Comparison

RapMushi vs Boimero

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

Head to head
About

RapMushi

Become a virtual rapper by rhythmically tapping word panels. Explore DJ Mode with different rhythms, volume control, and record scratching. Add instrumental accompaniments like piano and guitar to create your own tracks.

Highlights
  • Rhythmic word panel tapping
  • DJ Mode with A/B rhythms
  • Volume control fader
  • Record scratching
  • Instrumental accompaniments (piano, guitar)
  • Track creation
Features
Read full description

Rap-mushi is an application that you can feel like a ”Rapper", by pushing the words panel rhythmically. Words are separated in 7 parts. When you press the "Number" panel, it will shift to those several sections. In "DJ MODE", you can choose different rhythms named A and B. You can control the volume by the fader below. Also, you can scratch the Record to have much fun. Not only that. You can add piano, guitar, etc. as an accompany. We wish you to make a lots of wsome tracks!! Tsubasa Naruse

About

Boimero

Create original songs without singing by arranging notes and lyrics on a piano roll. This app generates AI singing voices using advanced models, allowing for offline music production on your mobile device. It supports various file formats and voicebanks for flexible music creation.

Highlights
  • Intuitive piano roll for melody creation
  • Lyric input for individual notes
  • Multi-track song building
  • Import UTAU, VOICEVOX, MIDI, UST, and MusicXML
  • AI singing voice generation with DiffSinger
  • Offline voice generation
  • Export and share finished audio
Features
Read full description

Boimero is a vocal synthesis and music creation app that lets you make original songs without recording your own voice. Simply arrange notes on the piano roll and enter lyrics to generate a singing voice. Whether you are new to songwriting or an experienced creator, Boimero makes it easy to produce music on your iPhone or iPad. Voice generation runs on your device, so you can compose songs and generate vocals offline. KEY FEATURES • Create melodies with an intuitive piano roll • Enter lyrics for individual notes • Build songs with multiple tracks • Import UTAU voicebanks • Generate AI singing voices with DiffSinger models • Use compatible VOICEVOX models • Import MIDI, UST, and MusicXML files • Adjust tempo, volume, and other song settings • Export and share your finished audio BOIMERO IS GREAT FOR • Creating songs without recording your own voice • Making vocal-synth and character-voice music on mobile • Working with UTAU and DiffSinger voice models • Editing MIDI and UST files away from your computer • Learning vocal synthesis and songwriting Turn your notes and lyrics into a singing voice. Create music freely with Boimero. Features and available voices may vary depending on your device, plan, and installed models. Terms of Use: https://www.apple.com/legal/internet-services/itunes/us/terms.html

Screenshots

RapMushi3 screens
Boimero2 screens

Verdict

The call

The clearest difference is in-app purchases: RapMushi at none against Boimero's 4. RapMushi also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.1). Boimero's advantage is update cadence (daily vs every 66 months) and ratings volume (579 vs 25). On price, rating, review sentiment 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

Both are free to download. Boimero sells 4 in-app purchases, starting at $0.99 per month. RapMushi asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for RapMushi against 4.6 for Boimero. That said, the two scores are not equally well evidenced: Boimero has 579 ratings behind it against 25, so its average is the more settled of the two. Written reviews are what separate them: 95% of RapMushi's written reviews are positive against 88% of Boimero's.

UpkeepUpdate frequency

RapMushi ships an update every 66 months, Boimero daily. Both last shipped on October 30, 2026.

Scorecard6 real differences · 4 level
RapMushi versus Boimero: the parameters behind the verdict, then further details
ParameterRapMushiBoimero
PriceFreeFree
Rating4.6 (25 ratings)4.6 (579 ratings) — better
Positive reviews94.9% of reviews — better88.4% of reviews
Number of ratings25579 — better
Update frequencyEvery 66 monthsDaily — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size75 MB396 MB
Age rating4+4+
DeveloperTsubasa NaruseWaffle, LCC

Customer experience

RapMushi

All ratings25 ratings
Positive88.0%
Neutral8.0%
Negative4.0%
Written reviews118 reviews
Positive94.9%
Neutral1.7%
Negative3.4%

Boimero

All ratings579 ratings
Positive91.5%
Neutral4.7%
Negative3.8%
Written reviews707 reviews
Positive88.4%
Neutral8.2%
Negative3.4%

User reviews

RapMushi

From 25 App Store ratings

What we love

  • 🎶 Fun and addictive music creation
  • 🎨 Cute and charming illustrations
  • 👍 Intuitive and easy to use
  • 💰 Free to download and use
  • 🎧 Great beats and sound quality

Room to improve

  • ❓ Language barrier (Japanese)
  • ⚠️ Outdated, not working on newer iOS versions

Boimero

From 579 App Store ratings

What we love

  • 👍 Easy to use
  • 🎨 Helpful for creating music
  • 💡 Good mobile vocaloid alternative
  • 🎶 Enjoyable for composing songs

Room to improve

  • 🐛 Buggy and glitchy at times
  • 💰 Too many ads and paid features
  • 🌐 Lack of English support

Bugs and requests

RapMushi

Reported bugs

1 issue
  • Does not work with iOS 11

Requested features

5 requests
  • English version
  • Update for newer iOS versions
  • Ability to record mixes as ringtones
  • Tempo adjustment feature
  • Ability to load own loops and samples

Boimero

Reported bugs

3 issues
  • Lyrics not working as expected
  • Audio playback issues after watching ads
  • Tutorial/help content not loading

Requested features

4 requests
  • More voicebank options
  • Improved pitch/tuning controls
  • Better lyric integration
  • English language support

In-app purchases

None

RapMushi

No in-app purchases

4 purchases

Boimero

Subscriptions3
  • ボイメロプレミアム$0.991 Month
  • ボイメロプレミアム$1.991 Month
  • ボイメロプレミアム$5.991 Year
One-time1
  • ボイメロプレミアム$9.99

Questions

Is RapMushi free?
RapMushi is free to download, with no in-app purchases.
Is Boimero free?
Boimero is free to download, with in-app purchases available.
Which has better reviews, RapMushi or Boimero?
Boimero is rated higher. RapMushi averages 4.6 out of 5 from 25 ratings, while Boimero averages 4.6 from 579 ratings.
Do RapMushi or Boimero have ads?
Boimero shows ads; RapMushi does not.
Which is updated more often, RapMushi or Boimero?
RapMushi ships an update every 66 months, and Boimero daily. Most recently, RapMushi was updated on October 30, 2026 and Boimero on October 30, 2026.

Other comparisons