Reverse Audio PRO is the best reverse audio app for most people in 2026: it pairs one-tap reversal with 0.25×–3× speed control, ±12 semitones of pitch shift, and 10 stackable effects on both iPhone and Android. The strongest runner-up is Audacity — free and more powerful, but desktop-only. Between those two extremes sit five other options, compared below by price, platform, effects, exports, and ads.
Disclosure: Reverse Audio PRO is our app — here is how it stacks up honestly, including where it loses.
How do these reverse audio apps compare?
Price, platform, and export options separate these apps more than reversal quality does — flipping samples back to front is the easy part, and every app on this list gets it right. What actually varies: whether you can change speed and pitch after reversing, how many effects you can stack on the result, which file formats you can save, and whether ads interrupt the record–reverse–replay loop. The table summarizes the differences; the trade-offs for each app follow.
| App | Price | Platforms | Speed / pitch | Effects | Exports | Ads |
|---|---|---|---|---|---|---|
| Reverse Audio PRO | Free tier; Pro $4.99 once | iPhone, Android | 0.25×–3× speed, ±12 semitone pitch | 10 stackable | WAV, MP3, M4A | No |
| The Reverse Audio | Free | Android | Speed control | Echo, loop | Save/share | Yes |
| Reverse Audio (Nobutaka Yuasa) | Free | iPhone | x0.5–x2.0 speed, ±2 octave pitch | Reverse only | Save/share | Varies |
| Reverse Music Player | Free | Android | Varies by version | Reversed playback | Plays MP3, WAV, more | Varies |
| Challenge apps (Reverse Singing, etc.) | Free, often with IAP | iPhone, Android | Rare | Game modes | Video/social share | Usually |
| Audacity | Free | Windows, macOS, Linux | Full, manual | Dozens, plus plugins | WAV, MP3, FLAC, OGG | No |
| Online reverse tools | Free | Any browser | Rare | Reverse only | WAV | Varies |
Third-party pricing, ad behavior, and export options change often — check the store listing before you download.
Reverse Audio PRO — best for speed control and effects
Reverse Audio PRO treats reversal as the starting point, not the whole feature. Record from the mic or import a file, tap reverse, and the result plays instantly on a deck-style interface. Two sliders then reshape the sound: speed from 0.25× to 3×, and pitch across ±12 semitones — each adjustable independently, so a slowed clip does not have to drop in pitch. On top sit 10 effects: Loop, Echo, Reverb, Bass, Filter, Lo-Fi, Flanger, Wave Shaper, Robotize, and Compressor, which can be stacked. Everything processes on the device; recordings never leave the phone. Exports save as WAV, MP3, or M4A with no ads anywhere.
The free tier includes unlimited recording, reversing, and playback, plus 5 effect uses — enough to run the reverse audio challenge all evening without paying.
Pros
- Fastest record–reverse–replay loop of any app tested
- Independent speed and pitch sliders (0.25×–3×, ±12 semitones)
- 10 stackable effects; 3 export formats; no ads
- On-device processing — audio is never uploaded
Cons
- No desktop app
- All 10 effects require a one-time $4.99 Pro unlock; the free tier caps effects at 5 uses
- iOS and Android only
Best for: challenge clips, quick sound design, and anyone who wants speed and pitch control after the reverse.
The Reverse Audio — best free pick on Android
The Reverse Audio is a free, ad-supported Android utility that covers the basics competently: record or load a clip, reverse it, adjust playback speed, and add an echo or loop the result. That is the entire feature set, and for a one-off backwards-speech clip it is all you need. The workflow is short — pick audio, hit reverse, listen — which keeps it approachable for someone who has never edited audio.
The trade-offs are the usual free-app ones. Ads appear between actions, which slows down the rapid retry loop the reverse challenge depends on. Its feature list includes speed but not pitch shifting, so slowed clips shift character in ways you cannot correct. And it is Android-only, so an iPhone friend at the same table needs a different app.
Pros
- Free
- Reverse, speed, echo, and loop cover the essentials
- Simple enough for a first-time user
Cons
- Ad-supported, which interrupts repeated takes
- No pitch control listed; effects stop at echo and loop
- Android only
Best for: Android users who want a free reverser for occasional use and can tolerate ads.
Reverse Audio by Nobutaka Yuasa — simplest option on iPhone
This is one of the longest-standing reverse audio utilities on the App Store, and it has stayed deliberately minimal: record or import a sound, reverse it, play it back. There are no effect racks, no projects — a single screen focused on one job. That restraint is the appeal. Nothing to learn means nothing to get in the way, and for practicing reversed speech the record-flip-listen cycle is quick.
It does more than flip samples, though: playback rate is adjustable from x0.5 to x2.0 and pitch across ±2 octaves, so you can slow a reversed phrase down to study how to imitate it. What it lacks is a stackable effects rack. The spartan interface predates modern iOS design conventions, and there is no Android version, so it cannot be the shared app for a mixed group.
