Comparison

AUMI vs PDF Songbook

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

Head to head
About

AUMI

This app allows individuals with limited mobility to create music through movement and gestures. It focuses on improvisation and self-expression, making music accessible to a wider range of people, including those with profound physical disabilities.

Highlights
  • Music creation through movement and gestures
  • Focus on improvisation and self-expression
  • Accessible for individuals with profound physical disabilities
  • Uses device cameras for input
  • Configurable sound sensitivity
  • MIDI controller functionality
  • Import audio from other apps
Features
Read full description

Adaptive Use Musical Instruments (AUMI) software interface enables people who have very limited controlled (voluntary) movement to independently engage in music making. The Adaptive Use Musical Instruments software interface enables the user to play sounds and musical phrases through movement and gestures. This is an entry to improvisation rather than “hitting the right notes” or playing set pieces of music. Instead, the software uses music as a way for participants to express a range of affects, both by themselves and in response to, or in conversation with, others. While the AUMI interface can be used by anyone, the focus has been on working with people who have profound physical disabilities. In taking these participants as its starting point, the project attempts to make musical improvisation and collaboration accessible to the widest possible range of individuals. This approach also opens up the possibility of learning more about the relations between ability, the body, creativity and improvisation, from within a cultural context that does not always acknowledge or accept people with disabilities. This iOS version of AUMI runs on devices with cameras, and can run on iPhones, iPod touches, and iPads. A large assortment of sounds can be triggered with configurable amounts of sensitivity. AUMI also can be used as a MIDI controller to access other iOS based synthesizers or external equipment (using the iPad's Camera Connection kit or via Core MIDI over WiFi.) AUMI can also import audio from other iOS or desktop apps to be used as melodic or percussive instruments. AUMI can capture a record of the movement in the session, which can be exported and turned into reports in a clinical setting.

About

PDF Songbook

Features
Read full description

Your music. Always ready. PDF Songbook is a modern stage-work hub for musicians, vocalists, bands, and teachers. It organizes your repertoire and supports your workflow from preparing materials to performing the final song on stage. PDF LIBRARIES Create separate libraries for bands, projects, lessons, and different types of performances. Use search, the A–Z index, favorites, and metadata to quickly find the material you need. SETLISTS AND STAGE MODE Arrange your songs in the right order and start a performance directly from a prepared setlist. Stage Mode provides clear access to your materials, navigation controls, performance time, metronome, and autoscroll. TELEPROMPTER Create and edit your own lyrics and text. Adjust the font size and automatic scrolling speed to reduce the need to touch the screen during a performance. ANNOTATIONS AND NOTES Add handwritten markings and text notes directly to your materials. Mark entrances, repeats, dynamics, and any other information you may need during a rehearsal or performance. HANDS-FREE CONTROL Control selected functions using compatible Bluetooth foot pedals and MIDI messages. DEVICE SYNC Connect devices over a local network. A Master device can share a setlist and the required PDF files with Follower devices — no internet connection required. IMPORT, EXPORT, AND BACKUPS Transfer metadata and protect the contents of your libraries using backup files. FREE VERSION Start with your own library, up to 10 PDF documents, and your first setlist. PDF SONGBOOK PRO A one-time purchase unlocks: • unlimited PDF documents, libraries, and setlists, • teleprompter, • device synchronization, • annotations and notes, • backups. No subscription. PDF Songbook was created by a musician for real rehearsals, live performances, and everyday repertoire work. Prepare. Organize. Perform.

Screenshots

AUMI4 screens
PDF Songbook4 screens

Verdict

The call

The clearest difference is in-app purchases: AUMI at none against PDF Songbook's 1. AUMI also leads on iOS requirement (12.4 vs 16.0). PDF Songbook's advantage is update cadence (monthly vs every 6 months). On price, 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

Both are free to download. PDF Songbook sells 1 one-off in-app purchase. AUMI asks for nothing beyond the download.

UpkeepUpdate frequency

AUMI ships an update every 6 months, PDF Songbook monthly. The most recent releases landed on October 11, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
AUMI versus PDF Songbook: the parameters behind the verdict, then further details
ParameterAUMIPDF Songbook
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 6 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.4 — better16.0
Further details — not scored
Size69 MB11 MB
Age rating4+4+
DeveloperRensselaer Polytechnic InstituteJAKUB MACIEJ FURMAN

In-app purchases

None

AUMI

No in-app purchases

1 purchases

PDF Songbook

One-time1
  • PDF Songbook Pro$12.99

Questions

Is AUMI free?
AUMI is free to download, with no in-app purchases.
Is PDF Songbook free?
PDF Songbook is free to download, with in-app purchases available.
Do AUMI or PDF Songbook have ads?
Neither AUMI nor PDF Songbook shows ads.
Which is updated more often, AUMI or PDF Songbook?
AUMI ships an update every 6 months, and PDF Songbook monthly. Most recently, AUMI was updated on October 11, 2026 and PDF Songbook on October 25, 2026.

Other comparisons