Comparison

KP Viewer vs StajPilot

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

Head to head
About

KP Viewer

This app provides a clear, at-a-glance display for Kemper Profiler Player users during live performances. It shows current bank, rig name, effect status, morph status, and an automatic tuner, turning older devices into a dedicated stage display.

Highlights
  • Live performance display
  • Bank and Rig information
  • Rig name display
  • Effect status indicators
  • Automatic tuner
  • Dedicated stage display
Features
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BEFORE PURCHASING KP Viewer requires a Kemper Profiler Player or Profiler Stage and a direct USB connection. • Lightning iPhone or iPad: USB-B-to-Lightning cable • USB-C iPhone or iPad: USB-B-to-USB-C cable Connect the cable, allow the Kemper to power on completely, then open KP Viewer. The app will not function without a compatible Kemper device and cable. KP Viewer gives Kemper Profiler Player users a clear, easy-to-read display for live performance. Connect your iPhone or iPad to your Kemper Player and KP Viewer provides the information you need at a glance, without navigating through menus. KP Viewer displays: • Current Bank and Rig • Rig Name • Effect status for A, B, C, D, X, MOD, DLY, and REV • Morph status • Automatic tuner display The interface is designed to be simple, highly visible, and useful on stage, making an older iPhone or iPad a practical dedicated display for your Kemper Player. KP Viewer is an independent application and is not affiliated with or endorsed by Kemper GmbH.

About

StajPilot

Currently charting
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StajPilot is an independent performance display and wired USB MIDI controller for the KEMPER PROFILER Player and supported MK1/MK2 PROFILER models, including Stage, Head and Rack. Designed for live performance, StajPilot keeps essential rig information clearly visible while providing fast access to the controls you need on stage. FEATURES • Large landscape display optimized for stage visibility • Selectable Player, MK1 and MK2 device profiles • Performance and Browser layouts for MK1/MK2, including Performance slot names and inactive-slot indicators where available • Responsive wired USB MIDI connection • Most display information is driven by real-time MIDI streaming data • Two-way MIDI communication for many supported controls • StajPilot does not use continuous millisecond-interval polling to imitate real-time streaming. Features that genuinely require periodic polling remain disabled by default and can be enabled only when needed, avoiding unnecessary load on the PROFILER • Eight rig effect blocks with on/off status, detailed effect names and touch control • Fixed FX status and Touch/Always controls where supported; unavailable controls are disabled • Five Performance slots with bank navigation where supported, plus Browser navigation for MK1/MK2 • Rig name, amplifier information, gain level and tempo display • Optional Amp Gallery with images assigned to Song bank and slot positions • Pedal Morph support with morph level display • Needle and strobe tuner displays • Tap tempo and direct tempo entry • StajPilot's built-in Song Mode for creating and editing custom song, slot and sub names • Configurable bank limits and bank wrapping • Interactive demo mode for exploring the interface without connected hardware PHYSICALLY TESTED DEVICES • KEMPER PROFILER Player (LV3) • KEMPER PROFILER Stage MK1 USB CONNECTION Connect your iPhone or iPad to the USB-B port of a supported KEMPER PROFILER using a data-capable USB cable. A compatible USB OTG adapter can improve connection compatibility, but the quality of the adapter itself also matters. We strongly recommend both a short, high-quality data-capable USB cable and a high-quality, compatible adapter from reputable manufacturers. An adapter alone does not guarantee a stable connection; the cable, adapter and physical connector fit all matter. During testing with many cables and adapters, we encountered connection errors with a considerable number of combinations on iPhone and iPad. Symptoms included failure to recognize the device, incomplete rig or effect information, interrupted MIDI streaming and failed reconnection. A connection that works with another device may not be reliable with your iPhone or iPad. If information is missing or the connection is unstable, try a different short cable and compatible adapter. Insert all connectors firmly and avoid tension or sideways pressure on the plugs. Compatibility may also vary with connector orientation and connection order. StajPilot does not require an account, subscription or internet connection. COMPATIBILITY NOTICE StajPilot is an independent third-party application and is not affiliated with or endorsed by Kemper GmbH. Compatibility and proper operation with any KEMPER PROFILER model are not guaranteed. Changes to device hardware, firmware, communication protocols or operating systems may affect, limit or discontinue some or all functionality. Before relying on StajPilot at an important performance or event, thoroughly test your complete setup in advance, including your PROFILER, iPhone or iPad, cable, adapter and every function you plan to use. KEMPER and PROFILER are trademarks of Kemper GmbH. All trademarks belong to their respective owners.

Screenshots

KP Viewer1 screens
StajPilot4 screens

Verdict

The call

The clearest difference is price: KP Viewer at $19.99 against StajPilot's $29.99. StajPilot's advantage is update cadence (every 2 days vs weekly) and chart position (#86 vs unranked). On ads, in-app purchases, 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

KP Viewer costs $19.99 and StajPilot $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

KP Viewer ships an update weekly, StajPilot every 2 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 8 level
KP Viewer versus StajPilot: the parameters behind the verdict, then further details
ParameterKP ViewerStajPilot
Price$19.99 — better$29.99
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
Best chart rank—#86 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size3 MB40 MB
Age rating4+4+
DeveloperDEREK BERNARDJONGWOONG AN

In-app purchases

None

KP Viewer

No in-app purchases

None

StajPilot

No in-app purchases

Questions

Is KP Viewer free?
KP Viewer costs $19.99, with no in-app purchases.
Is StajPilot free?
StajPilot costs $29.99, with no in-app purchases.
Do KP Viewer or StajPilot have ads?
Neither KP Viewer nor StajPilot shows ads.
Which is updated more often, KP Viewer or StajPilot?
KP Viewer ships an update weekly, and StajPilot every 2 days. Most recently, KP Viewer was updated on October 5, 2026 and StajPilot on October 15, 2026.

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