Comparison

ConvertiSlowed vs ReSoul

Price, ratings, monetisation and update history for both apps, side by side โ€” 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 โ€ข Change speed from 0.5x to 2x โ€ข Add bass boost and reverb โ€ข Use Slowed + Reverb, Nightcore, Bass Boost and Speed Up presets โ€ข 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

ReSoul

Features
Read full description

Turn your stereo mix into a finished master, with the measurements to understand what you delivered. Import a track, choose a starting point and shape the sound. ReSoul keeps analysis, mastering and export on your device. START WITH THE SONG Smart Master analyzes your track and suggests a restrained starting point. Explore genre profiles or take control of the mastering deck yourself. HEAR YOUR DECISIONS Compare Before and After while adjusting tone, dynamics and stereo character. Waveforms, spectrum and loudness meters help you see what changes. CHECK THE FILE YOU DELIVER Export 24-bit WAV, MP3 or AAC/M4A. ReSoul checks the completed file and reports its loudness and true peak, with measurements for the selected format. The live After signal is a processing preview. Export applies the full mastering chain and verifies the delivered file, so the export report is the record of the final result. YOUR WORKSPACE, YOUR STYLE Choose Studio, Edition, Emission, Electric Tide, or Ultraviolet Bloom. Keep everyday mastering actions close and open detailed controls when you need them. Import unprotected WAV, AIFF, FLAC, MP3 or M4A files. Protected streaming-library tracks are not supported. One purchase for iPhone, iPad and Mac includes unlimited exports. No subscription, account or additional export unlock.

Screenshots

ConvertiSlowed2 screens
ReSoul4 screens

Verdict

The call

The clearest difference is price: ConvertiSlowed at Free against ReSoul's $9.99. ReSoul's advantage is ads (none vs shown) and update cadence (every 9 days vs monthly). On in-app purchases, device support and iOS requirement 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

ConvertiSlowed is free to download; ReSoul costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ConvertiSlowed ships an update monthly, ReSoul every 9 days. Both last shipped on October 31, 2026.

Scorecard3 real differences ยท 5 level
ConvertiSlowed versus ReSoul: the parameters behind the verdict, then further details
ParameterConvertiSlowedReSoul
PriceFree โ€” better$9.99
Positive reviews100.0% of reviewsโ€”
Update frequencyMonthlyEvery 9 days โ€” better
AdsYesNo โ€” better
In-app purchasesNoNo
MonetizationAd-supportedโ€”
DevicesiPhone, iPadiPhone, iPad, Mac โ€” better
Requires iOS16.4 โ€” better17.0
Further details โ€” not scored
Size42 MB10 MB
Age rating4+4+
DeveloperMickael BarthemySteven smith

In-app purchases

None

ConvertiSlowed

No in-app purchases

None

ReSoul

No in-app purchases

Questions

Is ConvertiSlowed free?
ConvertiSlowed is free to download, with no in-app purchases.
Is ReSoul free?
ReSoul costs $9.99, with no in-app purchases.
Do ConvertiSlowed or ReSoul have ads?
ConvertiSlowed shows ads; ReSoul does not.
Which is updated more often, ConvertiSlowed or ReSoul?
ConvertiSlowed ships an update monthly, and ReSoul every 9 days. Most recently, ConvertiSlowed was updated on October 31, 2026 and ReSoul on October 31, 2026.

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