ChordMapMidi vs Additive Drum Machine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChordMapMidi
This app is a MIDI controller for exploring musical chords and progressions in major and minor keys. It sends note information to other synthesizer apps on your device, making it a portable tool for musicians and educators.
- Explore chords and progressions
- Major and minor keys
- MIDI controller functionality
- Sends note information to synth apps
- Portable music tool
Read full descriptionHide full description
ChordMapMidi allows you to explore chords and chord progressions in both major and minor keys, one finger tap at a time. Note: ChordMapMidi is a MIDI controller. It doesn't create sound on its own. It sends note information to synthesizer apps you have on your device. ChordMapMidi is useful for songwriters, MIDI musicians, music educators... especially in places where the only instrument you have is the phone in your pocket. Have fun exploring chords and progressions!
Additive Drum Machine
Create unique drum beats with additive rhythm and traditional drum machine functionality. Design sequences of any length and structure, easily switching steps on and off to craft complex patterns. Ideal for practicing odd meters and exploring diverse rhythmic structures.
- Additive rhythm concept
- Traditional drum machine interface
- Customizable sequence length
- Step sequencing
- Odd meter support
- Symmetrical and asymmetrical rhythms
Read full descriptionHide full description
With Additive Drum Machine you can create drum beats using the concept of “additive rhythm” in combination with the sounds and ease of use of a traditional drum machine. Construct step sequences of any length and structure by the chaining of "long" and "short" beats. Then switch on and off individual steps to create a drum pattern. Whether used as a practice tool or composition sketchpad, its intuitive interface allows you to easily make drum patterns that use odd meters, symmetrical and asymmetrical rhythmic structures, and various subdivisions of the pulse. With Additive Drum Machine your musical imagination is the limit.
Screenshots
Verdict
ChordMapMidi and Additive Drum Machine both sit at 5.0 stars, but that hides the real split: 100% of Additive Drum Machine's written reviews are positive against 53% of ChordMapMidi's. Additive Drum Machine also leads on device support (3 vs 1) and price ($2.99 vs $3.99). On rating, ratings volume, 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
ChordMapMidi costs $3.99 and Additive Drum Machine $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for ChordMapMidi against 5.0 for Additive Drum Machine. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews are what separate them: 53% of ChordMapMidi's written reviews are positive against 100% of Additive Drum Machine's.
ChordMapMidi ships an update every 8 months, Additive Drum Machine every 15 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.
| Parameter | ChordMapMidi | Additive Drum Machine |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 5.0 (5 ratings) | 5.0 (3 ratings) |
| Positive reviews | 52.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 8 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 14.5 — better |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Malcolm Mugglin | Giovanny Bermudez |
Customer experience
ChordMapMidi
Additive Drum Machine
In-app purchases
ChordMapMidi
No in-app purchases
Additive Drum Machine
No in-app purchases
Questions
Is ChordMapMidi free?
Is Additive Drum Machine free?
Which has better reviews, ChordMapMidi or Additive Drum Machine?
Do ChordMapMidi or Additive Drum Machine have ads?
Which is updated more often, ChordMapMidi or Additive Drum Machine?
Other comparisons
