Comparison

PLAYnJAM vs ABDCTN

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

Head to head
About

PLAYnJAM

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Become a real pianist now! and Discover the Music band. A lot of fun, with Two Play modes: Playmode 1: iPad alone Play Piano tiles game or Play 8 different instruments. Piano, Rock Organ, Church organ, Strings, Guitar, Pan Flute, Trumpet, Synth Each songs have 3 different arrangements Pop, Hip hop, or Electro and are progressive. Playmode 2: Connect in Bluetooth the non included iDance Keyboard Controller PLAYKEYS25 and Enjoy a real 25 keys high quality keyboard, with direct access to the 8 instruments, and discover 10 more instruments to play, without any inapp. All Menu pages can be accessed from your PLAYKEYS25 as well. How fun is it to capture the most precious moments of the year with a wink of rhythms? Let’s MUSIC your soul with the beat of most popular kid’s songs. 
 PLAYnJAM key features: 
Appealing, modern and diverse music genres to satisfy every music taste! 8 instruments to play the solo in direct access during demo mode, learn mode or game mode. We have 3x styles per songs: Pop, Hip hop, or Electro, hear the music like you never heard it before. Discover instruments mode (when connected to the iDance PLAYKEYS25 keyboard) with total of 18 instruments Discover Instruments mode includes cartoon video to present the instruments Learning mode have 3 speeds, learn at your pace. 
 Game’s rules: 1. Tap the correct keys 2. Avoid the wrong keys 3. Play on time, you can lower the tempo So, get ready to try out the most challenging piano game for free! 
Besides, to improve the game’s performance and offer a customized user experience, It is recommended to use the iDance PLAYKEYS25 Keyboard. Support: Are you having any problems? Send the email to info@idanceintl.com or contact us on our web site. 
PLAYnJAM is from iDance, the number one Karaoke and Musical instruments company for Youngster and teenagers. Music lovers can interact with hundred of our gear in our ecosystem. At iDance, we believe that it is YOUR MUSIC, it is YOUR STYLE – MUSIC is Easy, MUSIC is Fun.

About

ABDCTN

This app generates classic sci-fi synthesizer sounds live from oscillators, filters, and envelopes. Interact with a visual farm interface where elements control sound parameters. Create unique sounds by bending, stretching, and rebuilding them.

Highlights
  • Live sound generation
  • Visual instrument interface
  • Interactive sound manipulation
  • Customizable oscillators and filters
  • Automated sound sequencing
  • AUv3 instrument support
Features
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Every science-fiction film had a sound department, and somewhere in it stood a synthesizer. ABDCTN is that synthesizer, rebuilt for your phone and your iPad: not a collection of recordings of those sounds, but the machine that makes them. Theremins, saucers, tractor beams, alarms, talking computers, and everything in between, generated live from oscillators, filters and envelopes. Each sound is a starting point, yours to bend, stretch and rebuild until it is one nobody has heard before. THE PICTURE IS THE INSTRUMENT There are no knobs, no sliders, no menus. The whole screen is a farm at night, and everything on it is a control. The fence is the keyboard: planks are white keys, flower pots are black keys. The alien on the left is the envelope: pull its body for attack, stretch its neck for decay, lift and reach its hands for sustain and release. The alien on the right is the filter. Lift the cow's tail to detune, lift the whole cow into the beam and the reverb grows. Slide the barn door for volume. Raise the chimney for drive. Tap the hayloft window to crush the bits. The clouds are the LFO: how much, how fast, what shape. Drag the saucer higher and the echo follows. Tap a light on the saucer to choose a sound, tap the moon to change the bank. THE RAY GUN A ray gun hangs next to the moon, and it makes the farm play itself. Tap the gun to choose the ray's speed. Light blue sweeps every second, cyan every three seconds and pink every ten. Tap once more for static, which erases. Hold the gun and it comes off its hook. Point its tip at anything on the farm, and whatever lights up yellow can be hit: an alien's legs, neck or either hand, the cow or her tail, the saucer's dome, the barn door, the chimney, the hayloft window or a cloud. Let go and that part turns the ray's colour. It then sweeps from one end of its range to the other on its own, in time with the sound. The filter opens and closes, the cow floats up into the reverb and sinks back, the window flickers the crusher on and off, and the third cloud steps through the LFO shapes. Shoot as many parts as you like, each at its own speed. Touch a swept part and it holds still under your finger. Shoot a part with static to stop its ray, or double-tap the gun to clear every ray on the sound. Rays are saved with each sound and in your presets. In a host, every ray is an automatable parameter. Every edit is remembered per sound. Hold a light to take a sound back to the factory. A REAL SYNTHESIZER Two oscillators with band-limited saw and pulse, an endless Shepard stack for lifts that never stop rising, noise and ring modulation. A state-variable filter that sweeps from low-pass through band-pass to high-pass, with envelope, key tracking and LFO. Real stereo: the oscillators spread across the field, voices sit where their keys are, a ping-pong tape echo bounces between the speakers, a spring-like reverb on each side. IN THE STUDIO Works as an AUv3 instrument in AUM, Drambo, Logic Pro, GarageBand and other hosts, with the same picture inside the host and every control exposed as an automatable parameter. MIDI 2.0 with full MPE: per-note pitch bend, pressure and timbre, so expressive controllers play it the way they were meant to. A hold latch keeps chords sounding with no fingers on the screen, and the instrument keeps playing in the background from a MIDI keyboard. Save and load your own presets from the transmission log. Pay once, own it. No subscription, no ads, no account, no tracking, nothing leaves your device. Somewhere a cow is rising slowly into the light. She sounds wonderful.

Screenshots

PLAYnJAM4 screens
ABDCTN1 screens

Verdict

The call

The clearest difference is price: PLAYnJAM at Free against ABDCTN's $3.99. PLAYnJAM also leads on iOS requirement (13.4 vs 18.0). ABDCTN's advantage is update cadence (daily vs every 2 months). On 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

PLAYnJAM is free to download; ABDCTN costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PLAYnJAM ships an update every 2 months, ABDCTN daily. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 6 level
PLAYnJAM versus ABDCTN: the parameters behind the verdict, then further details
ParameterPLAYnJAMABDCTN
PriceFree — better$3.99
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.4 — better18.0
Further details — not scored
Size147 MB2 MB
Age rating4+9+
DeveloperiDanceLASZLO DOBROVOLSZKI

In-app purchases

None

PLAYnJAM

No in-app purchases

None

ABDCTN

No in-app purchases

Questions

Is PLAYnJAM free?
PLAYnJAM is free to download, with no in-app purchases.
Is ABDCTN free?
ABDCTN costs $3.99, with no in-app purchases.
Do PLAYnJAM or ABDCTN have ads?
Neither PLAYnJAM nor ABDCTN shows ads.
Which is updated more often, PLAYnJAM or ABDCTN?
PLAYnJAM ships an update every 2 months, and ABDCTN daily. Most recently, PLAYnJAM was updated on October 13, 2026 and ABDCTN on October 19, 2026.

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