Comparison

iImprov vs pttrN for drummers

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

Head to head
About

iImprov

This app helps jazz musicians of all levels master modal improvisation. It offers detailed explanations of theory, scale relationships, and practical exercises with audio and JAM-A-longs in various keys and styles. Tailored for modal tunes, it covers minor modal, 7 sus 4, and Major 7#4 progressions.

Highlights
  • Modal improvisation theory
  • Scale and chord relation explanations
  • Pentatonic scale usage
  • Audio and visual scale examples
  • Interactive JAM-A-longs
  • Adjustable tempo and instrument balance
  • Transposition selection
Features
Read full description

iImprov-Modal is the 2nd release from Jazz Apps Mobile LLC. It is part of a series created for jazz musicians of all levels to help them take on specific challenges that any improvising musician will encounter. Each one contains a full explanation of all the concepts and theory involved as well as written and audio examples and exercises. Each app contains JAM-A-longs in all keys with adjustable tempo and control of instrument balance. Each iImprov app also allows you to select the correct transposition for your instrument. iImprov-Modal specifically provides the tools for confidently playing over modal tunes. The main focus of the app is playing over minor modal tunes, however we have also covered playing over 7 sus 4 modal tunes and Major 7#4 tunes. Exercises and JAM-A-longs specific to each of these types of tunes are included. Features- Full explanation of the concepts involved. Detailed theory of note to chord relations and use of modal scales. Detailed theory of how to use pentatonic scales, including how to play “outside.” Audio and visual representation of the related scales. Audio playback of the scales played over the appropriate chords. Exercises that include live audio examples from saxophonist Tony Bray. JAM-A-longs for Minor Modal (Swing and Funk). JAM-A-longs for 7 sus 4. JAM-A-longs for Major 7#4. Each JAM-A-long was recorded individually in order to give variation for each key. Mixer control for the JAM-A-Long instruments. Tempo control for each JAM-A-long. Unlimited JAM-A-long loop length.

About

pttrN for drummers

This app generates and plays an infinite variety of one-bar drum grooves in various time signatures. Customize snare placement, note density, and add a virtual bass player for a complete rhythmic experience.

Highlights
  • Random pattern generation
  • Multiple time signatures (4/4, 3/4, 5/4, 12/8, 7/8)
  • Customizable snare placement
  • Adjustable note density
  • Virtual bass player
  • Auto-change for continuous grooves
Features
Read full description

« pttrN for drummers » is a random pattern generator. It creates and plays an infinite number of one bar grooves in 4/4, 3/4, 5/4, 12/8 and 7/8. Choose your Hi-Hat figure, pttrN takes care of everything else ! Settings : - You can add a snare drum on 2 and 4, or 3. In « FREE » mode, the snare placement is random. - You can choose the maximum number of notes in a row (2 by default). - Choose the level : « EASY » mode generates 8th note grooves. MEDIUM, NORMAL and HARD modes generate 16th note grooves with different note density in one bar. (« NORMAL » means that the probability for a snare, a kick or a silence is equal). PttrN plays the patterns, and for even more FUN, you can have a virtual bass player ! Set your own mix between the metronome, the drums sound and the bass. Don’t stop drumming : Use the AUTO-CHANGE and set the number of bars before pttrN generates a new groove ! Let’s groove !!

Screenshots

iImprov4 screens
pttrN for drummers4 screens

Verdict

The call

The clearest difference is rating: pttrN for drummers at 5.0 against iImprov's 3.0. pttrN for drummers also leads on update cadence (every 7 months vs every 28 months) and review sentiment (83% vs 68%). iImprov's advantage is price ($3.99 vs $4.99). On ratings volume, 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

iImprov costs $3.99 and pttrN for drummers $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

pttrN for drummers holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 68% of iImprov's written reviews are positive against 83% of pttrN for drummers's.

UpkeepUpdate frequency

iImprov ships an update every 28 months, pttrN for drummers every 7 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
iImprov versus pttrN for drummers: the parameters behind the verdict, then further details
ParameteriImprovpttrN for drummers
Price$3.99 — better$4.99
Rating3.0 (2 ratings)5.0 (1 ratings) — better
Positive reviews68.2% of reviews83.3% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 28 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.612 — better
Further details — not scored
Size8 MB27 MB
Age rating4+4+
DeveloperJazz Apps Mobile LLCDidier Ottaviani

Customer experience

iImprov

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews22 reviews
Positive68.2%
Neutral4.5%
Negative27.3%

pttrN for drummers

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

In-app purchases

None

iImprov

No in-app purchases

None

pttrN for drummers

No in-app purchases

Questions

Is iImprov free?
iImprov costs $3.99, with no in-app purchases.
Is pttrN for drummers free?
pttrN for drummers costs $4.99, with no in-app purchases.
Which has better reviews, iImprov or pttrN for drummers?
pttrN for drummers is rated higher. iImprov averages 3.0 out of 5 from 2 ratings, while pttrN for drummers averages 5.0 from 1 ratings.
Do iImprov or pttrN for drummers have ads?
Neither iImprov nor pttrN for drummers shows ads.
Which is updated more often, iImprov or pttrN for drummers?
iImprov ships an update every 28 months, and pttrN for drummers every 7 months. Most recently, iImprov was updated on November 6, 2026 and pttrN for drummers on November 2, 2026.

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