Drift vs KP Viewer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Drift
This audio plugin offers dynamic saturation with a continuously shifting distortion curve. Achieve warm, musical tones or gritty, unpredictable textures. It's designed for musicians and producers seeking unique sonic character.
- Dynamic saturation with shifting distortion
- Adjustable drive for warmth to clipping
- Drift parameter for continuous curve changes
- Depth and Spread for stereo variation
- React for transient-following distortion
- Post-saturation tone shaping
- AUv3 plugin support
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DRIFT is a saturation plugin with a wandering soul. The distortion curve doesn't sit still — it shifts continuously, driven by the Drift parameter, so your signal is never processed the same way twice. Warm and musical at low settings. Gritty and unpredictable pushed hard. Everything in between. — DRIVE — Pushes the signal into saturation. From gentle warmth to hard clipping. — DRIFT — The wandering parameter. Steers the saturation curve continuously over time — the higher it goes, the more the character shifts. — DEPTH — Controls how far the curve travels from its center position. More depth, more variation. — SPREAD — Widens the drift behavior between left and right channels for stereo movement. — REACT — How quickly the curve responds to transients. Low React for smooth, gradual drift. High React for transient-following distortion. — TONE — Post-saturation tonal shaping. Roll off highs or open up the top end after the drive. — MIX — Dry/wet blend for parallel saturation. — OUTPUT — Final output level after saturation and tone shaping. — AUv3 PLUGIN — Run DRIFT inside AUM, ApeMatrix, Audiobus, or any AUv3 host. Multiple instances, each with independent settings. — WORKS ON — iPhone and iPad, all modern screen sizes.
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.
- Live performance display
- Bank and Rig information
- Rig name display
- Effect status indicators
- Automatic tuner
- Dedicated stage display
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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.
Screenshots
Verdict
The clearest difference is price: Drift at $1.99 against KP Viewer's $19.99. Drift also leads on update cadence (daily vs every 4 days). On rating, review sentiment, ratings volume and ads 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
Drift costs $1.99 and KP Viewer $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Drift against 5.0 for KP Viewer. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Drift ships an update daily, KP Viewer every 4 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Drift | KP Viewer |
|---|---|---|
| Price | $1.99 — better | $19.99 |
| Rating | 5.0 (6 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 6 — better | 3 |
| Update frequency | Daily — better | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #191 — better | #193 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 8 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephan Bolch | DEREK BERNARD |
Customer experience
Drift
KP Viewer
In-app purchases
Drift
No in-app purchases
KP Viewer
No in-app purchases









