Comparison

Beat Time! vs AloneQuartet Prepaid

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

Head to head
About

Beat Time!

This app allows musicians to practice and transcribe audio and video by changing tempo and pitch without affecting quality. It offers advanced features like note and chord detection, seamless looping, and annotation tools. Play content from various sources, including your device library and YouTube.

Highlights
  • Time stretch audio/video (1/4x to 2x)
  • Pitch shift audio/video (up to 1 octave)
  • Natural pitch shifting for voices
  • Note and chord detection
  • Seamless looping with optional pause
  • Annotate tracks with markers
  • Play YouTube videos
Features
Read full description

Beat Time plays audio & video and can change the tempo (time stretch) and/or pitch and does note & chord detection. It is aimed as a practice / study tool for musicians and as a helper tool for transcribing audio & video. Play audio & video from your iPod library, dropbox, iTunes file sharing or open from other apps. Reviews: "Beat Time! is a gem of an app that's just waiting for musicians around the world to discover it. It's almost to good to be true! You've got to check it out!!" Jordan Rudess Dream Theater/Wizdom Music. "I've used plenty of slow downer type apps, and this is among the best! It does what it says and does it well" Evp73 "It's amazing how you can hear virtually NO artefacts in the audio! Amazing!" jenius92000 Main app features: • Time stretch video and audio from 1/4x to 2x without affecting pitch. • Pitch shift audio and video up to an octave up or down. • Natural pitch shifting, pitch shift a male voice keeping it sounding male, pitch shift a female voice keep it sounding female. • High quality, state of the art, time stretching / pitch shifting using DIRAC technology. • Pitch analysis for note & chord detection. • Annotate the track with multiple markers. • Seamless looping of segments in the track. • Optionally pause between loops. • Easy file transfer: Open audio/video files from any app that supports iOS "Open In..." menu. • Play YouTube videos. • Open tracks from your iPod audio, video library or video camera roll • Export time stretched / pitch shifted audio or movies. • Universal application (iPhone/iPod/iPad). • Supports video and audio formats that are playable using iOS music/video player, including: mp4, m4v, m4a, mp3, WAV, mov, (AVI provided it's mpeg 4 encoded) See Jordan Rudess playing with Beat Time! at http://bit.ly/GO67NQ

About

AloneQuartet Prepaid

Easily create multi-panel videos by recording footage in up to four separate sections. Switch cameras, overlay recordings, and adjust individual audio levels for each panel. Save and import videos from your camera roll with no time limits.

Highlights
  • Record in 4 separate panels
  • Switch between front/rear cameras
  • Overlay new recordings
  • Import/export videos
  • Individual volume control
  • Video trimming
  • Built-in metronome
Features
Read full description

This is the prepaid version of the app with the same name. Please use this version if you need prepayment for Apple School Manager, etc. AloneQuartet is an app that makes it super easy to create 4-panel split videos. ◆Features - Record videos in each of the 4 panels using the camera - Switch between front and rear cameras - Record new videos while watching previously recorded panels - Save recorded videos to camera roll - Import videos from camera roll - No time limit for long recordings - Real-time microphone feedback during recording - Bluetooth headphone and speaker support - AirPlay device compatibility - Built-in click function (simple metronome) - iPad large screen support - Individual volume control for each panel - Video trim function to set start/end times ◆How to use ◆◆Preview Tap any of the 4 panels to display camera preview. ◆◆Camera switching Press CAMERA on the right to switch between front and rear cameras. ◆◆Recording Press REC on the right while in preview mode to start recording. ◆◆Overlay recording When you start recording, previously recorded panels will play back while the target panel records. ◆◆Playback Press PLAY on the right to start playback. ◆◆Stop Press STOP on the right to stop recording/playback. ◆◆Mix Press MIX on the right to go to the MIX screen. Select the mix format and press preview or save to mix. ◆◆Volume control Adjust individual volume for each panel with volume sliders. Create balanced audio during mixing. ◆◆Video trim Set start/end times for recorded videos. Extract only needed parts for precise editing. ◆◆Data saving Save data to Photos app. Press the button at the top right of a panel and select save to Photos. ◆◆Data loading From an empty panel, press the top right button and select load from Photos. ◆◆Metronome function From SETTINGS, turn on click sound and set volume, tempo, etc. Click sound starts when recording begins. ◆◆Audio feedback function From SETTINGS, turn on audio feedback and set volume, etc. You can hear input audio through headphones. ◆◆iPad support Supports iPad sizes with wider, more visible screens. Also supports iPad Pro multiple screens. ◆◆Multi-language support Supports Japanese, English, Chinese (Simplified/Traditional), Korean, French, and Spanish. Thank you for reading. We plan to add more convenient features in the future, so please look forward to it.

