Comparison

Equalizer Fx vs Trapp

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

Head to head
About

Equalizer Fx

Enhance your music listening experience with a powerful 7-band equalizer and bass booster. Customize sound effects with presets or create your own, and enjoy background playback and radio streaming.

Highlights
  • Powerful bass-boosting effects
  • 7-band EQ with DJ transitions
  • Create custom equalizer presets
  • Elegant music visualizers
  • Background music playback
  • Stream radio stations
Features
Currently charting
Read full description

Best equalizer and bass booster app for iPhone and iPad – Equalizer Fx lets you experience the magic of music with its powerful 7-band EQ and dynamic bass tuning functionalities. Enhance the way you listen to songs by modifying sound effects using 15+ punchy amplifier presets. You can quickly create your own custom presets as well. Key Features of Equalizer Fx: • Powerful bass-boosting effects • 7-band EQ with Dj transitions • Elegant music visualizers • Create custom equalizer presets • Play music in the background • Stream your favorite radio stations • Equalizer presets: Acoustic, Bass Booster, Bass Reducer, Flat, Classical, Hip Hop, Rock, Latin, Pop, etc. DRM Restrictions on Music Effects Please note that you cannot apply any equalizer, bass boost, or volume boost to DRM-protected music. Apple Music tracks are DRM-protected, which means that they are encrypted and cannot be played with effects unless you have purchased and own the song from iTunes. The Equalizer Fx app requires unencrypted raw audio data to apply any type of effects. Auto-Renewable Subscription Terms: Subscribe to get unrestricted access to all the features outlined above. • Subscription Length: Monthly, Yearly • Subscription with a free trial will automatically renew to a paid subscription unless it is canceled at least 24 hours before the end of the trial period. • Payment will be charged to iTunes Account at confirmation of purchase. • Your Apple ID account will be charged for renewal within 24 hours before the end of the trial period. • You can manage and cancel your subscriptions by going to your account settings on the App Store. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. • By signing up for this subscription, you agree to our Terms of Use and Privacy Policy. Terms of Use: https://www.twinbit.net/tc/equalizer/terms.php Privacy Policy: https://www.twinbit.net/tc/equalizer/privacy.php Disclaimer: This app is free to download, but you will be required to sign-up for an auto-renewing subscription to access the app's full functionality.

About

Trapp

Create dynamic music visualizations with customizable backgrounds, shapes, particles, and sound bars. Sync with your music library and record your creations to share.

Highlights
  • Customizable backgrounds and colors
  • Customizable Trapp shapes, sizes, and colors
  • Customizable particle effects
  • Customizable sound bars and bass effects
  • Record and share visualizations
  • Spotify and device music app integration
Features
Read full description

Trapp is a music visualization app. Simply pick the visualizer, customize and play with Spotify List or Music App on your device. App Features: -Custom Backgrounds,colors -Custom Trapp shape, size, colors. -Custom Particle, shape, size, colors. -Custom Sound Bars, Shape, size, colors, amplitude. -Custom Bass Effect. -Custom Circle Bass Effect, Circle size, color and background. -Record and Share. You can create limited visualizers with standard edition. After getting premium you can create and edit unlimited visualizers. Note: In order to use Spotify list in Trapp app, you need to give permission to access your list. Following is the Information about the auto-renewable subscription.We offer Trapp to visualize your music, access your music list and create custom traps. With subscribing you can use access Trapp app you can use unlimited during subscription period. Subscription periods are Monthly. Privacy Policy: http://dakyuz.com/index.php/2018/12/17/trapp-privacy-policy/ Terms and Cons : http://dakyuz.com/index.php/2018/12/17/trapp-privacy-policy/ Every period your subscription renews.Subscriptions may be managed by the user and auto- renewal may be turned off by going to the users. Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.Package per month $3.99. Premium Package per 3 months $9.99, Premium Package per 1 year $23.99 Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. You can cancel your subscription via this url: https://support.apple.com/en-us/HT202039.

Screenshots

Equalizer Fx4 screens
Trapp4 screens

Verdict

The call

The clearest difference is monetization model: Trapp at free with in-app purchases against Equalizer Fx's subscription. Trapp also leads on ads (none vs shown) and iOS requirement (9.3 vs 15.0). Equalizer Fx's advantage is update cadence (every 3 weeks vs every 6 months) and chart position (#203 vs unranked). On price, rating, review sentiment 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Equalizer Fx sells 10 in-app purchases, starting at $2.99 per 7 days and Trapp sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.2 for Equalizer Fx against 4.3 for Trapp. That said, the two scores are not equally well evidenced: Equalizer Fx has 28K ratings behind it against 3.9K, so its average is the more settled of the two. Written reviews are what separate them: 19% of Equalizer Fx's written reviews are positive against 21% of Trapp's.

