Comparison

Session Notes AU vs Kaleidoscope Echo

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

Head to head
About

Session Notes AU

This app integrates note-taking directly into your music production workflow, allowing you to manage lyrics, mix ideas, and session details within your DAW. Version 2.0 enhances writing tools, navigation, and data safety with features like iCloud sync and backups.

Highlights
  • Integrated DAW workflow
  • Markdown-aware writing
  • Keyboard accessory tools
  • Automatic iCloud sync
  • Backup and restore functionality
  • AUv3 plugin and standalone app
  • Customizable themes and fonts
Read full description

Session Notes AU keeps your lyrics, mix notes, set lists, production reminders, and session notes inside the same DAW workflow where you track, edit, rehearse, and mix. Instead of bouncing out to a separate notes app, you can keep the writing and the work in the same place. Version 2.0 turns Session Notes AU into a more capable production companion with better writing tools, better note navigation, a flexible editor layout, and a safer day-to-day writing flow. Built For Real Session Work - Keep notes inside your DAW workflow instead of breaking focus - Switch quickly between the note browser and the active note - Resize the editor and note list with a drag handle - Use a more polished note browser with clearer active-note focus Brand New Writing Tools In 2.0 - Markdown-aware writing support - Keyboard accessory tools for lists, checklists, links, undo, redo, find, stats, and quick structure helpers - List, checklist, numbered-list, and blockquote continuation - Indent, outdent, and paired insertion helpers - In-note Find with live match highlighting - Live document stats while you write - Autosave for existing notes while you work Safer Session Flow In 2.0 - Automatic iCloud sync across devices - Manual sync when you want more control - Backup to Files App - Restore from backup if needed - Safer handling for note changes across devices Also Included - AUv3 plug-in workflow plus standalone app - Save, Save As New Note, share, delete, and reorder actions - Multiple themes for different studio environments - Separate font and size controls for browser text, title text, and note body text - Comprehensive built-in in-app manual Session Notes AU is designed for musicians, producers, engineers, and performers who want notes to feel like part of the session, not a second app sitting off to the side.

About

Kaleidoscope Echo

This app processes MIDI messages to create delayed and manipulated note sequences, simulating audio delay effects with added musical control. It allows for pitch and velocity manipulation of repeats, scale-based harmonization, and real-time harmony generation.

Highlights
  • MIDI note delay simulation
  • Pitch and velocity manipulation per repeat
  • Scale-based pitch harmonization
  • Real-time harmony generation
  • Customizable note sequences
  • Preset manager
Features
Read full description

Kaleidoscope is a MIDI processor designed specifically to simulate audio delay lines, but instead of processing audio data, it generates a series of delayed MIDI messages to achieve the same thing sonically, but with some added advantages. You can have Kaleidoscope emulate multi-tap delays and gating effects, as well as being able to manipulate the pitch and velocity of each repeat, something that is not normally done using a typical audio echo or delay effect. By default, all repeated notes are processed using the chromatic scale mode, but you are free to impose any key and scale to ensure any pitched notes are incremented or decremented in accordance with the chosen scale. Any MIDI notes that are presented to the Input MIDI port are processed by Kaleidoscope, and the modified output is then passed on to other instrument plugins. You can chain multiple instances of Kaleidoscope to create even more complex harmonies. For example, the first instance could turn one note into a simple 3-note chord, and the second instance could add octave offsets to create a lush, multi-octave outputs – all from a single note! It is also possible to perform simple, real-time harmonies using Kaleidoscope by setting the number of repeats to zero. In this mode, you can customize the pitch and velocity settings and add up to 17 additional harmonies. You can also switch to user definable mode to specify per step velocity and pitch settings to create complex sequences, complete with ties, note skip and loop mode. Features: ○ Ability to set a velocity increment or decrement per repeat. ○ Increment or decrement the pitch by a specified number of semitones per repeat. ○ Increment or decrement the pitch by a specified number of scale degrees per repeat. ○ Disable specific repeats to create syncopated rhythms or simulate a tapped delay. ○ You can turn disabled notes into ties. ○ Apply key and scale to the generated notes (126 scales supported in every key). ○ You can create your own custom scales. ○ User mode allows complete control over pitch and velocity per step. ○ Use Kaleidoscope to create instant real-time harmonies. ○ Create your own custom pitch and velocity sequences. ○ Preset Manager to create, load, save, and rename presets. ○ Drag and Drop backups and exports.

Screenshots

Session Notes AU4 screens
Kaleidoscope Echo4 screens

Verdict

The call

The clearest difference is price: Session Notes AU at $1.99 against Kaleidoscope Echo's $12.99. Session Notes AU also leads on review sentiment (64% vs 50%) and ratings volume (11 vs 2). Kaleidoscope Echo's advantage is rating (5.0 vs 4.2) and iOS requirement (13.0 vs 16.0). On update cadence, ads, in-app purchases and monetization model 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

Session Notes AU costs $1.99 and Kaleidoscope Echo $12.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Kaleidoscope Echo holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Session Notes AU has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 64% of Session Notes AU's written reviews are positive against 50% of Kaleidoscope Echo's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Session Notes AU versus Kaleidoscope Echo: the parameters behind the verdict, then further details
ParameterSession Notes AUKaleidoscope Echo
Price$1.99 — better$12.99
Rating4.2 (11 ratings)5.0 (2 ratings) — better
Positive reviews63.6% of reviews — better50.0% of reviews
Number of ratings11 — better2
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size8 MB21 MB
Age rating4+4+
DeveloperChristian Thompson4Pockets.com

Customer experience

Session Notes AU

All ratings11 ratings
Positive72.7%
Neutral27.3%
Negative0.0%
Written reviews11 reviews
Positive63.6%
Neutral27.3%
Negative9.1%

Kaleidoscope Echo

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Session Notes AU

No in-app purchases

None

Kaleidoscope Echo

No in-app purchases

Questions

Is Session Notes AU free?
Session Notes AU costs $1.99, with no in-app purchases.
Is Kaleidoscope Echo free?
Kaleidoscope Echo costs $12.99, with no in-app purchases.
Which has better reviews, Session Notes AU or Kaleidoscope Echo?
Kaleidoscope Echo is rated higher. Session Notes AU averages 4.2 out of 5 from 11 ratings, while Kaleidoscope Echo averages 5.0 from 2 ratings.
Do Session Notes AU or Kaleidoscope Echo have ads?
Neither Session Notes AU nor Kaleidoscope Echo shows ads.
Which is updated more often, Session Notes AU or Kaleidoscope Echo?
Session Notes AU ships an update every 3 months, and Kaleidoscope Echo every 3 months. Most recently, Session Notes AU was updated on November 1, 2026 and Kaleidoscope Echo on October 24, 2026.

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