a wall of meters. RECORD THE RESULT Record the processed output to WAV, rename takes and share them from the app. FREE TO START. PRO ONCE. Free includes all eight effects, all modulation sources, every factory preset, three plates, four modulation lines and 60-second recordings. No ads, account, watermark or reduced audio quality. RasterFX Pro is a one-time purchase โ€” not a subscription. It unlocks six plates, 16 modulation lines, split routing, XY snapshot morphing, Evolve, A/B compare, unlimited recording length and your own saved presets. Your saved sound always plays back exactly as created, even if it uses Pro features; Free limits editing, never playback. Made for headphones, late at night.

About

Pathfinder Sketch

Features
Read full description

Pathfinder Sketch turns your phone into a hands-on controller for the free Pathfinder plugin running on your computer โ€” and a full playable instrument on its own. Draw a path across a living field of glowing spheres and Pathfinder plays every sound it crosses. Pass the phone around the room and up to four people jam together on the same field, each drawing their own line in their own color. NO COMPUTER? NO PROBLEM. Tap "Try the Demo" for a complete, playable session that runs entirely on your phone โ€” a real drum kit scattered across the field, ready to draw through. It's the whole idea in your hand, free, with nothing to install. WITH THE FREE PATHFINDER PLUGIN: - Pair in seconds by scanning the on-screen QR code, or tap your computer from the list of sessions on your network. - Draw paths to play the plugin's field live from your phone. - Up to four players share one session โ€” first come, first served, with spectators promoted into open slots automatically. - Monitor the mix through your phone with headphones, streamed low-latency over your own Wi-Fi. - Everything musical stays on your local network. Nothing about your sessions is sent anywhere. TRY FREE, THEN UNLOCK: Sketch is free to download and comes with a 7-day trial of the full performance suite. A one-time Pro unlock ($19.99, no subscription) keeps arp and gate, scenes, TURNS mode, and unlimited patterns โ€” and it's shared with your whole Family Sharing group. Get the free Pathfinder plugin for macOS and Windows at audiotechhub.com. No accounts. No ads. Your jam never leaves your own network.

Screenshots

RasterFX4 screens
Pathfinder Sketch2 screens

Verdict

The call

RasterFX and Pathfinder Sketch are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. RasterFX sells 1 one-off in-app purchase and Pathfinder Sketch sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
RasterFX versus Pathfinder Sketch: the parameters behind the verdict, then further details
ParameterRasterFXPathfinder Sketch
PriceFreeFree
Update frequencyโ€”Weekly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS17.016.0 โ€” better
Further details โ€” not scored
Size5 MB2 MB
Age rating4+4+
DeveloperChih Han LinAudio Tech

In-app purchases

1 purchases

RasterFX

One-time1
  • RasterFX Pro$3.99
1 purchases

Pathfinder Sketch

One-time1
  • Sketch Pro$19.99

Questions

Is RasterFX free?
RasterFX is free to download, with in-app purchases available.
Is Pathfinder Sketch free?
Pathfinder Sketch is free to download, with in-app purchases available.
Do RasterFX or Pathfinder Sketch have ads?
Neither RasterFX nor Pathfinder Sketch shows ads.

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