UpkeepUpdate frequency

Equalizer Fx ships an update every 3 weeks, Trapp every 6 months. The most recent releases landed on September 27, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 5 level
Equalizer Fx versus Trapp: the parameters behind the verdict, then further details
ParameterEqualizer FxTrapp
PriceFreeFree
Rating4.2 (28K ratings)4.3 (3.9K ratings) — better
Positive reviews19.1% of reviews20.9% of reviews — better
Number of ratings28K — better3.9K
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#203 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.09.3 — better
Further details — not scored
Size53 MB84 MB
Age rating4+4+
DeveloperTwinBit LtdDakyuz Yazilim Ticaret Limited Sirketi

Customer experience

Equalizer Fx

All ratings27,913 ratings
Positive78.6%
Neutral3.6%
Negative17.8%
Written reviews503 reviews
Positive19.1%
Neutral4.2%
Negative76.7%

Trapp

All ratings3,873 ratings
Positive80.0%
Neutral3.8%
Negative16.2%
Written reviews134 reviews
Positive20.9%
Neutral13.4%
Negative65.7%

User reviews

Equalizer Fx

From 28K App Store ratings

What we love

  • 🚀 Good sound quality
  • 👍 Customizable equalizer
  • 👍 Useful bass booster

Room to improve

  • 🐛 Crashes and freezes
  • 🔒 Requires paid subscription to access features
  • 👎 Limited functionality without paid subscription
  • 👎 Doesn't work with Apple Music or other streaming services

Trapp

From 3.9K App Store ratings

What we love

  • 👍 Visualizes music well
  • 🚀 Responsive and smooth
  • 💡 Customizable visualizations

Room to improve

  • 🔒 Requires subscription to access full features
  • 🐛 Frequent crashes and glitches
  • 🔋 Drains battery quickly
  • 🚫 Cannot import custom audio files

Bugs and requests

Equalizer Fx

Reported bugs

3 issues
  • Equalizer and bass boost not working as expected
  • Subscription issues and inability to cancel
  • Compatibility problems with certain devices and iOS versions

Requested features

3 requests
  • Add widget support
  • Allow importing and playing of personal music library
  • Improve stability and reliability

Trapp

Reported bugs

3 issues
  • Visualizations not working as expected
  • App crashes when trying to create new projects
  • Audio playback issues

Requested features

3 requests
  • Allow importing of custom audio files
  • Add ability to save and export visualizations
  • Improve performance and stability

In-app purchases

10 purchases

Equalizer Fx

Subscriptions9
  • Equalizer VIP3 Days trial$2.997 Days
  • Equalizer Monthly3 Days trial$2.991 Month
  • Monthly Premium$4.991 Month
Show 6 more
  • Weekly Premium3 Days trial$4.997 Days
  • Equalizer VIP Weekly3 Days trial$7.997 Days
  • Equalizer VIP3 Days trial$9.991 Month
  • Equalizer Yearly3 Days trial$9.991 Year
  • Equalizer VIP Monthly7 Days trial$11.991 Month
  • Equalizer VIP Yearly3 Days trial$49.991 Year
One-time1
  • Lifetime Membership$19.99
3 purchases

Trapp

Subscriptions3
  • Trapp Monthly Subscription$3.991 Month
  • Trapp 3 Months$9.993 Months
  • Trapp Yearly$23.991 Year

Questions

Is Equalizer Fx free?
Equalizer Fx is free to download, with in-app purchases available.
Is Trapp free?
Trapp is free to download, with in-app purchases available.
Which has better reviews, Equalizer Fx or Trapp?
Trapp is rated higher. Equalizer Fx averages 4.2 out of 5 from 28K ratings, while Trapp averages 4.3 from 3.9K ratings.
Do Equalizer Fx or Trapp have ads?
Equalizer Fx shows ads; Trapp does not.
Which is updated more often, Equalizer Fx or Trapp?
Equalizer Fx ships an update every 3 weeks, and Trapp every 6 months. Most recently, Equalizer Fx was updated on September 27, 2026 and Trapp on September 23, 2026.

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