Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
The MKSensation Xtreme builds on our renowned MKSensation plugin, delivering the most accurate sampled representation of the classic MKS-20 piano module
$24.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for MKSensation Xtreme: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited track selection compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription model can deter casual users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent audio playback quality
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The MKSensation Xtreme builds on our renowned MKSensation plugin, delivering the most accurate sampled representation of the classic MKS-20 piano module. Rooted in gospel music, the MKS-20 has been a staple in countless gospel albums, often stacked alongside JV-Series, Motifs, and other vintage racks for a rich, dynamic sound. Traditionally, musicians relied on complex MIDI setups to blend and control layers in real-time. MKSensation Xtreme replaces decades of hardware, offering the same powerful layering and live performance flexibility in a single app. With the power of modern iPads and M1 chips, MKSensation Xtreme provides the equivalent of eight Pure Synth Platinums. Each of the eight sound slots features independent AMP, Filter, Control, LFO, and effects, plus 8-insert effect slots (with up to five effects per slot), along with Global and Master effects. All effect buses are easily controlled via red faders, and, as with all our apps, full MIDI learn functionality is included. Designed for live performance, the app not only delivers our signature sounds but also allows you to host your own AUv3 instruments and effects. You can seamlessly integrate external sounds, run them through our filters, AMP, LFO, and modulation, and enjoy the ultimate flexibility—whether using MKSensation Xtreme’s sounds or purely its powerful hosting capabilities. iPad Version vs Desktop The iPad version is identical to the desktop version as far as features, synthesis, and functionality. The only difference is in sound: We removed the second version of the MKS sounds, so that there is only one main version of the MKS soundest, instead of two different versions on the desktop. The quality is the same. General Specs • 12 GB Lossless Compression) • 23,419 Samples • 362 Sampled Sounds • 21 Analog Modeled Wavetables • 14 Analog VA Waveforms • 74 Presets • 26 High Quality Effects Featuring Overloud’s VKFX ------- Highlights • Store and stream sounds internally or on external hard rive • Ability to Load AUv3 in place of Sound Slots • 8-Fully independent Sound Sources with their own independent (AMP, Filter, LFO, Mod, and effects) • Seamless Sound Switching • Two versions of Power Grand • Live-Set Mode with MIDI CC Program Change • Dedicated Mute and Solo on the buttons • Dedicated Split Screen • All knobs, sliders, and buttons are MIDI Learnable • Two different MIDI CC Program Change modes for quickly switching to presets via your controller • 2-Second max load times per set. • Ability to Receive on Separate MIDI channels per sound for multi-timbral stacks and layers • Global Mictotune, Transpose, Octave, and Velocity Curve. • Dedicated large volume sliders on front of interface. • Ability to Copy/Paste Single or All parameters across sound-sources ------- Device Requirements: ---------------- ▪ 2GHz ARM Processor Recommended - iPad Pro 12.9 and 9.7 in, iPad 5th Gen, iPad Pro 12.9 in. (Gen 2), iPad Pro 10.5 in., iPad 6th Gen, iPad Pro 11 in., iPad Pro 12.9 in. (Gen 3), iPad Air (Gen 3) ▪ iPhone X and higher - iPhones with at least 2GB RAM Supported Only ▪ Fast SSD Drives for External sample streaming ---------------- IMPORTANT NOTES: ▪ Crossgrades between different synth apps are not available due to iOS App Store restrictions. The only exceptions are FM TiNES and BASSalicious 2. ▪ Individual sounds within a sound pack cannot be downloaded separately. To optimize storage, we recommend using an external SSD. ▪ Our sounds are sampled directly from the original hardware, preserving its natural warmth and character. Some inherent noise may be present as a result.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.