Comparison

99 Bottles! vs AUMI

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

Head to head
About

99 Bottles!

This app sings the "99 Bottles of Beer on the Wall" song with a computer-generated voice. Users can tap bottles to remove them as the song progresses, or use autoplay. The starting number of bottles can be adjusted.

Highlights
  • Sings "99 Bottles of Beer on the Wall"
  • Artificial computer-generated voice
  • Interactive bottle tapping
  • Autoplay mode
  • Adjustable starting bottle count
Features
Read full description

Annoy your friends! Enrage your enemies! Bore yourself to tears! This application does just one utterly pointless thing: it sings the entire song "99 Bottles of Beer on the Wall" (starting with 99 bottles and ending when no bottles remain) in an artificial-sounding computer-generated voice. On the screen, 99 bottles are displayed. As the song reaches the phrase "take one down", you tap a bottle (or, in autoplay mode, a bottle is randomly chosen) and it is taken down and removed from the screen. The count of remaining bottles is also shown. So you can be bored watching the screen as well as listening to the song. If 99 bottles is just too many — perhaps you're in a hurry? — you can start with fewer bottles in various amounts down to 1. Please, for your own safety, if you must sing along, sing responsibly.

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.

Screenshots

99 Bottles!1 screens
AUMI4 screens

Verdict

The call

99 Bottles! and AUMI both sit at 5.0 stars, but that hides the real split: 96% of 99 Bottles!'s written reviews are positive against 50% of AUMI's. 99 Bottles! also leads on ratings volume (136 vs 4). AUMI's advantage is update cadence (every 6 months vs every 15 months) and device support (3 vs 1). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for 99 Bottles! against 5.0 for AUMI. That said, the two scores are not equally well evidenced: 99 Bottles! has 136 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 96% of 99 Bottles!'s written reviews are positive against 50% of AUMI's.

UpkeepUpdate frequency

99 Bottles! ships an update every 15 months, AUMI every 6 months. The most recent releases landed on October 23, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 5 level
99 Bottles! versus AUMI: the parameters behind the verdict, then further details
Parameter99 Bottles!AUMI
PriceFreeFree
Rating5.0 (136 ratings)5.0 (4 ratings) — better
Positive reviews95.9% of reviews — better50.0% of reviews
Number of ratings136 — better4
Update frequencyEvery 15 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.012.4 — better
Further details — not scored
Size10 MB69 MB
Age rating4+4+
DeveloperMatt NeuburgRensselaer Polytechnic Institute

Customer experience

99 Bottles!

All ratings137 ratings
Positive99.3%
Neutral0.0%
Negative0.7%
Written reviews123 reviews
Positive95.9%
Neutral1.6%
Negative2.4%

AUMI

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

99 Bottles!

Reported bugs

1 issue
  • No reported technical bugs or crashes

Requested features

5 requests
  • Background play capability with locked phone
  • Slower/half-tempo version option
  • Start over plus option (counting down to negative 99)
  • Ability to contact developer for support
  • Customizable bottle count starting point

AUMI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

99 Bottles!

No in-app purchases

None

AUMI

No in-app purchases

Questions

Is 99 Bottles! free?
99 Bottles! is free to download, with no in-app purchases.
Is AUMI free?
AUMI is free to download, with no in-app purchases.
Which has better reviews, 99 Bottles! or AUMI?
AUMI is rated higher. 99 Bottles! averages 5.0 out of 5 from 136 ratings, while AUMI averages 5.0 from 4 ratings.
Do 99 Bottles! or AUMI have ads?
Neither 99 Bottles! nor AUMI shows ads.
Which is updated more often, 99 Bottles! or AUMI?
99 Bottles! ships an update every 15 months, and AUMI every 6 months. Most recently, 99 Bottles! was updated on October 23, 2026 and AUMI on October 11, 2026.

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