Comparison

BLEASS Slow Machine vs Song Chef

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

Head to head
About

BLEASS Slow Machine

This music effect app offers creative ways to manipulate audio, allowing you to slow down tracks, create tape stop effects, and program speed variations. It provides precise control over rhythm, pitch, and timing for unique sound design.

Highlights
  • Creative slow down effect
  • Tape stop effect with performance controls
  • Speed sequencer for programmed variations
  • Adjustable loop size and speed
  • Filter for frequency band control
  • Multiple time stop modes
Currently charting
Read full description

Thanks to 3 different yet complementary ways of manipulating time with creativity, BLEASS Slow Machine can deepen any beat by completely or partially slowing down the audio signal, transform epic leads into heavy basses, and add some “tape stop” effect with precision either by touching the X/Y Stop trigger, or by dialing in precise sequence automations. TECHNICAL DESCRIPTION: BLEASS Slow Machine offers both sequenced and live ways to manipulate time thanks to 3 stages: ____ SLOW DOWN stage: Creative and straightforward slow down effect that modulates both rhythm and pitch. - Loop Size: Slow Down resets its reading position according to the Loop Size. A Loop Size of ‘1 bar’ means that the reading position is resynced with the host reading position every 1 bar. - Speed: controls the speed of the played loop relative to the default speed. (For example ‘½’ means that audio is played back at half its original speed, which means one octave lower). - Quantization: When this option is ON, every change in Loop Size and in Speed will wait until the end of the current loop to be effective. When it is set to OFF, the change is immediate. - Filter: keep a selected frequency band of the slowed signal. When the filter is ON, the middle colored band is processed by the effect while the low and high bands remain unchanged. - Fade: Sets the duration of the crossfade between loops. - State: Activates or deactivates the SLOW DOWN stage - Dry/Wet: mixes the dry and wet signals ____ TIME STOP stage: Especially made for performance, TIME STOP gives an intuitive and visual way to instantly create a classic tape stop effect. - Trigger: the “Stop” button triggers the time stop effect within a given duration (set by the position of your finger along the Y-axis) and following a curve (set by the position of your finger along the X-axis). - Mode: choose between 4 time stop modes: ‘Step’, ‘Ramp Up & Down, ‘Ramp Down’ and ‘Ramp Up’. _ In ‘Step’ mode, the speed instantly goes to 0 when the trigger is hit and goes back to 1 when the trigger is released. _ In ‘Ramp Up & Down’ mode the speed is ramped down to 0 when the trigger is hit and ramped up to 1 when it is released. The duration and curve of the ramp is set by the position of your finger on the control. _ In ‘Ramp Down’ mode, the speed is ramped down to 0 when the trigger is hit and instantly goes back to 1 when released. _ In ‘Ramp Up’ mode the speed instantly goes to 0 when the trigger is hit and is ramped up to 1 when released. - Hold: when Hold is ON, the trigger is not released until Hold is turned OFF. - Speed: precise control of the play speed. - State: Activates or deactivates the TIME STOP stage - Dry/Wet: mixes the dry and wet audio signals ____ SPEED SEQUENCER stage: The speed sequencer stage offers a unique way to program speed variations in your music. - Length: sets the number of steps in the sequencer. - Resolution: sets the duration of a sequencer step. - Grid Snap: when ON, steps snap to the grid allowing a precise rhythmic and harmonic editing. - Sequencer: sets a playing speed per step. Each step has 4 different curve modes: ‘Step’, ‘Link’, ‘Ramp Up’ and ‘Ramp Down’. Change the curve mode by tapping the curve icon at the bottom of each step. - Amount: controls the amount of sequencer speed modulation. 100% means that speed can go from 1 to 0 (50% means that speed can go from 1 to 0.5). - Randomness: sets the amount of randomness of the sequencer. If randomness is 50%, a step value will be a random value between stepValue +/- 0.5 - Fade: controls the crossfade duration between each step. - State: Activates or deactivates the Speed Sequencer stage - Dry/Wet: mixes the proportion of dry and wet signals Check out www.bleass.com for video tutorials and more info! * PLEASE NOTE: this is an Audio Unit Effect plugin (AUv3) which requires a compatible host such as AUM, GarageBand, Cubasis, BM3 or Auria. Standalone mode also available for demo purposes.

