Comparison

Clef Trainer Grid vs SubmitScan

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

Head to head
About

Clef Trainer Grid

Master sheet music reading across multiple clefs. Practice note input via touch, MIDI keyboard, or microphone. Features a unique grid input to ensure genuine learning, not just muscle memory.

Highlights
  • Treble, alto, and bass clef support
  • Major and minor key signature support
  • Accidental support
  • Adjustable ledger lines
  • Grid input for muscle memory prevention
  • MIDI keyboard and microphone input
  • Cheat Mode for real-time note names
Features
Currently charting
Read full description

Learn to read sheet music over various clefs! Practice reading and inputting notes using your finger, plugging a piano keyboard in, or virtually any other instrument using the microphone input mode. Take your skills outside of the app: Clef Trainer Grid also features a special grid input that scrambles button locations to prevent the building of a muscle memory. This ensures that you're actually learning the note letters, rather than just learning how to use an app! Still want to learn the piano keys? No worries! You can also switch a classic piano input at any time. Features also include: * Support for treble, alto, and bass clefs * Support for every major and minor key signature * Support for accidentals—Choose if you want to play outside of the key! * Adjustable number of ledger lines * Cheat Mode—View the names of the notes in real-time! * Dark Mode * Ghost Note —View miss-input notes on the staff

About

SubmitScan

Easily convert paper assignments into organized PDF files for submission. Scan documents or import photos, edit pages, and combine them into a single PDF with consistent filenames. Designed for students to simplify the process of digitizing handwritten work.

Highlights
  • Scan multi-page assignments
  • Import pages from photo library
  • Review and remove pages
  • Combine pages into one PDF
  • Create organized filenames
  • Save and share PDFs
Features
Read full description

From paper to progress. SubmitScan makes it simple for students to turn paper assignments into organized PDF files that are ready to submit. Scan your assignment with your iPhone or import existing photos. Review your pages, remove anything you don't need, and combine everything into a single PDF. SubmitScan also helps create a consistent filename using your course, assignment, and name, making your files easier to identify before uploading them to Canvas or another learning platform. With SubmitScan, you can: • Scan multi-page assignments • Import pages from your photo library • Review pages before creating your PDF • Remove unwanted pages • Add additional scanned pages • Combine everything into one PDF • Create an organized assignment filename • Save your PDF to Files • Share your finished PDF Built with students in mind SubmitScan was designed to solve a simple problem: turning handwritten work into one clean, organized file should not be complicated. No account is required. Your documents are processed on your device, and SubmitScan does not require you to upload your assignments to a SubmitScan server. Scan. Combine. Submit.

Screenshots

Clef Trainer Grid4 screens
SubmitScan4 screens

Verdict

The call

The clearest difference is price: SubmitScan at Free against Clef Trainer Grid's $2.99. SubmitScan also leads on review sentiment (100% vs 83%). Clef Trainer Grid's advantage is update cadence (daily vs every 9 days) and chart position (#165 vs unranked). On rating, ads, in-app purchases 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

SubmitScan is free to download; Clef Trainer Grid costs $2.99 up front. 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 Clef Trainer Grid against 5.0 for SubmitScan. That said, the two scores are not equally well evidenced: Clef Trainer Grid has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 83% of Clef Trainer Grid's written reviews are positive against 100% of SubmitScan's.

UpkeepUpdate frequency

Clef Trainer Grid ships an update daily, SubmitScan every 9 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

Scorecard7 real differences · 4 level
Clef Trainer Grid versus SubmitScan: the parameters behind the verdict, then further details
ParameterClef Trainer GridSubmitScan
Price$2.99Free — better
Rating5.0 (12 ratings)5.0 (2 ratings)
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings12 — better2
Update frequencyDaily — betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#165 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size3 MB5 MB
Age rating4+4+
DeveloperJohn AndersenJESUS ALBERTO GARCIA

Customer experience

Clef Trainer Grid

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

SubmitScan

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Clef Trainer Grid

No in-app purchases

None

SubmitScan

No in-app purchases

Questions

Is Clef Trainer Grid free?
Clef Trainer Grid costs $2.99, with no in-app purchases.
Is SubmitScan free?
SubmitScan is free to download, with no in-app purchases.
Which has better reviews, Clef Trainer Grid or SubmitScan?
Clef Trainer Grid and SubmitScan are both rated 5.0 out of 5 on the App Store, from 12 and 2 ratings respectively.
Do Clef Trainer Grid or SubmitScan have ads?
Neither Clef Trainer Grid nor SubmitScan shows ads.
Which is updated more often, Clef Trainer Grid or SubmitScan?
Clef Trainer Grid ships an update daily, and SubmitScan every 9 days. Most recently, Clef Trainer Grid was updated on October 12, 2026 and SubmitScan on October 14, 2026.

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