Comparison

MIDIWeb Browser vs Otoo

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

Head to head
About

MIDIWeb Browser

This music app allows users to interact with WebMIDI websites, enabling them to learn, create, and play music. It serves as a companion for exploring MIDI functionalities online.

Highlights
  • WebMIDI website interaction
  • Music learning tools
  • Creative music tools
  • MIDI exploration
  • Companion app
Read full description

Your new MIDI App companion, built for WebMIDI websites. Learn, create and be inspired to play more with MIDI! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Otoo

This music creation app offers a unique free-form sequencer for building beats and melodies. It supports built-in sounds, sampling, and AUv3 instruments, with live performance effects and song arrangement tools.

Highlights
  • Free-form step sequencer
  • Single-screen workflow
  • Built-in sounds and sampler
  • AUv3 instrument support
  • Performance Mode effects
  • Export WAV, MP3, and MIDI
Features
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Otoo is a streamlined, one-screen groovebox designed for frictionless music production. Built around an innovative free-form step sequencer, Otoo breaks away from rigid grids, allowing you to place, drag, and stack notes freely across independent rows. Whether you are sketching out ideas using the native built-in engine and sampler or hosting your favorite third-party AUv3 plugins, Otoo delivers a distraction-free environment that prioritizes speed and musical flow. On iPhone, the interface dynamically scales to give your AUv3 instruments a near-fullscreen home, paired with a compact, highly responsive keyboard for immediate creation on the go. Otoo also includes Otoo MIDI, an AUv3 MIDI processor version of the app. It brings Otoo’s pattern-based sequencing into compatible AUv3 hosts, where playback follows the host timeline and instruments are routed as MIDI Out destinations instead of audio instruments. Distraction-Free Workflow • The single-screen layout keeps your sequence, arrangement and mixer visible at all times so you never have to dive into menus. • A free-form step sequencer lets you place, drag, and stack notes across any row without rigid instrument or track restrictions. • Step editing mode gives you precise control over note length, velocity, and timing subdivisions. • The gesture-driven mixer allows for quick volume adjustments, muting, and soloing directly from the main grid. • 4 rows on iPhone and 5 on iPad, with multiple instruments available in each row at different steps 
• 2-octave keyboard for playing and learning real notes Sounds and plug-ins 
• Up to 8 instruments per project
 • Built-in sounds and sampler
 • Use any installed AUv3 instruments in a large, near-fullscreen view with a compact keyboard 
• Up to 2 AUv3 effects per instrument
 • Sampler with instant key-by-key recording and chromatic mapping Patterns to full songs
 • Build songs from simple patterns
 • Draggable loop markers for quick arrangement changes Performance mode
 • Live sequencer and audio effects such as reverse, beat repeat, randomize, swing, triplet, tape, and more
 • Play the pattern like a keyboard by tapping steps directly Other features • Main output with built-in level protection • Automatic metronome when recording live into empty patterns • Export patterns or full songs as WAV or MP3 for easy sharing • Export performances as perfect loops • MIDI export • Supported time signatures: 4/4, 3/4, 4/4T and sequencer swing.

Screenshots

MIDIWeb Browser4 screens
Otoo4 screens

Verdict

The call

The clearest difference is price: MIDIWeb Browser at Free against Otoo's $6.99. Otoo's advantage is in-app purchases (none vs 3) and ratings volume (28 vs 5). On rating, review sentiment, update cadence and ads 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

MIDIWeb Browser is free to download; Otoo costs $6.99 up front. MIDIWeb Browser sells 3 in-app purchases, starting at $2.99 per month. Otoo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MIDIWeb Browser against 5.0 for Otoo. That said, the two scores are not equally well evidenced: Otoo has 28 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
MIDIWeb Browser versus Otoo: the parameters behind the verdict, then further details
ParameterMIDIWeb BrowserOtoo
PriceFree — better$6.99
Rating5.0 (5 ratings)5.0 (28 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings528 — better
Update frequencyEvery 6 daysEvery 6 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, Mac, Vision Pro — betteriPhone, iPad, iPod
Requires iOS17.615.6 — better
Further details — not scored
Size9 MB64 MB
Age rating17+4+
Developer5of12 LLPBeepStreet

Customer experience

MIDIWeb Browser

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Otoo

All ratings28 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

MIDIWeb Browser

Subscriptions1
  • MIDIWeb Supporter$2.991 Month
One-time2
  • Espresso$2.99
  • Double Espresso$4.99
None

Otoo

No in-app purchases

Questions

Is MIDIWeb Browser free?
MIDIWeb Browser is free to download, with in-app purchases available.
Is Otoo free?
Otoo costs $6.99, with no in-app purchases.
Which has better reviews, MIDIWeb Browser or Otoo?
MIDIWeb Browser and Otoo are both rated 5.0 out of 5 on the App Store, from 5 and 28 ratings respectively.
Do MIDIWeb Browser or Otoo have ads?
Neither MIDIWeb Browser nor Otoo shows ads.
Which is updated more often, MIDIWeb Browser or Otoo?
MIDIWeb Browser ships an update every 6 days, and Otoo every 6 days. Most recently, MIDIWeb Browser was updated on October 6, 2026 and Otoo on October 14, 2026.

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