About

Song Chef

Create personalized songs from your spoken messages. Simply provide your voice, message, and choose a style, and the app crafts custom lyrics and music. Share your heartfelt creations as audio or text with lyrics.

Highlights
  • Speak-synced vocals
  • Dozens of song styles
  • Custom lyric generation
  • Audio or text + lyrics output
  • Save creations to device
Features
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Song Chef turns your feelings into custom songs — in your voice. It’s not how it sounds - It’s what it says. No music skills required - just your voice, message, and heart. Not a singer? No problem. This isn’t about hitting notes — it’s about hitting what you want to say. Perfect for: • Love / Romance (Simple love songs, Second Base, Anywhere With You, Kiss and Make Up, more..) • Birthday surprises • Apologies (I'm sorry) • Thank You • Encouragement • Congratulations & Milestones (Graduation) • Holidays (Mother's Day, Father's Day, Christmas, Hanukkah, Happy New Year, Fourth of July) • Friendship (Say Something Nice) • Songs about your dog (Ruff!) • Sweet messages to friends and family Features: • Speak-synced vocals (no singing needed) • Dozens of styles and “recipes” • Custom lyrics created from your answers • Send as audio or text + lyrics • Save your creations on your device. Whether you want to say “I love you,” “I’m sorry,” or “I miss you,” Choose a theme, answer a few questions, and Song Chef writes lyrics, adds music, and syncs your voice to the beat.

Screenshots

BLEASS Slow Machine3 screens
Song Chef4 screens

Verdict

The call

The clearest difference is in-app purchases: BLEASS Slow Machine at none against Song Chef's 2. BLEASS Slow Machine also leads on ratings volume (38 vs 1) and chart position (#194 vs unranked). Song Chef's advantage is update cadence (every 10 days vs every 28 months) and price ($0.99 vs $6.99). On ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

BLEASS Slow Machine costs $6.99 and Song Chef $0.99 up front. Song Chef sells 2 in-app purchases, starting at $5.99 per month. BLEASS Slow Machine asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Song Chef holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: BLEASS Slow Machine has 38 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

BLEASS Slow Machine ships an update every 28 months, Song Chef every 10 days. The most recent releases landed on October 29, 2026 and October 10, 2026 respectively.

Scorecard8 real differences · 3 level
BLEASS Slow Machine versus Song Chef: the parameters behind the verdict, then further details
ParameterBLEASS Slow MachineSong Chef
Price$6.99$0.99 — better
Rating4.6 (38 ratings)5.0 (1 ratings) — better
Positive reviews81.8% of reviews—
Number of ratings38 — better1
Update frequencyEvery 28 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
Best chart rank#194 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.6
Further details — not scored
Size27 MB155 MB
Age rating+44+
DeveloperBLEASSSong Chef LLC

Customer experience

BLEASS Slow Machine

All ratings38 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews11 reviews
Positive81.8%
Neutral0.0%
Negative18.2%

Song Chef

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BLEASS Slow Machine

No in-app purchases

2 purchases

Song Chef

Subscriptions2
  • Unlimited access$5.991 Month
  • Song Chef Premium$39.991 Year

Questions

Is BLEASS Slow Machine free?
BLEASS Slow Machine costs $6.99, with no in-app purchases.
Is Song Chef free?
Song Chef costs $0.99, and also offers in-app purchases.
Which has better reviews, BLEASS Slow Machine or Song Chef?
Song Chef is rated higher. BLEASS Slow Machine averages 4.6 out of 5 from 38 ratings, while Song Chef averages 5.0 from 1 ratings.
Do BLEASS Slow Machine or Song Chef have ads?
Neither BLEASS Slow Machine nor Song Chef shows ads.
Which is updated more often, BLEASS Slow Machine or Song Chef?
BLEASS Slow Machine ships an update every 28 months, and Song Chef every 10 days. Most recently, BLEASS Slow Machine was updated on October 29, 2026 and Song Chef on October 10, 2026.

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