Denoise

Denoise is an audio cleanup app for Android and iOS that uses an on-device neural network to reduce wind, traffic, hiss, hum, and crowd noise in voice memos, interviews, and videos. Because processing runs locally, it can work offline, including in airplane mode. Recordings can be imported from Voice Memos, Photos, Files, or another app’s share sheet; supported types include MP4, M4A, MP3, and WAV. Pro can export M4A, MP3, or WAV files and replace audio inside a video. Its VoiceFixer engine can rebuild detail in clipped, muffled, or distant recordings, and version 4.0 separates vocal and instrumental tracks on-device. Audio tools include a five-band EQ with presets and automatic loudness normalization. There is no file-length limit, including for recordings up to a three-hour lecture. Recordings are not uploaded or stored by Routes Software, though Google Firebase collects anonymous usage analytics and diagnostic information. Free users can process and preview audio, but saving or exporting requires Pro. Pro costs $2.99/mo or $14.99 once.

Denoise offers local noise cleanup and audio tools, with saving and export reserved for Pro. Consider the free preview workflow and the listed Pro prices before choosing.

Denoise may suit podcasters, creators, journalists, students, and others who want to clean up recordings. Its offline processing and broad import options may be useful for people working with audio or video files on a phone.

Denoise is a mobile app for reducing noise and improving audio in recordings and videos on Android and iOS. It is best suited to people who want private, offline cleanup on a phone; the free plan lets you preview the result, but saving it requires Pro.

Overview

Denoise uses an on-device neural network to target wind, traffic, hiss, hum and crowd noise in voice memos, interviews and videos. It also offers echo and reverb removal and voice isolation. Processing works in airplane mode, and a one-minute clip typically takes 5–10 seconds, making it practical for quick edits without a network connection. Its mobile focus is a drawback for anyone who needs a desktop workflow.

Import audio from Voice Memos, Photos, Files or an app’s share sheet, including MP4, M4A, MP3 and WAV. There is no file-length limit, even for a three-hour lecture. Free users can hear the full before-and-after result, but cannot save, share or export it—a significant restriction if you need a finished file rather than a preview.

Key features

Pro’s VoiceFixer engine goes beyond noise reduction: it can rebuild detail in clipped, muffled or distant recordings and add high frequencies that were not captured. That gives it a role in salvaging imperfect interviews and lectures, not just cleaning up background sound. These restoration tools are useful only if you can export the result.

Version 4.0 adds on-device separation of vocals and instrumental tracks from songs or video soundtracks, with acapella, instrumental and karaoke results. A five-band EQ includes Voice, Phone Call, Lecture and Music presets, while automatic LUFS normalization offers −16, −14, −19 or −23 settings. Together, these controls support several common listening and editing goals, though the app remains a mobile tool rather than a full desktop production environment.

Pro can export M4A, MP3 or WAV files and replace the audio inside a video. Batch processing is supported, and there is no file-length cap on either plan. Recordings are processed on the device and are not uploaded or stored by Routes Software; no user account is required. Google Firebase collects anonymous usage analytics, crash and diagnostic reports, a random app identifier and an optional push-notification token.

Pricing

Free to try costs $0/to start. It includes importing, denoising and a full before-and-after preview, but saving and export require Pro. It is a reasonable way to judge whether the cleanup helps, not a usable free export tier.

Pro monthly costs $2.99/mo and adds saving, sharing and export in M4A, MP3 and WAV, video-audio replacement, VoiceFixer restoration, vocal and music separation, and LUFS loudness controls. Choose it if you need these tools temporarily or prefer a monthly commitment.

Pro lifetime costs $14.99 once and includes the same Pro features, described as yours forever. It is the better fit for regular use if you prefer a single payment; occasional users may find the free preview sufficient. Denoise has no free trial.

Platforms

Denoise runs on Android and iOS. On-device processing and offline operation are useful when connectivity is limited, but the platform range will not suit someone looking for a desktop app.

Who it's for

Podcasters, creators, journalists and students can use Denoise to clean up interviews, voice memos, videos or long lectures without uploading recordings. It is also relevant to anyone who wants to separate vocals or adjust audio on a phone. If you need to keep finished files without paying, or work primarily on desktop, this is not the right fit.

Pros and cons

• Pro: On-device processing works offline and keeps recordings from being uploaded or stored by Routes Software.
• Pro: No file-length limit accommodates long recordings, including a three-hour lecture.
• Pro: Noise cleanup, restoration, vocal separation, EQ and loudness controls cover more than one audio-fixing task.
• Con: Free users cannot save or export, so the preview alone cannot produce a finished file.
• Con: Android and iOS support leaves desktop-focused workflows out.
• Con: Firebase collects usage and diagnostic data, an app identifier and an optional push-notification token, despite local audio processing.

Alternatives

Choose MusiCraft AI Audio Enhancer if you want a web-based option and can work within its free allowance of 50 credits and two editing runs per month. Neural Analog may suit a desktop or API workflow across Linux, macOS, Windows and web, but its free plan limits imports, uploads, processing time and input length.

Decrackle Audio AI is an alternative for web, API or self-hosted use; its free tier caps storage at 10 MB and processing at 30 minutes per month, and exports MP3 only. Selekt Audio Restoration is a web-based option with a seven-day free trial that requires a payment method and renews at $5/month or $50/year unless canceled.

PD Cleaner is a free, open-source Windows 64-bit option with no account or trial. Cathar is a free alternative for Linux and macOS. CEDAR Cambridge is a paid modular hardware and software system for macOS and Windows with custom pricing. Cine Sound is a paid web alternative.

For broader browsing, see AI Audio Restoration Software, AI Speech Enhancement Software and AI Voice Isolators.

Verdict

Denoise is a strong fit for mobile users who need offline, private cleanup and value its mix of denoising, restoration and vocal separation. The no-length-limit workflow and $14.99 one-time Pro option are compelling for regular use. Look elsewhere if you need desktop editing or expect a free plan to save the audio it cleans.