Comparison

Groove Stew vs 421Grid

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

Head to head
About

Groove Stew

Practice and learn drum grooves with a fun and exciting tool. Generate thousands of unique variations or create your own, and test your reading skills. Customize notes within grooves to suit your practice needs.

Highlights
  • Randomized syncopated drum groove practice
  • Thousands of groove variations
  • Customizable groove creation
  • Adjustable difficulty levels
  • Variety of groove 'feels' (note values)
  • Reading skill testing
Features
Read full description

GROOVE STEW - A fun and exiting new way to practice and learn drum grooves! Work on your TIME! PRACTICE randomized syncopated drum grooves! DEVELOP new ideas! TEST your reading skills! With GROOVE STEW, the sky's the limit!! Choose from a variety of groove 'feels' (Quarter note, Eighth note, or Sixteenth note grooves), select your difficulty, hit 'STIR IT UP', and get practicing! There are literally THOUSANDS of groove variations that can be generated for your practice routine. Or, create your own! Don't like a specific note or notes in the groove? Change them! GROOVE STEW is designed to work for YOU! Download now and GET PRACTICING!

About

421Grid

Features
Read full description

Turn Practice into Progress. Inspiration into Execution. Whether you’re a drumline veteran, music educator, or aspiring percussionist, this app is your personal drumming lab—designed to help you experiment, customize, and level up your chops with precision. Built for Rudimental Drummers Who Want More Forget flipping through old notebooks or searching YouTube for exercises you can’t customize. With this app, you can build your own practice grids, apply the legendary 4-2-1 structure, and modify exercises using accents, subdivisions (triplets, fivelets, sixteenths), or even alternate stickings—all with just a few taps. Customize Everything Shift the beat. Change the direction. Reverse your sticking. Or layer complexity to push your brain and hands to the limit. Every exercise becomes your own. Designed for Students and Educators Music teachers: Quickly generate custom warmups or technique builders for your drumline. Students: Practice smarter, not just harder—with structured routines and unlimited variations. Why Drummers Are Calling This a Game-Changer: • Reinforces fundamentals through creative repetition • Encourages daily practice through customization and challenge • Perfect for drumline auditions, solo prep, or just sharpening your hands • No internet? No problem. Train anywhere you take your sticks. Ready to Break Through Your Plateaus? This isn’t just another drumming app. It’s your creative practice engine, your daily workout, and your edge over the competition. Download now and redefine your rudimental journey.

Screenshots

Groove Stew4 screens
421Grid4 screens

Verdict

The call

The clearest difference is update cadence: 421Grid at every 3 months against Groove Stew's every 28 months. Groove Stew's advantage is iOS requirement (13.0 vs 18.0). On price, 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

Groove Stew costs $1.99 and 421Grid $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Groove Stew ships an update every 28 months, 421Grid every 3 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
Groove Stew versus 421Grid: the parameters behind the verdict, then further details
ParameterGroove Stew421Grid
Price$1.99$1.99
Rating4.7 (7 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 28 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size114 MB4 MB
Age rating4+4+
DeveloperStuart PrayN. Wheeler

In-app purchases

None

Groove Stew

No in-app purchases

None

421Grid

No in-app purchases

Questions

Is Groove Stew free?
Groove Stew costs $1.99, with no in-app purchases.
Is 421Grid free?
421Grid costs $1.99, with no in-app purchases.
Do Groove Stew or 421Grid have ads?
Neither Groove Stew nor 421Grid shows ads.
Which is updated more often, Groove Stew or 421Grid?
Groove Stew ships an update every 28 months, and 421Grid every 3 months. Most recently, Groove Stew was updated on October 24, 2026 and 421Grid on October 15, 2026.

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