Screenshots

Beat Time!2 screens
AloneQuartet Prepaid4 screens

Verdict

The call

The clearest difference is review sentiment: Beat Time! at 62% against AloneQuartet Prepaid's 0%. Beat Time! also leads on rating (3.4 vs 2.0) and ratings volume (72 vs 1). AloneQuartet Prepaid's advantage is price ($2.99 vs $6.99) and iOS requirement (15.6 vs 18.0). On update cadence, ads, in-app purchases and monetization model 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

Beat Time! costs $6.99 and AloneQuartet Prepaid $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Beat Time! holds the better App Store score, 3.4 against 2.0. That said, the two scores are not equally well evidenced: Beat Time! has 72 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 62% of Beat Time!'s written reviews are positive against 0% of AloneQuartet Prepaid's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 5 level
Beat Time! versus AloneQuartet Prepaid: the parameters behind the verdict, then further details
ParameterBeat Time!AloneQuartet Prepaid
Price$6.99$2.99 — better
Rating3.4 (72 ratings) — better2.0 (1 ratings)
Positive reviews62.3% of reviews — better0.0% of reviews
Number of ratings72 — better1
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.6 — better
Further details — not scored
Size44 MB3 MB
Age rating17+4+
DeveloperGuy ShavivNaoto Sasaki

Customer experience

Beat Time!

All ratings72 ratings
Positive58.3%
Neutral8.3%
Negative33.3%
Written reviews146 reviews
Positive62.3%
Neutral6.8%
Negative30.8%

AloneQuartet Prepaid

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Beat Time!

Reported bugs

10 issues
  • YouTube video import fails with 'error reading file'
  • App crashes when exporting audio files
  • Black screen appears when loading YouTube audio
  • Download button stops working without app restart
  • Infinite buffering with 'Preparing for Playback' message
Show 5 more
  • File open button stalls and doesn't respond
  • Audio doesn't reload on app reopening
  • Incompatibility with iOS updates (iOS 8, 10, 14)
  • Video format compatibility issues (.mov files)
  • Keyboard doesn't function properly

Requested features

10 requests
  • Reverse audio capability
  • AU3 plugin option
  • Dark mode interface
  • Better file organization and alphabetical sorting
  • Step forward/backward navigation buttons
Show 5 more
  • Save loop markers with files
  • Dropbox export integration
  • Improved bookmark management system
  • Percentage-based pitch control mode
  • Better keyboard functionality

AloneQuartet Prepaid

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Beat Time!

No in-app purchases

None

AloneQuartet Prepaid

No in-app purchases

Questions

Is Beat Time! free?
Beat Time! costs $6.99, with no in-app purchases.
Is AloneQuartet Prepaid free?
AloneQuartet Prepaid costs $2.99, with no in-app purchases.
Which has better reviews, Beat Time! or AloneQuartet Prepaid?
Beat Time! is rated higher. Beat Time! averages 3.4 out of 5 from 72 ratings, while AloneQuartet Prepaid averages 2.0 from 1 ratings.
Do Beat Time! or AloneQuartet Prepaid have ads?
Neither Beat Time! nor AloneQuartet Prepaid shows ads.
Which is updated more often, Beat Time! or AloneQuartet Prepaid?
Beat Time! ships an update every 3 weeks, and AloneQuartet Prepaid every 3 weeks. Most recently, Beat Time! was updated on October 18, 2026 and AloneQuartet Prepaid on October 17, 2026.

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