Pros
- About as simple as a reverse tool can be
- Long track record on the App Store
- Quick record–reverse–play cycle
Cons
- No stackable effects rack
- iPhone only
- Interface shows its age
Best for: iPhone users who want reversal and nothing else.
Reverse Music Player — best for playing full songs backwards on Android
Reverse Music Player approaches the problem from the listening side rather than the editing side. It is an Android player that loads common audio formats — MP3, WAV, and more — and plays them in reverse, which makes it suited to a specific job: listening through full-length tracks backwards. If you fell down the backmasking rabbit hole and want to hear what a whole album side sounds like reversed, a player beats an editor, because you are not trimming and exporting anything — just scrubbing and listening.
As an editor, though, it is limited. It is built around playback, so shaping the audio — trimming a phrase, stacking effects, exporting a polished clip — is not what it is for. Saving options are narrower than in editing-first apps, and like most of this list’s Android entries, there is no iOS counterpart.
Pros
- Plays full songs in reverse without an export step
- Handles multiple common audio formats
- Good fit for backmasking listening sessions
Cons
- Player first: minimal editing and limited saving options
- Android only
- Feature details vary between versions
Best for: reversed listening rather than reversed creating.
Reverse Singing and Say It Backwards-style apps — most fun, fewest controls
A cluster of apps — Reverse Singing, Say It Backwards, and similar titles on both stores — treat reversed speech as a game rather than an editing task. The app prompts a phrase, records your attempt at speaking it backwards, reverses your attempt, and plays back the result so the group can judge how close you got. Some add rounds, prompts, or share-ready video clips for posting the funniest fails.
For a party, that structure genuinely helps: nobody has to operate an editor, and the game keeps its own pace. The cost is control. These apps rarely expose speed, pitch, or effects, exports are usually limited to social-style sharing rather than clean audio files, and free versions commonly lean on ads or in-app purchases. When the group wants to slow a phrase down to actually learn it, a fuller tool like Reverse Audio PRO or a free audio reverser in the browser takes over.
Pros
- Zero learning curve; the game runs itself
- Built-in prompts and share features
- Works well in groups
Cons
- Little to no manual control over the audio
- Exports geared to social clips, not audio files
- Free tiers often ad- or IAP-heavy
Best for: game night, not audio work.
Audacity — most powerful, but desktop only
Audacity is the honest answer to “what is the most capable free tool for reversing audio?” It is a full open-source editor for Windows, macOS, and Linux: select a region, apply Reverse from the effects menu, and you are done — with sample-accurate selection, so you can reverse half a word if you want. Beyond reversal it offers dozens of built-in effects, plugin support, multi-track editing, batch processing, and exports to WAV, MP3, FLAC, OGG, and more. No ads, no purchase, no account.
The catch is in the workflow, not the software. There is no mobile version, so a clip recorded on a phone has to be transferred to a computer, edited, and transferred back — friction that kills the spontaneous record-reverse-replay loop the challenge runs on. The interface also assumes some editing literacy; for a 10-second backwards clip it is simply more tool than the job needs.
Pros
- Free and open source; the most capable option here
- Sample-accurate editing, plugins, batch processing
- Widest export format support on this list
Cons
- Desktop only — no iPhone or Android version
- File transfer friction for phone recordings
- Steeper learning curve than any mobile app
Best for: producers and podcasters already working at a desk.
What about free online tools?
For a one-off reversal with nothing installed, a browser tool is the fastest route. The free audio reverser on this site records from the microphone or accepts a dragged-in MP3, WAV, M4A, OGG, or WebM file, reverses it using the Web Audio API, lets you A/B the original against the reversed version, and downloads the result as a free WAV — all processed locally in the browser tab, with nothing uploaded to any server.
That last point deserves attention when choosing among online tools generally: many web-based reversers upload your file to their server for processing. For a meme clip that may not matter; for a private voice memo it should. Check what a tool says about uploads before dropping in anything sensitive.
The broader limitation of browser tools is depth. Most stop at reversal — no pitch shifting, no effect stacking, and speed control is rare. When a reversed clip needs to become something more produced, that is where a native app or Audacity picks up.
Pros
- Nothing to install; works on any device with a browser
- A well-built tool processes audio locally
- Free WAV download
Cons
- Usually reverse-only — no effects or pitch
- Many competing tools upload files to a server
- Needs a connection to load the page
Which reverse audio app should you choose?
Match the app to the job. For challenge clips with room to grow into speed tricks and effects, Reverse Audio PRO is the strongest all-round pick on both platforms — the walkthroughs for reversing audio on iPhone and reversing audio on Android show the full flow in a few steps. For a free, no-frills reverser on Android, The Reverse Audio does the job if the ads do not bother you; on iPhone, Nobutaka Yuasa’s app is the minimal equivalent. Reverse Music Player suits reversed listening to full tracks, the challenge-style games suit parties, and Audacity remains the free power tool for anyone working at a desktop. For a single quick clip with no install at all, the browser-based reverser covers it in under a minute.
Whichever tool you pick, the core loop is the same: record, reverse, listen, retry. The best app is the one that makes that loop fastest on the device already in your hand.