Comparison

AI Prompt Library vs Mult Controller

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

Head to head
About

AI Prompt Library

Features
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PromptiFex is a library of ready-made AI prompts you can actually use. Find a prompt, fill in the blanks, and copy it in one tap. No prompt engineering required. Every prompt is built to be filled in: pick one, complete a few short fields, and it is ready to paste into ChatGPT, Claude, Gemini or any AI tool. WHAT YOU GET * Ready-made prompts by category: Business, Marketing, Writing & Content, Coding & Development, Educational, Career & Growth, Productivity, Data Analysis, Visual & Arts, Legal & Compliance, Health & Wellness, Self Improvement. * Fill in the blanks, so you never start from an empty box. * Premium prompts: subscribers unlock a growing collection of premium prompts, marked with a crown. * One-tap copy and share, to use your prompt anywhere you already work. * Your own library: save what works into collections and find it again in seconds. * Publish and follow: write your own prompts, mark them as Premium, share them, and follow creators you like. Published prompts are reviewed before they go public. * Browse featured, trending and new prompts, or search prompts, categories and creators. WHO IT IS FOR Marketers, writers, founders, students, designers and developers who use AI every day and want better results without learning prompt engineering. Free to start. Free prompts stay free. Subscription Info: Auto-renewable subscriptions available: Regular ($4.99/mo), Pro ($9.99/mo), Pro Max ($19.99/mo). Payment will be charged to your Apple ID account. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID Account Settings. Terms of Use: https://www.promptifex.com/terms Privacy Policy: https://www.promptifex.com/privacy

About

Mult Controller

Features
Read full description

Mult Controller is a canvas-based OSC and MIDI controller for iOS. Build your own control surface — 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 → Sessions/. Run multiple sessions simultaneously — each has its own transport destination. 11 BUILT-IN COMPONENTS Knob — rotary dial, continuous output. Slider — linear fader in Small, Medium, and Large. Button — momentary or latch; fires MIDI Note or CC. Switch — persistent on/off toggle. XY Pad — two-axis touchpad, two independent values. Physical Pad — XY pad with real momentum physics; release and the point coasts. Image Pad — samples RGB from a photo; streams red, green, blue as three values. Gyro Pad — device tilt drives XY output automatically, no touch needed. AR Coordinates — ARKit tracks position in space and emits X, Y, Z continuously. Compass — magnetometer outputs heading in degrees (0–360). Envelope Follower — microphone amplitude drives a control channel in real time. OSC Sends OSC 1.0 over UDP. Type a destination IP and port — 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 — 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 → Privacy & Security on your device. Camera — required by AR Coordinates to run ARKit world tracking. Without it, the component places on canvas but outputs nothing. Microphone — required by Envelope Follower to read amplitude. Without it, the output stays at zero. Bluetooth — required to discover and pair BLE MIDI instruments and controllers. Local Network — required for OSC UDP packets and Network MIDI over Wi-Fi. Without it, no messages leave the device. Location (When in Use) — required by Compass to read magnetometer heading via CoreLocation. Without it, the needle stays at 0°. 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 — no restart needed. PRIVACY MultOSC collects no data — 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.

Screenshots

AI Prompt Library4 screens
Mult Controller4 screens

Verdict

The call

The clearest difference is in-app purchases: Mult Controller at none against AI Prompt Library's 9. On price, 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

Both are free to download. AI Prompt Library sells 9 in-app purchases, starting at $4.99 per month. Mult Controller asks for nothing beyond the download.

Scorecard1 real difference · 7 level
AI Prompt Library versus Mult Controller: the parameters behind the verdict, then further details
ParameterAI Prompt LibraryMult Controller
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size56 MB3 MB
Age rating4+4+
DeveloperAmdose LTD淞元 石

In-app purchases

9 purchases

AI Prompt Library

Subscriptions6
  • Regular Monthly3 Days trial$4.991 Month
  • Pro Monthly3 Days trial$9.991 Month
  • Pro Max Monthly3 Days trial$19.991 Month
Show 3 more
  • Regular Yearly3 Days trial$49.991 Year
  • Pro Yearly3 Days trial$100.991 Year
  • Pro Max Yearly3 Days trial$200.001 Year
One-time3
  • 50 Token Pack$4.99
  • 100 Token Pack$9.99
  • 200 Token Pack$19.99
None

Mult Controller

No in-app purchases

Questions

Is AI Prompt Library free?
AI Prompt Library is free to download, with in-app purchases available.
Is Mult Controller free?
Mult Controller is free to download, with no in-app purchases.
Do AI Prompt Library or Mult Controller have ads?
Neither AI Prompt Library nor Mult Controller shows ads.

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