Comparison

Jazz Time Trainer vs ARC Score

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

Head to head
About

Jazz Time Trainer

Features
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Jazz Time Trainer is a focused metronome and inner-pulse trainer built for jazz musicians, drummers, students, and serious practice sessions. This is not a generic click app. JTT is designed around the way musicians actually train time: internal pulse, click independence, 2 & 4 practice, gap-click work, odd meters, grouping, swing ride practice, subdivisions, and clean visual feedback. Key features: - 20-400 BPM tempo range - Stable high-output click engine - All Beats, 2 & 4, 1 Only, 4 Only - Gap Click and Random Drop timing challenges - Common time signatures for jazz practice - Odd meter and grouping concepts for modern jazz training - Subdivision practice for 8ths, 16ths, and triplet feels - Customizable beat accents and mute states - Multiple click sound profiles, including voice count mode - Swing Ride practice with Center, Ahead, and Layback feel options - Memory slots for saving practice setups - Minimal dark interface designed for practice, not distraction - Media mix mode for practicing while playing along with other audio JTT is made for musicians who care about time feel, not just BPM. No ads.

About

ARC Score

Features
Read full description

ARC Score is a sheet music app for editing printed notation, adding annotations, and reading scores while you play. Edit with Apple Pencil on iPad or your finger on iPhone. On iPhone, use one finger to write, erase, and select, and two fingers to pan and zoom. Import PDF or image scores, or create a score from blank staff paper. Turn on printed-content editing to erase or move printed markings while preserving staff lines. Annotate with the pen and highlighter, and save your favorite colors and widths as quick tools. Write notes and rests on the staff of a new or imported score with Music Pen. Recognized handwriting becomes printed notation based on where you wrote it. Add dots or flags to revise it, or use Undo to return to the original handwriting. This does not automatically transcribe an entire existing score. Recognition results depend on handwriting and score quality. Key features β€’ Import PDF and image scores β€’ Staff-paper templates with or without a title area β€’ Save personal PDFs as templates: repeat one selected page or use the complete PDF β€’ Edit printed content while preserving staff lines β€’ Convert handwritten notes and rests with Music Pen β€’ Ordinary pen, highlighter, eraser, freeform and rectangular selection β€’ Undo and Redo β€’ Folders and setlists β€’ Add, duplicate, reorder, and delete pages β€’ Portrait, landscape, and two-page reading β€’ Automatic saving and work recovery Hide the tools in reading mode while keeping system information such as the time and battery visible. Tap or swipe to turn pages, and use performance lock to reduce unintended actions. ARC Score supports Korean, English, and Japanese. Open App Language in settings to change the language in system settings. Printed-content editing and staff detection work best with clear PDFs and images. Results may vary with low-resolution scans and photographs. Access plans Keep up to five library scores for free, with viewing, ordinary annotations, basic management, saving, and export. A multi-page score counts as one library item. Tutorial scores do not count toward the free limit. No ARC Score account or login is required. Monthly and lifetime access provide the same current benefits: printed-content editing, Music Pen, and unlimited library scores. Prices vary by country or region. Check the price and terms shown in the app and Apple's purchase confirmation before buying. Monthly access is an auto-renewable subscription. Eligible subscribers receive a 14-day free trial, followed by the monthly charge unless cancelled. To avoid renewal, cancel in your Apple Account subscription settings at least 24 hours before the next billing date. Lifetime access is a one-time purchase with no automatic renewal. Buying lifetime access does not automatically cancel an existing monthly subscription. After a trial or subscription ends, existing scores and edits remain available for viewing, ordinary annotations, saving, and export. Scores above the free limit are retained. In free access, you can add a new score only when fewer than five library scores are stored. New printed-content editing and Music Pen use require active access. Use Restore Purchases to verify an existing purchase. Privacy Policy: https://arc-score-support.jzrtcmkrj4.chatgpt.site/privacy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Jazz Time Trainer4 screens
ARC Score3 screens

Verdict

The call

The clearest difference is in-app purchases: Jazz Time Trainer at none against ARC Score's 2. Jazz Time Trainer also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads 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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. ARC Score sells 2 in-app purchases, starting at $1.99 per month. Jazz Time Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Jazz Time Trainer ships an update every 4 days, ARC Score every 2 days. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
Jazz Time Trainer versus ARC Score: the parameters behind the verdict, then further details
ParameterJazz Time TrainerARC Score
PriceFreeFree
Update frequencyEvery 4 daysEvery 2 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS13.0 β€” better18.0
Further details β€” not scored
Size19 MB15 MB
Age rating4+4+
DeveloperSangwoo Shinsang hoon lee

In-app purchases

None

Jazz Time Trainer

No in-app purchases

2 purchases

ARC Score

Subscriptions1
  • ARC Score Monthly14 Days trial$1.991 Month
One-time1
  • ARC Score Lifetime Access$17.99

Questions

Is Jazz Time Trainer free?
Jazz Time Trainer is free to download, with no in-app purchases.
Is ARC Score free?
ARC Score is free to download, with in-app purchases available.
Do Jazz Time Trainer or ARC Score have ads?
Neither Jazz Time Trainer nor ARC Score shows ads.
Which is updated more often, Jazz Time Trainer or ARC Score?
Jazz Time Trainer ships an update every 4 days, and ARC Score every 2 days. Most recently, Jazz Time Trainer was updated on October 8, 2026 and ARC Score on October 25, 2026.

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