ConvertiSlowed vs Nofy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ConvertiSlowed
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Create the mood that fits you from your own tracks. ConvertiSlowed turns an audio file into slowed + reverb, nightcore, speed up or bass boost, right on your iPhone. IMPORT YOUR TRACK Choose an MP3, WAV, M4A, FLAC or OGG file from your phone. No account is required, and no track is ever sent to a server. TWEAK YOUR EDIT LIVE • Change speed from 0.5x to 2x • Add bass boost and reverb • Use Slowed + Reverb, Nightcore, Bass Boost and Speed Up presets • Hear the result instantly and fine-tune every setting EXPORT AND SHARE Export your edit as M4A or WAV, then share it with any app you choose. Exporting continues when your screen is locked or the app moves to the background. BUILT FOR PRIVACY All audio processing stays on your device. No account, no audio server and no microphone recording. Your first export is ad-free; an ad may occasionally appear before later exports.
Nofy
This app allows you to import and play your own audio files offline. Organize your music with custom playlists, edit track details, and adjust sound settings. Enjoy a clean, ad-free listening experience with background playback.
- Import and play local audio files
- Offline listening
- Custom playlist creation
- Edit track metadata and artwork
- Adjust audio effects (speed, bass, reverb)
- Background playback
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Nofy is an offline music player designed to give you more control over your personal audio library. Import audio files directly from your device, organize tracks into playlists, customize artwork and metadata, and enjoy a clean listening experience without accounts, ads, or streaming. With Nofy, you can: - Import and play audio files from your device - Listen offline without an internet connection - Create and manage custom playlists - Search and sort your music library - Customize track names, artists, and artwork - Adjust speed, bass, and reverb - Use built-in audio presets or create your own sound - Continue listening with background playback - Keep your music and settings stored locally on your device Nofy does not provide or download music. You choose the audio files you want to import and remain responsible for ensuring you have permission to use them. Your music. Your library. Your sound.
Screenshots
Verdict
The clearest difference is ads: Nofy at none against ConvertiSlowed's shown. On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ConvertiSlowed | Nofy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 | 16.4 |
| Further details — not scored | ||
| Size | 42 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Mickael Barthemy | Ali Alkholaki |
In-app purchases
ConvertiSlowed
No in-app purchases
Nofy
No in-app purchases









