Comparison

Gridplay vs Jazz Scales Trainer

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

Head to head
About

Gridplay

Create dynamic, multi-clip music videos with an innovative grid interface. Combine and divide cells, adjust individual clips, and add music to produce unique visual content for social media.

Highlights
  • Multi-clip grid interface
  • Combine and divide cells
  • Independent clip sound control
  • Timeline editing
  • Clip rotation and scaling
  • Save to camera roll
  • Share to social media
Features
Read full description

Make quality quick-cut style music videos straight from your phone with Gridplay. Giving even the most experienced filmmakers a new experience, the innovative grid screen allows users to combine and divide cells at will in order to create dynamic videos. Add a song, trim clips, and adjust and scale each cell for extra flair. Turn your inspirational moments into the movie of your life with Gridplay. Features: 1. Takes up to 16 4x4 videoclips (These can be recorded or uploaded.) 2. Swipe to combine or divide the cells 3. Create and edit a timeline with multiple frames 4. Optimized for low-resolution (640p) on Instagram 5. Records up to 15 seconds. (5 minutes with extension) 6. Self-timer 7. Each clip has an independent sound control 8. Ability to save video to camera roll 9. Frame thickness and color settings 10. Automatically saves rough draft 11. Rotate, adjust, scale, and mirror each clip 12. Share to Vine Instructions: 1. Pick a cell and choose the camera mode. (Full screen vs. split screen, and back camera vs. front camera) 2. Swipe to combine cells, and swipe again to divide. 3. Press the "Film" button. 4. Set the timer up to 15 seconds. (If you have unlocked the extension, you can set the timer up to 5 minutes.) 5. When you finish with one frame, it will go to the next automatically. You need to set the timer for each frame. 6. If you don't like what you have recorded, tap to delete. If you don't want to fill up the other cells? No problem, just go to the next step. 7. Adjust the volume and position of each clip. 8. Trim the clips and add background music. 9. Save and share on Vine, Instagram, Facebook, Youtube, Tumblr, and email.

About

Jazz Scales Trainer

Master jazz improvisation with play-along exercises focused on scales. Practice single scales and transitions, with customizable accompaniment beats and chords. Prepare for jam sessions by analyzing your favorite songs and selecting scale proposals for each chord.

Highlights
  • Play-along jazz scale exercises
  • Scale transition training
  • Customizable accompaniment beats and chords
  • Song analysis for scale selection
  • Instrument configuration (clef, pitch, range)
Features
Read full description

This app trains you on playing jazz solos with a variety of play-along exercises focused on jazz scales. Playing single scales as well as changing from scale to scale is trained. Various accompaniment beats and chords make practicing fun. Get ready for your next jam session by exercising your favorite songs. Listen and select from scale proposals for each bar of your song, after entering the song chords. Configure the app to adapt to your instrument (clef, pitch, range, etc.)

Screenshots

Gridplay4 screens
Jazz Scales Trainer4 screens

Verdict

The call

The clearest difference is review sentiment: Jazz Scales Trainer at 80% against Gridplay's 36%. Jazz Scales Trainer also leads on rating (3.0 vs 2.4) and in-app purchases (none vs 1). Gridplay's advantage is update cadence (monthly vs every 22 months) and ratings volume (77 vs 2). On ads, monetization model 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

Gridplay costs $1.99 and Jazz Scales Trainer $2.99 up front. Gridplay sells 1 one-off in-app purchase. Jazz Scales Trainer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Jazz Scales Trainer holds the better App Store score, 3.0 against 2.4. That said, the two scores are not equally well evidenced: Gridplay has 77 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of Gridplay's written reviews are positive against 80% of Jazz Scales Trainer's.

UpkeepUpdate frequency

Gridplay ships an update monthly, Jazz Scales Trainer every 22 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
Gridplay versus Jazz Scales Trainer: the parameters behind the verdict, then further details
ParameterGridplayJazz Scales Trainer
Price$1.99 — better$2.99
Rating2.4 (77 ratings)3.0 (2 ratings) — better
Positive reviews35.9% of reviews80.0% of reviews — better
Number of ratings77 — better2
Update frequencyMonthly — betterEvery 22 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.3 — better15.2
Further details — not scored
Size14 MB8 MB
Age rating4+4+
DeveloperPeta VisionMartin Miller

Customer experience

Gridplay

All ratings77 ratings
Positive31.2%
Neutral6.5%
Negative62.3%
Written reviews131 reviews
Positive35.9%
Neutral11.5%
Negative52.7%

Jazz Scales Trainer

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

1 purchases

Gridplay

One-time1
  • Expend video length to 5minute$0.99
None

Jazz Scales Trainer

No in-app purchases

Questions

Is Gridplay free?
Gridplay costs $1.99, and also offers in-app purchases.
Is Jazz Scales Trainer free?
Jazz Scales Trainer costs $2.99, with no in-app purchases.
Which has better reviews, Gridplay or Jazz Scales Trainer?
Jazz Scales Trainer is rated higher. Gridplay averages 2.4 out of 5 from 77 ratings, while Jazz Scales Trainer averages 3.0 from 2 ratings.
Do Gridplay or Jazz Scales Trainer have ads?
Neither Gridplay nor Jazz Scales Trainer shows ads.
Which is updated more often, Gridplay or Jazz Scales Trainer?
Gridplay ships an update monthly, and Jazz Scales Trainer every 22 months. Most recently, Gridplay was updated on October 26, 2026 and Jazz Scales Trainer on October 20, 2026.

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