Unexpected Music vs Doris by dgApps
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Unexpected Music
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Understand the fundaments of music, develop your musical ear, intuitively play and create melodies wherever you are, improve your singing or playing, tread new musical paths, invent and create... Unexpected Music is an extremely useful collection of tools for just about anyone interested in making music, from the complete beginner all the way to the seasoned musician. It includes: β’ An advanced, no-nonsense, and fully customisable ear and musical trainer, which doubles as a random music generator [pro]. β’ A live-audio analysis tool, which allows you to "see" the notes being played around you β it's like instantly having perfect pitch! Great to train your voice or to play a song by ear [pro]. β’ A complete scale explorer with countless categories. β’ A vast collection of chord progressions and a special interface to play them. β’ A musical sketchbook, to quickly record and develop musical ideas on-the-go. β’ A unique graphical display of the scales according to their similarities [pro]. β’ An advanced multi-instrument tuner, which can itself be tuned. β’ An intuitive transposition function, based on Shepard tones. β’ Superbly-sounding instruments. β’ Support for MIDI input and output [pro]. β’ And, last but not least, the good βol faithful but unforgiving metronome. These tools are all held together by Unexpected Music's heart β the wheel. This innovative and always accessible user interface: β’ Is an expressive instrument which can be played very easily. β’ Can be freely rotated β so you can intuitively play a melody regardless of the key and then transpose it effortlessly. β’ Lets you select or exclude notes with a swipe and thus quickly explore and discover scales. β’ Allows you to see and thus readily understand the relationships between chords. β’ And so much more... Let Unexpected Music inspire you to create the unexpected! Please note that some functions are included only with the pro version of Unexpected Music, which can be tested for free for seven days and with no obligation whatsoever.
Doris by dgApps
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Doris by dgApps is the app to send and receive MIDI commands from your iPhone or iPad via fully configurable touch buttons. Each Doris Project can have multiple Screens. Each Doris Screen can have multiple Buttons. Each Button can be one of nine different sizes, and each Button can be one of six different types: Note On Note Off A Button that sends Note On and Note Off MIDI commands, with the same channel and note for each command. These Buttons send a Note On command on touch and a Note Off command on the next touch, or they can be momentary, sending a Note On command on touch and a Note Off command on release. Control Change A Button that sends a Control Change MIDI command using a slider for a specific channel and specific control change number. Program Change A Button that sends a Program Change MIDI command on touch, with a configurable channel and program number. Multiple MIDI This Button type can have any number of on MIDI commands and any number of off MIDI commands. The on MIDI commands are sent on touch and the off MIDI commands are sent on a second touch, or on release if the Button is momentary. The MIDI commands can be sent all at once, or one after the other sequentially, both for the on MIDI commands and the off MIDI commands. Each MIDI command can be a Note On, Note Off, Program Change, or a Control Change command with a specified value. Flash All Buttons will flash when they receive their MIDI command, whether the command comes from another Button or from outside Doris. Flash Buttons go further in that they can be configured to flash for a specific MIDI command on a specific channel, or all MIDI commands on all channels, or any combination of commands and channels in between those two extremes. Blank Blank buttons are only visible in Edit mode. They are used to help with the layout of Buttons across the Screen. Each MIDI command is fully configurable visually: text, font, text size, text weight, text alignment, text colour, symbol, symbol colour, and background colour All configuration of Doris Projects, Screens, and Buttons is accomplished directly in the app. Thereβs no requirement for any other software. There is an always available MIDI screen that logs incoming MIDI commands and can send specific MIDI commands. The screen also enables MIDI using Bluetooth connections. Copious Help is available throughout Doris to explain things as you go. Doris can share DORIS files using all the usual share options, and import saved DORIS files into new Projects. Doris was successfully used with Blur at Coachella 2024, with The Script during 2024, and with Little Simz at Glastonbury 2024.
Screenshots
Verdict
The clearest difference is update cadence: Unexpected Music at every 5 days against Doris by dgApps's every 3 weeks. Unexpected Music also leads on iOS requirement (15.0 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Unexpected Music sells 2 one-off in-app purchases and Doris by dgApps sells 2 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.
Unexpected Music ships an update every 5 days, Doris by dgApps every 3 weeks. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.
| Parameter | Unexpected Music | Doris by dgApps |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days β better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.0 β better | 17.5 |
| Further details β not scored | ||
| Size | 139 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Atilio Menendez | dgApps |
In-app purchases
Unexpected Music
- 7-Day trial of the pro versionFree
- Upgrade to the pro version$4.99
Doris by dgApps
- Doris Monthly Subscription$8.991 Month
- Doris Annual Subscription$89.991 Year





