FlexTune vs Volume Booster.
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
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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
Volume Booster.
Enhance your audio experience by increasing the volume of music, videos, and other audio content up to 10 times. It includes a built-in player for seamless playback and offers premium features for ad-free listening.
- Boosts audio volume up to 10x
- Supports music, video, and audio
- Includes built-in audio player
- Removes advertisements with premium subscription
- Offers weekly and monthly subscription plans
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-The app makes audio, music,video volume louder up to 10 times -The app supports builtin music audio video player Volume Booster Premium We currently offer the following auto-renewing subscription option: - $5.99 per week - $7.99 per month By subscribing you get unlimited access to effects and remove advertisement. Payment will be charged to iTunes Account at confirmation of purchase. Your subscription will automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Your account will be charged for renewal within 24-hours prior to the end of the current period. Subscriptions may be managed and auto-renewal may be turned off by going to the Account Settings after purchase. No cancellation of the current subscription is allowed during active subscription period. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Terms of Use: https://tos.atlantismobileapps.com Privacy Policy: https://privacy.atlantismobileapps.com
Screenshots
Verdict
The clearest difference is rating: Volume Booster. at 4.0 against FlexTune's 2.8. FlexTune's advantage is review sentiment (40% vs 0%) and in-app purchases (none vs 3). On price, update cadence 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. Volume Booster. sells 3 in-app purchases, starting at $5.99 per 7 days. FlexTune asks for nothing beyond the download.
Volume Booster. holds the better App Store score, 4.0 against 2.8. That said, the two scores are not equally well evidenced: FlexTune has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 40% of FlexTune's written reviews are positive against 0% of Volume Booster.'s, so the app with the better star average is not the one people write more warmly about.
FlexTune ships an update every 3 months, Volume Booster. every 2 months. The most recent releases landed on August 14, 2026 and August 17, 2026 respectively.
| Parameter | FlexTune | Volume Booster. |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (10 ratings) | 4.0 (2 ratings) — better |
| Positive reviews | 40.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 10 — better | 2 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 8.2 — better | 16.0 |
| Further details — not scored | ||
| Size | 16 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Kicker | Nguyen Nam Giang |
Customer experience
FlexTune
Volume Booster.
In-app purchases
FlexTune
No in-app purchases
Volume Booster.
- Volume Booster Premium Weekly$5.997 Days
- Volume Booster Premium Monthly$7.991 Month
- VolumeBooster Premium Lifetime$49.99
Questions
Is FlexTune free?
Is Volume Booster. free?
Which has better reviews, FlexTune or Volume Booster.?
Do FlexTune or Volume Booster. have ads?
Which is updated more often, FlexTune or Volume Booster.?
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