Comparison

K7D vs TB Equalizer

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

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

TB Equalizer

This professional audio plug-in offers advanced equalization with a dynamic workflow and warm, non-linear filters. It processes microphone input in real-time and integrates with AUv3-compatible host apps for music production.

Highlights
  • Mastering grade equalizer
  • Integrated spectrum and dynamics analyzer
  • Up to 16 filter sections
  • Dynamic or static filter modes
  • AI-powered equalization suggestions
  • Oversampling and anti-aliasing
  • Mid/side/left/right processing
Read full description

ToneBoosters Equalizer is a top-quality, professional, dynamic equalizer AUv3 plug-in with an unrivalled workflow, warm, non-linear filters and a gorgeous, functional user interface. The ToneBoosters Equalizer app captures the microphone (or external sound card) input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Equalizer will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Mastering grade, professional equalizer - Integrated spectrum analyser and dynamics analyser - The same professional sound as the acclaimed desktop version - Up to 16 filter sections with a very wide range of filter types - Run each section in dynamic or static mode - Run each section with digital purity or with analog character and non-linearities - Oversampling and anti-aliasing modes to further improve sound quality - Use Artificial Intelligence (AI) for content-dependent equalisation suggestions - Audition mode to easily identify problematic frequency areas - Automatic level make up function for every section - Zero latency mode for live operation - Lasso function to select and move multiple filters simultaneously - Piano display to select musical note frequencies - Output VU meters showing peak and RMS levels simultaneously - Undo/redo, and A/B comparison - Color themes for the user interface - Adjustable colours for every filter section - Mid, side, left, right processing for stereo input for each section - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch - Efficient, low CPU usage What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

Screenshots

K7D2 screens
TB Equalizer4 screens

Verdict

The call

The clearest difference is price: K7D at $3.99 against TB Equalizer's $9.99. TB Equalizer's advantage is update cadence (monthly vs every 3 months) and iOS requirement (13.0 vs 17.0). 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

CostPrice · In-app purchases · Ads · Monetization

K7D costs $3.99 and TB Equalizer $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for K7D against 4.6 for TB Equalizer. Both are backed by a comparable volume of ratings — 79 and 66 respectively. Written reviews are what separate them: 80% of K7D's written reviews are positive against 84% of TB Equalizer's.

UpkeepUpdate frequency

K7D ships an update every 3 months, TB Equalizer monthly. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
K7D versus TB Equalizer: the parameters behind the verdict, then further details
ParameterK7DTB Equalizer
Price$3.99 — better$9.99
Rating4.6 (79 ratings)4.6 (66 ratings) — better
Positive reviews80.0% of reviews83.9% of reviews — better
Number of ratings79 — better66
Update frequencyEvery 3 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size114 MB11 MB
Age rating4+4+
DeveloperImaginando LdaToneBoosters

Customer experience

K7D

All ratings79 ratings
Positive87.3%
Neutral6.3%
Negative6.3%
Written reviews45 reviews
Positive80.0%
Neutral8.9%
Negative11.1%

TB Equalizer

All ratings66 ratings
Positive90.9%
Neutral1.5%
Negative7.6%
Written reviews56 reviews
Positive83.9%
Neutral3.6%
Negative12.5%

User reviews

K7D

From 79 App Store ratings

What we love

  • 🎶 Incredible sound quality
  • 🎨 Creative and musical delay
  • 💡 Generous presets and easy to use
  • 💰 Top-tier for the price
  • 🕰️ Authentic tape delay feel

Room to improve

  • 💻 Extreme lag and crashes
  • 🐛 Audio delay issues and glitches
  • ⚠️ High resource usage
  • ❌ No background audio standalone
  • 📉 Randomiser not working (initially)

TB Equalizer

From 66 App Store ratings

What we love

  • 🎶 Professional sound quality
  • 💡 Intuitive and easy to use
  • 💰 Excellent value for money
  • 🚀 Powerful features
  • ✨ High-quality product

Room to improve

  • 📱 UI size is too small on iPhones
  • 🤏 Microscopic menus and icons
  • 🎛️ Popup window for node selections is redundant
  • 🖥️ Takes away valuable screen space on smaller devices
  • 🚫 Popup cannot be disabled

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
Show 3 more
  • 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 more
  • Allow MIDI assignment for knobs/functions
  • Improve input selection for interfaces
  • Update for Audiobus 3 compatibility
  • Make UI elements larger and more visible

TB Equalizer

Reported bugs

12 issues
  • Popup window for node selections cannot be disabled
  • Plug-in not being read correctly
  • Destroys mixed tracks
  • App crashes LumaFusion as a plug-in
  • Makes audio sound flat
Show 7 more
  • Doesn't adjust any frequency
  • Compatibility problem with Air Pod Pro
  • Dynamic mode only works for taming frequency bands (compression), not boosting (expansion)
  • LFO maximum frequency could be improved
  • Instruments lose crystalline sound under 17Khz
  • Only one channel side chain
  • Need more bands for side chain

Requested features

14 requests
  • Disable popup window for node selections
  • Larger UI for iPhones
  • Fix plug-in reading issues
  • Mouse compatibility
  • Improve LFO maximum frequency
Show 9 more
  • Add negative dynamic ratios
  • Implement multi-band compressor
  • Add a channel for ~5 bands side chain
  • More documentation available
  • Add brickwalls
  • Fading spectrum on reverb app
  • More Tonebooster AUs on iOS
  • Dark mode option
  • Advanced analytics dashboard

In-app purchases

None

K7D

No in-app purchases

None

TB Equalizer

No in-app purchases

Questions

Is K7D free?
K7D costs $3.99, with no in-app purchases.
Is TB Equalizer free?
TB Equalizer costs $9.99, with no in-app purchases.
Which has better reviews, K7D or TB Equalizer?
TB Equalizer is rated higher. K7D averages 4.6 out of 5 from 79 ratings, while TB Equalizer averages 4.6 from 66 ratings.
Do K7D or TB Equalizer have ads?
Neither K7D nor TB Equalizer shows ads.
Which is updated more often, K7D or TB Equalizer?
K7D ships an update every 3 months, and TB Equalizer monthly. Most recently, K7D was updated on November 3, 2026 and TB Equalizer on October 29, 2026.

Other comparisons