Electro vs BackTrax
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Electro
Control and configure multiple portable loudspeakers wirelessly from your mobile device. Adjust EQ, gain, presets, and even mix shows on the fly for compatible models. Monitor system status and receive important notifications for a seamless performance.
- Simultaneous control of up to 6 loudspeakers
- Adjust EQ, gain, presets, and crossover
- On-the-fly show mixing
- Signal and limiter status indicators
- Battery life indicators
- Dynamic component grouping
- LED speaker identification
Read full descriptionHide full description
QuickSmart is your app for wireless control of compatible Electro-Voice portable loudspeaker families, including ZLX G2, ELX200, EVOLVE, and EVERSE. Quick and smart - exactly what the name says. Quick, because your best sound shouldn't wait. Simply connect in seconds, and you're in full control of your speaker system. No manual required. Smart, because your sound deserves more than just the basics. Adjust sound, EQ, and levels for your Electro-Voice speakers and groups, right from your phone or tablet. Mixer equipped models unlock professional effects and signal routing, with advanced configuration always within reach. From a single loudspeaker to a complex sound system. From your first soundcheck to your biggest gig. QuickSmart keeps your best sound in your hands, always at your fingertips.
BackTrax
Organize and manage all your show's supporting materials, including backing tracks, lyrics, and visual aids. Effortlessly load content from various cloud services and enjoy features like background playback and auto-scrolling lyrics to minimize mistakes and downtime during performances.
- Load songs from cloud services
- Support for multiple set libraries
- Background playback
- Auto-scrolling lyrics
- Bluetooth MIDI controller support
- Dark Mode support
- Large playback control buttons
Read full descriptionHide full description
BackTrax helps you organize the supporting materials for your show, and helps minimize mistakes and down time. It can load backing tracks along with lyrics, chord charts and other visual aids quickly and easily, whether you're running a pre-planned show in order or choosing material on the fly from an extensive library. Be sure to check out the manual to make sure the app does what you need and can fit your workflow: https://backtrax.app/docs/quickstart/ . Videos coming soon. FEATURES * Load songs from iTunes, iCloud, Dropbox, Box, Google Drive and other cloud services. * Support for multiple track/set libraries to separate materials for different bands. * Support for song entries with no backing track and optional click generation. * Per-song options for gain and start/stop times. * Background playback, so you can switch to a mixer app or guitar amp app while the backing track is playing. * Auto-scrolling lyrics and file attachment display for charts, notes, etc. * AirPlay support. * Bluetooth MIDI controller support. * Wide range of font size options for lyrics and set list. * Support for multiple sets per setlist. * Large displays for clock time, elapsed and remaining set times. * Stops playback after every song automatically, or optionally continuously plays straight through your setlist. * Dark Mode support, even on devices running iOS 12 and earlier. * Big, colorful playback control buttons at the bottom that are hard to miss. * Large progress bar and countdown timer let you know when the end of the currently playing song is coming. FEEDBACK Questions? Problems? Requests? Please hit the support link below or go to http://backtrax.app/support.html . Your feedback is always appreciated! Reviews are great, but direct contact is the best way to get answers to your questions and help with any problems. NEITHER THIS BACKTRAX MOBILE APPLICATION NOR AISLE4 SOFTWARE ARE IN ANY WAY AFFILIATED WITH THE RADIO PROGRAM 'BACKTRAX USA WITH KID KELLY', DIAL GLOBAL, INC. AND/OR ANY OF DIAL GLOBAL'S AFFILIATES, AND NONE OF THEM HAVE ENDORSED THE BACKTRAX MOBILE APPLICATION OR AISLE4 SOFTWARE.
Screenshots
Verdict
The clearest difference is price: Electro at Free against BackTrax's $14.99. Electro also leads on rating (3.1 vs 2.7) and ratings volume (131 vs 12). BackTrax's advantage is update cadence (monthly vs every 6 months) and iOS requirement (12.0 vs 17). On review sentiment, ads, in-app purchases and device support 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
Electro is free to download; BackTrax costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Electro holds the better App Store score, 3.1 against 2.7. That said, the two scores are not equally well evidenced: Electro has 131 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 32% of Electro's written reviews are positive against 25% of BackTrax's.
Electro ships an update every 6 months, BackTrax monthly. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.
| Parameter | Electro | BackTrax |
|---|---|---|
| Price | Free — better | $14.99 |
| Rating | 3.1 (131 ratings) — better | 2.7 (12 ratings) |
| Positive reviews | 32.1% of reviews — better | 25.0% of reviews |
| Number of ratings | 131 — better | 12 |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 12.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Keenfinity | Aisle4 Software |
Customer experience
Electro
BackTrax
Bugs and requests
Electro
Reported bugs
17 issues- App won't connect unless firmware is updated
- Bluetooth connection drops mid-performance
- Connection timeouts and constant loading
- App fails to recognize certain speaker models
- Settings revert to default values after power cycle
Show 12 moreShow fewer
- Channel names don't persist in saved presets
- Crossover settings don't save correctly
- Input rename function non-functional on iPad
- App crashes when switching between apps
- Stored presets not working reliably
- Front LED stops working after firmware update
- Distortion when app and native Bluetooth streaming run simultaneously
- App won't connect with certain iOS versions
- Limit indicator not displayed in app despite showing on speaker
- Fader positions not recalled on speaker restart
- Aux fader functions disappearing
- App doesn't work with VoiceOver accessibility feature
Requested features
19 requests- Parametric EQ on individual channels
- Ability to save and recall channel names with presets
- Individual channel volume and EQ control for all models
- Larger virtual LED meters and signal level displays
- Multi-device simultaneous pairing capability
Show 14 moreShow fewer
- Unified control interface for linked speaker pairs
- Ducking feature on all applicable channels
- Customizable effect parameters (decay time, delay length)
- Preset preview without loading
- Pre-fader auxiliary sends
- Frequency analyzer for feedback detection
- Spanish language support
- Better documentation and instruction manuals
- Ability to control speakers during firmware updates
- Longer tap delay times (beyond 500ms)
- Accessibility improvements for visually impaired users (VoiceOver support)
- Crossover frequency settings that save properly
- Battery percentage indicator display
- Release notes for firmware updates
BackTrax
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Electro
No in-app purchases
BackTrax
No in-app purchases









