Comparison

STEPS vs jAmp Doubler

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

Head to head
About

STEPS

Create complex rhythmic patterns with this powerful MIDI sequencer. Control any MIDI-compatible app, send MIDI over network, and synchronize external hardware synths. Features a user-friendly interface for seamless performance and editing.

Highlights
  • MIDI-out system
  • Bluetooth LE MIDI support
  • Audiobus 3 support
  • External hardware synchronization
  • Performance and editing modes
  • Ableton Link integration
  • Global swing and BPM control
Features
Read full description

Steps by Reactable is a small yet powerful MIDI sequencer that allows you to create complex rhythmic patterns in a surprising new way. Forget piano rolls and experiment with Steps’ inspiring dials. With Steps you can control any MIDI compatible app, send MIDI over network to your laptop or any other compatible device, and even synchronize external hardware analog synths such as Korg Volcas or Pocket Operators via an audio cable. Features: - Plug and play MIDI-out system automatically sends to all available MIDI input ports and our own virtual port. - Bluetooth LE MIDI support - Audiobus 3 Support as MIDI and Audio Sender - Connect your iDevice with an external MIDI interface and control MIDI hardware. - Synchronize external hardware synths such as Korg Volca or Pocket operators via the audio output. - A carefully designed user interface that allows you to quickly switch between performance to editing mode. - Play together with Ableton Link and sync multiple apps and devices over WiFi. - Global Swing function (50% - 75%) - applied automatically to eight and sixteenth notes. - Save and recall sequences, seamlessly during playback. - Global bpm control ranging from 20 to 999 BPM. - Global Gate level allows global control of note duration. - Global MIDI velocity control. - Global Glide function applies pitch bend to small distances between adjacent steps (if the synth being controlled supports pitch bend). - Global transpose ribbon allows for easy transposition of the entire pattern. - Step pitch preview function (available while transport is stopped).

About

jAmp Doubler

This audio plugin creates a stereo effect by introducing a subtle delay to one audio channel. It offers precise control over the delay time and can be managed via MIDI. Ideal for enhancing mono audio sources with a wider soundstage.

Highlights
  • Stereo widening effect
  • Adjustable delay time (0-50 microseconds)
  • MIDI control
  • AUv3 plugin format
  • Enhances mono audio
Features
Read full description

Doubler is an AUv3 plugin that adds stereo effect by delaying the right channel wrt the left channel. The delay is controlled by the central knob and goes from 0 microseconds to 50 microseconds. It is possible to control this plugin via MIDI.

Screenshots

STEPS4 screens
jAmp Doubler1 screens

Verdict

The call

The clearest difference is price: jAmp Doubler at Free against STEPS's $0.99. jAmp Doubler also leads on review sentiment (100% vs 56%) and rating (5.0 vs 3.9). STEPS's advantage is ratings volume (13 vs 4) and iOS requirement (9.0 vs 14.0). 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

jAmp Doubler is free to download; STEPS costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

jAmp Doubler holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 13 and 4 respectively. Written reviews point the same way: 56% of STEPS's written reviews are positive against 100% of jAmp Doubler's.

UpkeepUpdate frequency

STEPS ships an update every 3 weeks, jAmp Doubler every 9 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

Scorecard7 real differences · 3 level
STEPS versus jAmp Doubler: the parameters behind the verdict, then further details
ParameterSTEPSjAmp Doubler
Price$0.99Free — better
Rating3.9 (13 ratings)5.0 (4 ratings) — better
Positive reviews55.6% of reviews100.0% of reviews — better
Number of ratings13 — better4
Update frequencyEvery 3 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better14.0
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperReactable Systems SLJan Maes

Customer experience

STEPS

All ratings13 ratings
Positive76.9%
Neutral7.7%
Negative15.4%
Written reviews18 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

jAmp Doubler

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

STEPS

No in-app purchases

None

jAmp Doubler

No in-app purchases

Questions

Is STEPS free?
STEPS costs $0.99, with no in-app purchases.
Is jAmp Doubler free?
jAmp Doubler is free to download, with no in-app purchases.
Which has better reviews, STEPS or jAmp Doubler?
jAmp Doubler is rated higher. STEPS averages 3.9 out of 5 from 13 ratings, while jAmp Doubler averages 5.0 from 4 ratings.
Do STEPS or jAmp Doubler have ads?
Neither STEPS nor jAmp Doubler shows ads.
Which is updated more often, STEPS or jAmp Doubler?
STEPS ships an update every 3 weeks, and jAmp Doubler every 9 days. Most recently, STEPS was updated on October 16, 2026 and jAmp Doubler on October 12, 2026.

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