RP vs apeMatrix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RP
This app offers dual stereo delay lines for a vast array of audio effects, from simple echoes to complex soundscapes. It features individual bypass, modulation routing, and tempo synchronization options.
- Dual stereo delay lines
- High- and Lowpass filters
- Stereo spread and Looping
- Separate modulation delay
- Tempo sync via AudioUnit Host or Ableton Link
- Delay times from 10ms to 2000ms
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RP-1 - Dual Digital Delay FX Two separate (stereo) delay lines allow for a wide range of effects ranging from basic slapback and ping-ping type echos to complex modulations and soundscapes. * Overview - Digital Stereo Delay with High- and Lowpass filters, Stereo spread and Looping - Separate modulation Delay for Chorus, Vibrato, Flanger, Panning, Phaser & Tremolo effects - Both sections can be bypassed individually - Mod section can be routed pre or post delay - Delay Times from 10ms to 2000ms (or 1/32 to 2bars) - Tempo Sync via AudioUnit Host or Ableton Link - Tap Temp and Manual Tempo - Normal, Dotted and Triplet - Stereo Spread - Simple 1-Button Looping * Connections - AudioUnitV3 Effect - Inter-App Audio Effect - Audiobus (Filter) - Ableton Link - USB Audio Interface - Microphone
apeMatrix
This app acts as a powerful host for audio plugins, allowing users to connect and automate various aspects of music creation. It facilitates the integration of favorite FX, MIDI routing, and control over built-in and external plugin parameters.
- Audio Unit and Inter-App Audio support
- MIDI and audio routing
- Control Manager for parameter modulation
- Multiple Matrix grids for plugin hosting
- MIDI Patch-bay for routing
- High-quality audio processing
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Holding true to the standard of apeSoft, apeMatrix continues to push the limits of possibilities in music creation. Automating almost every aspect of linked control, apeMatrix brings all your creation tools together and links them both in MIDI and audio. Letting you inject all your favorite FX both AU and IAA in a very easy and intuitive way. apeMatrix can also assign its Control Manager MIDI, Accelerometer, Scrub and LFO’s to modulate every built-in parameter and any parameter available inside the AUv3 (Audio Unit Plugins). apeMatrix offers 10 slots on each of the three Matrix grids with 2 bus slots on each grid that make it possible to interconnect all 3 Matrix. The MIDI Patch-bay also offers endless possibilities for MIDI routing and control in a similar grid design for both internal and external MIDI control. So you can send and receive MIDI and have ultimate control over where it’s routed. Each Audio Connection on the grid has its own gain control. Just tap on the node and drag will give you the full range of volume control. Or use Mixer to controls the RAU output and automate them using apeSoft’s unique Control Manager MIDI, Accelerometer, Scrub and LFO’s to modulate every built-in parameter and any parameter available inside the AUv3 (Audio Unit Plugins). Turn each slot on or off by a control switch on the Matrix or MIDI control. Control output, pan, mute and solo of each slot and Master output of each Matrix with the built in mixer control or MIDI control. Route your sounds through all a series of FX or route multiple sounds through the very some FX. The possibilities are as endless as your creativity. FEATURES High quality audio up to 32-bit 96kHz Supports Audio Unit extensions, Inter-App Audio Supports multi-channel inputs/outputs audio interfaces Supports Audio Unit Multi-bus input/output (side-chaining) 3 Matrix Audio 3 MIDI Matrix 10 Open Slots per Matrix (hosts up to 30 plugins) 2 Audio Bus Slots per Matrix 2 MIDI Bus Slots per Matrix MIDI Monitor Multi-Channel Audio Route AudioUnit Audio Send Receive Buses MIDI Scale Filtering, Transpose etc… Control Manager (MIDI, Accelerometer, LFO, Scrub) for all Built-In Parameters Control Manager (MIDI, Accelerometer, LFO, Scrub) for all AUv3 (Audio Unit Plugins) Presets Manager and Morphing Pad Save Custom AUv3 Presets Session Saving/Load Save/Load View’s Frame in Presets Transport to sends host sync to Audio Unit plugins and IAA Integrated and configurable MIDI keyboard with scales Connections output and panning controls Post Dynamic Processor Audiobus and Inter-Audio App (Sender and Fx) Audiobus state saving Ableton Link Precise MIDI Clock In/Out AudioShare Compatible AudioCopy Compatible MIDI Manager: Virtual Midi and Network, 14 bit NRPN controllers File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy etc… Variable Sampling Rate (up to 96 kHz) Variable Buffering Size Variable UI Color Schemes BUILT-IN AUv3 (compatibles with other audio hosts) Configurable Sampler with scrub, playable via MIDI V-Meters Oscilloscope/Spectralscope Sender/Receiver (up to 16 buses) Send MIDI messages with LFO Gain/Pan
Screenshots
Verdict
The clearest difference is rating: apeMatrix at 4.7 against RP's 3.9. apeMatrix also leads on ratings volume (84 vs 15). RP's advantage is price ($5.99 vs $14.99) and iOS requirement (9.0 vs 17.0). On review sentiment, update cadence, ads and in-app purchases 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
RP costs $5.99 and apeMatrix $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
apeMatrix holds the better App Store score, 4.7 against 3.9. That said, the two scores are not equally well evidenced: apeMatrix has 84 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 70% of RP's written reviews are positive against 73% of apeMatrix's.
RP ships an update every 2 months, apeMatrix monthly. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.
| Parameter | RP | apeMatrix |
|---|---|---|
| Price | $5.99 — better | $14.99 |
| Rating | 3.9 (15 ratings) | 4.7 (84 ratings) — better |
| Positive reviews | 70.0% of reviews | 72.7% of reviews — better |
| Number of ratings | 15 | 84 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Kai Aras | apeSoft |
Customer experience
RP
apeMatrix
In-app purchases
RP
No in-app purchases
apeMatrix
No in-app purchases








