Comparison

ConvertiSlowed vs SHIFT

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ConvertiSlowed

Easily transform your audio files into unique soundscapes with slowed + reverb, nightcore, or bass boost effects. This app processes audio directly on your device for enhanced privacy. Export your creations in various formats and share them instantly.

Highlights
  • Apply slowed + reverb, nightcore, speed up, and bass boost effects
  • Adjust audio speed from 0.5x to 2x
  • Live audio tweaking with instant results
  • Import MP3, WAV, M4A, FLAC, or OGG files
  • Export audio as M4A or WAV
  • On-device audio processing for privacy
  • Background export functionality
Features
Read full description

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.

About

SHIFT

Read full description

SHIFT changes the tempo, speed, pitch and key of any song, live, right on your iPhone. Open a track, move it to the BPM or key you need, compare it with the original, and export the result. TEMPO • Set the exact BPM: type it, tap it, or nudge by 0.1 or 1 BPM • Keep key on to change the tempo without touching the pitch • Half and double time, from ½× to 2Ɨ the original • See the new length before you export PITCH AND KEY • Shift by semitones and fine-tune by cents • Tap a target key and SHIFT works out the move. Minor stays minor • Preserve formants to keep vocals natural, or shift formants on purpose • Correct a track recorded slightly sharp or flat to A440 SPEED • Turn Keep key off for varispeed: tempo and pitch move together, the way slowed and sped-up edits sound ADVANCED XY • Drag one pad to move tempo and pitch at once • Lock either axis, snap pitch to semitones, and pick Fine, Normal or Wide response PARTS AND LOOPS • Select any part of the song on the detailed waveform and loop it • Give a part its own tempo and key while the rest of the song stays as it is KNOW YOUR TRACK • SHIFT detects the original tempo and key, with Camelot numbers for DJs • Correct either one by tapping along or picking it yourself COMPARE AND EXPORT • Switch between Original and Processed at the same spot, any time • Choose Draft, Balanced or High processing quality • Export WAV 24-bit, WAV 16-bit (dithered), AAC 256 kbps or Apple Lossless • Export the whole track or just your selection, saved to Files and ready to share • Add artwork and edit the song name and artist Opens WAV, AIFF, MP3, AAC/M4A, Apple Lossless and FLAC. Everything runs on your iPhone, and nothing you open is uploaded. FREE AND PRO Try every control on any 30 seconds of a song, and on the full built-in demo. SHIFT Pro is a one-time purchase that opens whole songs of any length and unlocks export. No subscription. Songs from Apple Music and other streaming services are protected and can't be opened.

Screenshots

ConvertiSlowed2 screens
SHIFT4 screens

Verdict

The call

The clearest difference is in-app purchases: ConvertiSlowed at none against SHIFT's 1. SHIFT's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. SHIFT sells 1 one-off in-app purchase. ConvertiSlowed asks for nothing beyond the download.

Scorecard2 real differences Ā· 6 level
ConvertiSlowed versus SHIFT: the parameters behind the verdict, then further details
ParameterConvertiSlowedSHIFT
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyMonthly—
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.0 — better
Further details — not scored
Size42 MB1 MB
Age rating4+4+
DeveloperMickael BarthemyEchelon Audio

In-app purchases

None

ConvertiSlowed

No in-app purchases

1 purchases

SHIFT

One-time1
  • SHIFT Pro$7.99

Questions

Is ConvertiSlowed free?
ConvertiSlowed is free to download, with no in-app purchases.
Is SHIFT free?
SHIFT is free to download, with in-app purchases available.
Do ConvertiSlowed or SHIFT have ads?
ConvertiSlowed shows ads; SHIFT does not.

Other comparisons