K7D vs rymdigare
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K7D
This app offers a vintage tape delay effect with analog emulation and modern controls. It recreates classic hardware echo machines for a warm, characterful sound. Use it standalone or as an AUv3 plugin in iOS DAWs.
- Analog modeled dual playhead delay
- Modeled microphone input with saturation
- Normal and Ping Pong modes
- High pass and Low pass feedback filters
- Powerful LFO time modulation
- BPM syncable delay time
- MIDI delay time modulation
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K7D is a powerful and affordable, vintage tape delay effect plugin for iOS. K7D recreates the hardware echo machines of the past using Imaginando’s signature style of obsessive analog emulation, but with an enhanced level of control from a sleek, modern interface. Using this approach allows a whole new world of creative possibilities, while still retaining a warm, full-bodied analog sound, bursting with character and personality. To give K7D it’s distinctive analog flavour, we studied and analysed the tiny details of what makes classic hardware delays great, and painstakingly recreated every subtle nuance for a fantastically authentic sound. Available as a standalone app and audio unit plugin, you can use it digital audio stations for iOS such as Garage Band, AUM, Cubasis, Auria, Audiobus, etc. Features - 1ms to 1 sec. dual playhead analog modeled delay with noise, tape distortion and mechanical vibration models - Modeled microphone input with pre-amp saturation - Normal and Ping Pong modes - Optimized gain staging and saturation algorithms for very musical results - Delay time spread between heads and stereo width control - High pass and Low pass filter on feedback path - Powerful LFO bipolar time modulation with multiple waveforms (sine, triangular, saw, square, sample and hold and filtered sample and hold) and possibility of inverted LFO phase on second play head (for added stereo imaging) - Delay time syncable with BPM - Possibility of delay time modulation via incoming midi notes - Oscilloscope visualisation of audio waveform and LFO waveform - Built-in patch manager - Audiounit compatible
rymdigare
This app is a versatile audio processing tool that combines reverb, noise generation, and sound degradation effects. It offers extensive control over reverb parameters, LFO modulation, and includes a resonant filter and octave shifter. It can be used as a standalone application or integrated with other music apps.
- Five reverb boxes with detailed control
- Noise and drone machine
- Level and speed degrader
- Resonant filter
- Octave shifter
- LFO modulation
- AUv3, Inter App Audio, AudioBus support
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During a routine mining expedition in the outer regions of the galaxy five mysterious boxes of unknown origin were found. Rumours among the workers spread quickly that there was a strange feeling being around these boxes, as if time flows in a different way, not just forward but sometimes also folding back on itself. The miners nicknamed them, the five boxes of reverberation. After the excavation process, to study them more closely, it was decided to transport them back to earth. Rymdigare is part reverb, part noise and drone machine, part quality degrader and part wave shaper. The reverb is built from 5 reverberation boxes where you can control the sound with length and ratio parameters, tail and weight skew parameters and an internal feedback parameter, that could be used to create swelling tails. There is also a built in octave shifter, resonant filter, speed and level degrader and 4 LFO sources for modulating a selected set of parameters, including the LFO speeds themselves. The app can run stand-alone, connecting to other apps through Inter App Audio or AudioBus or it can run as an AUv3 plugin. Map and control any parameter with MIDI using Core MIDI, Bluetooth MIDI, Inter App Audio MIDI or AUv3 MIDI. + Resonant filter (low, band or high pass) + Noise and drone machine + Level and speed degrader + Wave shaper (input and output gain) + Reverb (length, ratio, skew, tail, feedback and type: free, bpm, tuned) + Reverb random variation controls + Octave shifter up and down + Planet orbits (LFO: double tap on parameter controls to map) + Inter App Audio, AudioBus and AUv3 + Map Midi CC using Core MIDI, Bluetooth MIDI, IAA Midi or AUv3 MIDI.
Screenshots
Verdict
The clearest difference is update cadence: rymdigare at every 2 weeks against K7D's every 3 months. rymdigare also leads on chart position (#176 vs unranked) and iOS requirement (9.0 vs 17.0). K7D's advantage is price ($3.99 vs $4.99). 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
K7D costs $3.99 and rymdigare $4.99 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 — 4.6 for K7D against 4.7 for rymdigare. Both are backed by a comparable volume of ratings — 79 and 58 respectively. Written reviews are what separate them: 80% of K7D's written reviews are positive against 88% of rymdigare's.
K7D ships an update every 3 months, rymdigare every 2 weeks. Both last shipped on November 3, 2026.
| Parameter | K7D | rymdigare |
|---|---|---|
| Price | $3.99 — better | $4.99 |
| Rating | 4.6 (79 ratings) | 4.7 (58 ratings) — better |
| Positive reviews | 80.0% of reviews | 87.5% of reviews — better |
| Number of ratings | 79 — better | 58 |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #176 — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 114 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Imaginando Lda | Erik Sigth |
Customer experience
K7D
rymdigare
Bugs and requests
K7D
Reported bugs
8 issues- App crashing with many instruments
- Project crashes and data loss
- App not opening after crashes
- App deleting progress
- Randomiser not working
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- App will not load
- Digital pops and clicks with Audiobus 3
- Dry signal only in one ear with stereo input
Requested features
9 requests- Fix background audio standalone
- Fix randomiser feature
- Improve CPU efficiency
- Make iPad and iPhone versions compatible
- Add reverse playback option
Show 4 moreShow fewer
- Allow MIDI assignment for knobs/functions
- Improve input selection for interfaces
- Update for Audiobus 3 compatibility
- Make UI elements larger and more visible
rymdigare
Not enough reviews yet to summarise bugs or requests.
In-app purchases
K7D
No in-app purchases
rymdigare
No in-app purchases







