Comparison

DrillStudioViewer vs Composer Pro

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

Head to head
About

DrillStudioViewer

View marching band drill storyboards created with Drill Studio. This viewer allows real-time checking of movement direction, stride length, and individual performer actions in 3D. Playback can be synchronized with sound sources and adjusted by tempo.

Highlights
  • 3D realistic reproduction
  • Playback sync with sound source
  • Adjustable tempo playback
  • Display trajectory and stride length
  • Tracking display with zoom
  • Swap storyboard top/bottom
Features
Read full description

This is a viewer application that can read dsm files created by App "Drill Studio" for creating drill storyboards for marching bands. This app has no editing features. By uploading the dsm file (DrillStudio file) created in advance by the storyboard creator to the server and entering the information into the app, you can download and load it into the app. You can check the movement direction from your own point, the stride length, etc. in real time, and you can check the movement of the individual. ・Realistic reproduction in 3D display ・Play back in sync with the sound source ・Specify the tempo and play ・Play at the tapped tempo ・Display trajectory, stride length, direction of travel, etc. ・Swap the top and bottom of the storyboard ・Tracking display even when enlarged Equipped with various functions that are useful for various exercises.

About

Composer Pro

Compose music scores with ease using a familiar keyboard layout. This app supports multiple parts, a wide range of instruments, and various musical symbols, making it suitable for both beginners and experienced musicians.

Highlights
  • Keyboard-style note input
  • Support for up to 8 parts
  • Over 100 instruments
  • Variety of music symbols
  • Configurable parts and settings
  • Instrument transposition
  • Export without watermark
Features
Read full description

A handy sheet music writer app, make writing sheet music feels like typing notes. Tap on the keys with notation in a familiar keyboard layout. Provide a very easy way to compose music score. Support up to 8 parts, over 100 instruments, variety of music symbols and notations. It is very friendly for rookies while professional enough for experts. --------------------------------- UNLIMITED ACCESS SUBSCRIPTION - Support up to 8 parts - Config parts(add, delete, reorder) - Change key for each part - Change beat type and tempo - Config clef for each staff - Config sound for each part - No watermark image export - No Ads - Support 2nd voice part - Transpose instruments - Change keyboard size - Import data file - Unlock all 100+ instruments - The subscriptions are $9.99 monthly and $49.99 yearly with free trial - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that service, where applicable - Terms of use: https://service.notationpad.com/terms_service.html

Screenshots

DrillStudioViewer4 screens
Composer Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: DrillStudioViewer at none against Composer Pro's 4. DrillStudioViewer also leads on iOS requirement (13.0 vs 15.0). Composer Pro's advantage is review sentiment (72% vs 43%) and update cadence (every 2 months vs every 5 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. Composer Pro sells 4 in-app purchases, starting at $6.99 per 7 days. DrillStudioViewer asks for nothing beyond the download.

UpkeepUpdate frequency

DrillStudioViewer ships an update every 5 months, Composer Pro every 2 months. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
DrillStudioViewer versus Composer Pro: the parameters behind the verdict, then further details
ParameterDrillStudioViewerComposer Pro
PriceFreeFree
Rating—4.5 (685 ratings) — better
Positive reviews42.9% of reviews71.5% of reviews — better
Number of ratings—685 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size173 MB161 MB
Age rating4+4+
DeveloperShinya Hattori嵩 张

Customer experience

DrillStudioViewer

Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

Composer Pro

All ratings685 ratings
Positive86.4%
Neutral5.5%
Negative8.0%
Written reviews260 reviews
Positive71.5%
Neutral7.7%
Negative20.8%

Bugs and requests

DrillStudioViewer

Not enough reviews yet to summarise bugs or requests.

Composer Pro

Reported bugs

3 issues
  • Notes sometimes placed incorrectly
  • Measures and compositions randomly deleted
  • Inability to restore deleted content

Requested features

5 requests
  • Add more instruments beyond piano
  • Allow changing time signatures and key signatures without subscription
  • Improve note editing and placement
  • Add export options to save/share compositions
  • Provide more music notation tools and dynamics

In-app purchases

None

DrillStudioViewer

No in-app purchases

4 purchases

Composer Pro

Subscriptions4
  • Unlimited Access$6.997 Days
  • Pro Access$9.991 Month
  • Pro Access$49.991 Year
Show 1 more
  • Pro Access7 Days trial$49.991 Year

Questions

Is DrillStudioViewer free?
DrillStudioViewer is free to download, with no in-app purchases.
Is Composer Pro free?
Composer Pro is free to download, with in-app purchases available.
Do DrillStudioViewer or Composer Pro have ads?
Neither DrillStudioViewer nor Composer Pro shows ads.
Which is updated more often, DrillStudioViewer or Composer Pro?
DrillStudioViewer ships an update every 5 months, and Composer Pro every 2 months. Most recently, DrillStudioViewer was updated on September 26, 2026 and Composer Pro on October 13, 2026.

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