D vs Rapper
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
D
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D-Chorus is a BBD-style spatial chorus for iPhone and iPad. Use it as a standalone audio app or insert the included AUv3 effect in a compatible host such as GarageBand. Designed for width with minimal audible pitch wobble, D-Chorus combines very slow, shallow modulation with opposite-phase left and right movement. Its four modes range from subtle widening to a deep, expansive chorus that feels more like space than an obvious sweep. FEATURES - Four vintage spatial-chorus modes - Opposite-phase left and right modulation - Equal-power Depth dry/wet blending - Width control from mono to hyper-wide - Adjustable input gain from -12 to +12 dB - BBD-style delay and compander behavior - Optional 2x and 4x oversampling - Standalone iOS/iPadOS app - AUv3 audio effect for compatible hosts TRY BEFORE UNLOCKING The app provides 10 minutes of full-featured active use, shared between the standalone app and AUv3 extension. Demo time advances only while audio is actively processing. A one-time, non-consumable In-App Purchase unlocks unlimited use in both formats. Restore Purchases is available in the standalone app. D-Chorus is suited to synthesizers, guitars, vocals, electric piano, and pads that need stable dimension and stereo depth.
Rapper
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Turn any idea into a real rap song โ bars written, beat produced, artwork generated โ in seconds, for free. No studio. No ghostwriter. No subscription. Rapper is the AI that sits in your corner and builds a complete track from whatever's on your mind. Type a concept, speak it out loud, and the song comes to life before you finish your sentence. The bars are built for the genre you pick โ not copy-paste filler but real verses, hooks, and flows tuned to your vibe. Trap, drill, boom bap, melodic rap, lo-fi hip-hop, west coast โ choose your lane and the AI locks in with the right energy, cadence, and wordplay for that sound. Every track drops with a produced beat that matches your style and tempo. Pull up the full-screen player and you get the whole experience โ cover art, synced scrolling lyrics, and a scrubber to move through the song. It's not just a text output. It's a real track. Save everything to your personal library. Rename it, cache it offline, delete what doesn't hit. When you've got something fire, share it with a single public link โ one tap and you're putting people on to your sound. No account required to start. No subscription. No paywall. Rapper is completely free because the come up shouldn't cost anything. Generate tracks in multiple languages and bring your sound to wherever you're building from. Stuck on what to make? Starter Ideas kick off a track instantly so you never freeze on a blank page. One tap and you've already got a direction. Your next song is one idea away. Drop it in.
Screenshots
Verdict
The clearest difference is in-app purchases: Rapper at none against D's 1. D's advantage is ads (none vs shown) and iOS requirement (16.0 vs 18.0). On price and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. D sells 1 one-off in-app purchase. Rapper asks for nothing beyond the download.
| Parameter | D | Rapper |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 3 weeks |
| Ads | No โ better | Yes |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 16.0 โ better | 18.0 |
| Further details โ not scored | ||
| Size | 28 MB | 10 MB |
| Age rating | 4+ | 12+ |
| Developer | Shoma Kondo | Konrad Sierzputowski |
In-app purchases
D
- D-Chorus Full Version$4.99
Rapper
No in-app purchases









