Groovebox vs loudness CORRECT · Normalizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Groovebox
Create electronic music with this mobile studio app. Features inspiring synths, drum machines, and world-class instruments. Easily build beats, melodies, and arrange tracks for production.
- Beat and synth music studio
- Touchable instruments for melodies and beats
- Five powerful instruments: Drumbox, Horizon, MiniMon, RetroBass, Poly-8
- Arrange tracks with sections
- Record synth parameters as automation
- Ableton Link and Ableton Export for collaboration
- Expandable instruments and sound packs
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If you love making electronic music, you’ll love Groovebox. Enter an inspiring world of music production on your iPhone & iPad. Groovebox is a free, beautifully designed music studio app packed with inspiring synths and drum machines. In minutes you’ll be making beats, melodies, and playing with world-class instruments. Expand your own collection with more sounds and instruments available in the store. From the creators of Launchpad, Groovebox helps you produce music on iPhone & iPad. • A BEATS & SYNTH MUSIC STUDIO Play with touchable instruments to quickly create your own beats and melodies, or draw in notes. Need inspiration? Groovebox has hundreds of patterns and sounds to get you started. Four powerful synthesisers, designed in partnership with Novation, deliver deep retro basslines and analogue harmonic melodies. The modern drum machine, with expanding drumkit library, will turn Groovebox into your go-to beat production studio. • SYNTHS DESIGNED WITH NOVATION Designed in partnership with Novation, legendary synth pioneers, Groovebox packs a world-class sound. Each instrument uses a new powerful synth engine capable of recreating classic warm analogue sounds and rich modern harmonics. • EASY TO START, DEEP ENOUGH TO MASTER Groovebox is designed to kick-start ideas, but it has serious features for artists and producers too. The advanced synth parameters* let you sculpt your own sounds. Automate the parameters over time to create a vibrant dynamics. Control your sound with the multi-channel mixer (iPad only), note sequencer, key and scale modes. Build your arrangements into songs with sections. Export your sounds easily to a laptop for further production. Sync to other apps or a laptop with Ableton Link. Connect using Audiobus, Inter-App Audio and even Export to Ableton Live seamlessly. FEATURES • Discover and build ideas - Quickly explore sounds with hundreds of melody and rhythm patterns • Play touchable instruments - Create your own melodies and beats • Five powerful instruments - Drumbox, Horizon, MiniMon, RetroBass and Poly-8 • Build beats - Play drum pads or keys, sequence notes or use patterns • Arrange your tracks - Simple song-building using sections • Create dynamic changes - Record synth parameters as automation • Sound innovation - Instruments developed in partnership with synth pioneers Novation • Expand your sounds - Regular, fresh-content drumpacks, presets and patterns* • Production-ready sounds - Crafted by world-class sound designers and artists • Extendable Instruments - Expose more tweakable synth controls • Sequence your music - Draw notes and build patterns instead of playing them • Stay in time and key - Choose from any tempo, key or musical scale • Share your music - Easily create a mix of your music to share with others *Requires In-App Purchase ADVANCED FEATURES • Jam with others - Audiobus, Inter-App Audio, Ableton Link and Ableton Export • Swing - Instantly add swing to your session. • Ableton Export - Easily send your project to Ableton Live • Full scale support - All keys and major, minor and modes supported • Project management - Rename, duplicate and delete • iPad Pro support - Optimised to use the entire iPad Pro screen • Send your ideas to a laptop - Batch export your pads as a .zip file, or use Ableton Export • Bluetooth speaker supported
loudness CORRECT · Normalizer
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loudness CORRECT measures, corrects and verifies your audio to any broadcast or streaming loudness spec — fully offline, on iPad and iPhone. Pick a file, pick a preset, correct. The two-pass pipeline measures the source to ITU-R BS.1770-4, plans the gain move, writes a new file and re-verifies the result — so what leaves the app is provably on target, not just close. WHY IT'S DIFFERENT • Verified output: auto-verify and refine until the residual error is under 0.1 LU. No guessing, no manual re-check. • Transparent loudness range control: a continuous 3-band reshape (Linkwitz-Riley) works toward the programme level — it tightens loud passages and lifts quiet ones with no threshold and no pumping. • True-peak safe: 4× oversampled inter-sample peak limiter with 5 ms look-ahead keeps you under the ceiling on every platform. 14 DELIVERY PRESETS EBU R128, EBU R128 S1, ATSC A/85, ARIB TR-B32, AGCOM 219/09, FreeTV OP-59, DPP UK, Portaria 354, OTT -27 LUFS, Apple Podcasts, Spotify, Amazon Music, YouTube, and a fully editable Custom preset. MULTICHANNEL From mono and stereo through 5.1 and 7.1 up to 9.1.6 Atmos bed layouts — BS.1770-correct per layout, with LFE exclude and proper surround weighting. FORMATS Input: WAV, AIFF, FLAC, OGG, MP3, M4A Output: WAV, AIFF, FLAC • K-weighted ITU-R BS.1770-4 measurement (integrated, range, true peak) • Dark, focused UI — German and English • No account, no login, no network calls — your files never leave your device MADE FOR Mastering engineers, broadcast and post editors, podcast and audiobook producers, sound designers — everyone who has to hit a delivery loudness target quickly, cleanly and provably.
Screenshots
Verdict
The clearest difference is price: Groovebox at Free against loudness CORRECT · Normalizer's $17.99. loudness CORRECT · Normalizer's advantage is in-app purchases (none vs 10) and update cadence (every 2 weeks vs every 6 weeks). On ads, device support and iOS requirement 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
Groovebox is free to download; loudness CORRECT · Normalizer costs $17.99 up front. Groovebox sells 10 one-off in-app purchases. loudness CORRECT · Normalizer asks for nothing beyond the download.
Groovebox ships an update every 6 weeks, loudness CORRECT · Normalizer every 2 weeks. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.
| Parameter | Groovebox | loudness CORRECT · Normalizer |
|---|---|---|
| Price | Free — better | $17.99 |
| Rating | 4.7 (4.7K ratings) — better | — |
| Positive reviews | 79.2% of reviews | — |
| Number of ratings | 4.7K — better | — |
| Update frequency | Every 6 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 44 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Focusrite Audio Engineering | Sascha Hoemske |
Bugs and requests
Groovebox
Reported bugs
4 issues- Crashes when exporting projects
- Playback issues with certain patterns
- Disappearing UI elements when scrolling
- Inconsistent behavior when changing sections
Requested features
6 requests- Add song mode and ability to chain sections
- Improve piano roll and note editing
- Implement MIDI support and mapping
- Add more export options like MIDI and multi-track
- Implement iCloud sync and cloud backup
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- Add panning and more advanced mixing features
loudness CORRECT · Normalizer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Groovebox
- Trap BassFree
- Sequential ArpsFree
- Ambient Hip HopFree
Show 7 moreShow fewer
- Dirty 909Free
- Hip Hop OrbitFree
- Hypnotic BassFree
- Golden Era Bass$0.99
- Neuro Leads$0.99
- Composed Melodics$0.99
- Drum Booster$1.99
loudness CORRECT · Normalizer
No in-app purchases
Questions
Is Groovebox free?
Is loudness CORRECT · Normalizer free?
Do Groovebox or loudness CORRECT · Normalizer have ads?
Which is updated more often, Groovebox or loudness CORRECT · Normalizer?
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