FlexTune vs EQ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FlexTune
Personalize your car's audio system with this app. Easily adjust bass, clarity, and other sound settings using a five-band equalizer and create custom profiles for different music or moods. Enjoy wireless control of your KICKER audio system.
- Variable Five-Band Parametric Equalizer
- Multiple Custom Presets
- Remote KICKER Subwoofer Gain
- Adjustable Center-Image Control
- Bluetooth LE Enabled
- Wireless Control
Read full descriptionHide full description
Congratulations on your new vehicle. Now it’s time to make your sound personal! KICKER® FlexTune™ works seamlessly with your phone, tablet and your new KICKER audio system to personalize your sound. Increase the clarity? No problem. Want more KICKER bass? Turn one knob. Easily tweak the audio with a touch of the graphic five-band equalizer, right from your phone or tablet screen. You’ll hear how much better it sounds from the very first touch! When your sound is perfect, save it as your own personal profile, or make multiple profiles to match your tunes, your spouse’s tunes, the kids’ tunes – or your mood! Features: • Variable Five-Band Parametric Equalizer • Multiple Custom Presets • Remote KICKER Subwoofer Gain • Adjustable Center-Image Control • Bluetooth LE® Enabled • Completely Wireless Control
EQ
This audio plug-in emulates a classic British equalizer from the 1970s. It offers extensive tonal control with four bands of equalization, high-pass and low-pass filters, and various operational modes. A demo version is available for free, with an unlimited version offered as an in-app purchase.
- Classic British EQ emulation
- Four bands of equalization
- High-pass and low-pass filters
- Stereo, Mid, or Side EQ modes
- Saturation On/Off
- Undo/Redo and A/B comparison
- Standalone and AUv3 plugin
Read full descriptionHide full description
EQ-A AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the EQ-A AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ-A AUv3 plug-in comes as In-App Purchase. The EQ-A based on Classic British EQ from the '70s. With a surprisingly wide range of tonal variations, the EQ-A is an invaluable and professional audio tool with great flexibility and excellent sonic ability. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage EQ; • Four bands of classic British equalization (the mid frequency EQ sections are «peaking», while the high and low frequency sections are «shelving»); • Each band offers 4 selected frequency centers; • 15 dB of boost/cut per band; • Three high pass filters at 18 dB per octave and three low pass filters at 12 dB per octave; • Stereo (Mono), Mid or Side EQ modes; • Saturation On/Off-button; • The main of the EQ section allows four frequencies at any one time, switchable to one of four frequencies: Low Filter (Shelf): 50, 80, 100, 150 Hz; Low-Mid Filter (Bell): 250, 500, 1k, 2k Hz; High-Mid Filter (Bell): 3k, 5k, 7k, 9k Hz; High Filter (Shelf): 8k, 10k, 12k, 15k Hz; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. A series of three high pass filters at 18 dB per octave and three low pass filters at 12 dB per octave are arranged at the ends of the EQ section. They are unique in that the switches can be pushed in simultaneously, offering distinct cut filter combinations with unusual filter curves. The EQ-A extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing. Allows you to choose between equalizer modes (Stereo, Mid, Side) and remove analogue saturation from the processing circuit to deliver pure digital sound.
Screenshots
Verdict
The clearest difference is review sentiment: EQ at 90% against FlexTune's 40%. EQ also leads on rating (4.8 vs 2.8) and update cadence (every 2 weeks vs every 3 months). FlexTune's advantage is in-app purchases (none vs 1) and iOS requirement (8.2 vs 10.0). On price, ratings volume, ads 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
Both are free to download. EQ sells 1 one-off in-app purchase. FlexTune asks for nothing beyond the download.
EQ holds the better App Store score, 4.8 against 2.8. Both are backed by a comparable volume of ratings — 10 and 20 respectively. Written reviews point the same way: 40% of FlexTune's written reviews are positive against 90% of EQ's.
FlexTune ships an update every 3 months, EQ every 2 weeks. The most recent releases landed on August 14, 2026 and August 20, 2026 respectively.
| Parameter | FlexTune | EQ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (10 ratings) | 4.8 (20 ratings) — better |
| Positive reviews | 40.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 10 | 20 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.2 — better | 10.0 |
| Further details — not scored | ||
| Size | 16 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Kicker | RRS, OOO |
Customer experience
FlexTune
EQ
In-app purchases
FlexTune
No in-app purchases
EQ
- RRS EQ-A Unlimited$4.99









