Comparison

Mult Controller vs ARCH Cam

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

Head to head
About

Mult Controller

Features
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Mult Controller is a canvas-based OSC and MIDI controller for iOS. Build your own control surface โ€” place knobs, pads, sliders, and sensor-driven widgets on an open canvas, then lock it and play. CANVAS AND SESSIONS Name a session, choose OSC or MIDI, set a destination, and a blank canvas appears. Toggle edit/performance mode with the lock button. In edit mode, drag and configure components freely. In performance mode, the layout freezes and controls go live. Sessions save automatically as JSON files visible in Files.app under Mult Controller โ†’ Sessions/. Run multiple sessions simultaneously โ€” each has its own transport destination. 11 BUILT-IN COMPONENTS Knob โ€” rotary dial, continuous output. Slider โ€” linear fader in Small, Medium, and Large. Button โ€” momentary or latch; fires MIDI Note or CC. Switch โ€” persistent on/off toggle. XY Pad โ€” two-axis touchpad, two independent values. Physical Pad โ€” XY pad with real momentum physics; release and the point coasts. Image Pad โ€” samples RGB from a photo; streams red, green, blue as three values. Gyro Pad โ€” device tilt drives XY output automatically, no touch needed. AR Coordinates โ€” ARKit tracks position in space and emits X, Y, Z continuously. Compass โ€” magnetometer outputs heading in degrees (0โ€“360). Envelope Follower โ€” microphone amplitude drives a control channel in real time. OSC Sends OSC 1.0 over UDP. Type a destination IP and port โ€” no pairing needed. Broadcast mode reaches every device on the subnet. Choose a coalescing rate of 30, 60, or 120 Hz. Compatible with Ableton Live, Max/MSP, SuperCollider, QLab, TouchDesigner, Resolume, and any OSC-capable software. MIDI Switch a session to MIDI and components send over CoreMIDI 2.0. Connect via Bluetooth MIDI or Network MIDI over Wi-Fi. Each component has its own channel, CC number, message type, note, and velocity โ€” fully configurable per control. PERMISSIONS MultOSC requests permissions only for the components that need them. iOS will prompt you the first time a component is activated. To grant or revoke permissions manually, go to Settings โ†’ Privacy & Security on your device. Camera โ€” required by AR Coordinates to run ARKit world tracking. Without it, the component places on canvas but outputs nothing. Microphone โ€” required by Envelope Follower to read amplitude. Without it, the output stays at zero. Bluetooth โ€” required to discover and pair BLE MIDI instruments and controllers. Local Network โ€” required for OSC UDP packets and Network MIDI over Wi-Fi. Without it, no messages leave the device. Location (When in Use) โ€” required by Compass to read magnetometer heading via CoreLocation. Without it, the needle stays at 0ยฐ. If a permission is denied, the affected component stays placed on the canvas but its output freezes. Re-enable the permission in Settings and the component resumes immediately โ€” no restart needed. PRIVACY MultOSC collects no data โ€” no analytics, no crash reporters, no usage tracking. Session files are plain text in your Documents folder. The only outbound traffic is the OSC and MIDI you configure yourself.

About

ARCH Cam

Features
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Arch Recap is a spatial memory archive. Screenshots and photos navigable in 3D Arches. AI search on-device. No servers, no accounts. Stay offline. Recapture your moments. - Type "recipe for sweet & sour chicken" or "flight from August". An on-device Gemma 3n model surfaces matches instantly. - Arches. Spatial rooms for the moments you revisit. Pinch out to fly between them. Each keeps its own layout, tile size, and name. - On-device AI. Google's Gemma 3n via MediaPipe, running entirely on iPhone. - Spatial layouts. Sphere, helix, cube, cylinder, rings, waves. - Photo notes. Tap under any photo in an album Arch to leave a translucent caption. - Long-press. Drag a screenshot to share or delete. No menus. - Calendar. Ask "add this", confirm in the native editor. - 100% on-device. No accounts. No cloud. Your moments stay yours.

Screenshots

Mult Controller4 screens
ARCH Cam3 screens

Verdict

The call

Mult Controller and ARCH Cam 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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Mult Controller versus ARCH Cam: the parameters behind the verdict, then further details
ParameterMult ControllerARCH Cam
PriceFreeFree
Update frequencyโ€”Every 5 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details โ€” not scored
Size3 MB39 MB
Age rating4+4+
Developerๆทžๅ…ƒ ็ŸณBob Van den Audenaerde

In-app purchases

None

Mult Controller

No in-app purchases

None

ARCH Cam

No in-app purchases

Questions

Is Mult Controller free?
Mult Controller is free to download, with no in-app purchases.
Is ARCH Cam free?
ARCH Cam is free to download, with no in-app purchases.
Do Mult Controller or ARCH Cam have ads?
Neither Mult Controller nor ARCH Cam shows ads.

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