Comparison

JULY vs Musical Demon's Impulse

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

Head to head
About

JULY

This app faithfully emulates a classic 1980s polyphonic analog synthesizer. It meticulously models the original's circuits, offering its warm sound and signature chorus effect in a software format. It functions as both an AUv3 plugin and a standalone application.

Highlights
  • Faithful emulation of iconic 1980s polyphonic analog synth
  • Detailed circuit modeling
  • Warm DCO sound
  • Silky filter
  • Unmistakable chorus effect
  • AUv3 plugin and standalone operation
Features
Read full description

JULY is a faithful emulation of one of the most iconic polyphonic analog synthesizers from the early 1980s. We spent months living with the original, studying every quirk and charm, from the warm, steady DCO to the silky filter and that unmistakable chorus, then modeled its circuits in detail to bring its soul into software. Available as AUv3 and Standalone

About

Musical Demon's Impulse

Features
Read full description

Impulse is a focused, musician‑built tool for capturing clean, accurate impulse responses from your own cabinets, rooms, and signal chains. Designed for engineers, guitarists, producers, and sound designers, it delivers a streamlined workflow with precise alignment, intelligent safety checks, and fast export. With real‑time environmental analysis, automatic trimming, and a robust deconvolution engine, Impulse helps you capture reliable IRs anywhere — from studios to rehearsal spaces. Whether you’re building a personal IR library or refining your live rig, Impulse gives you the clarity and control you need.

Screenshots

JULY3 screens
Musical Demon's Impulse4 screens

Verdict

The call

The clearest difference is price: Musical Demon's Impulse at Free against JULY's $19.99. Musical Demon's Impulse also leads on update cadence (fortnightly vs every 6 weeks). JULY's advantage is iOS requirement (15.0 vs 17). 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

Musical Demon's Impulse is free to download; JULY costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

JULY ships an update every 6 weeks, Musical Demon's Impulse fortnightly. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

Scorecard3 real differences · 7 level
JULY versus Musical Demon's Impulse: the parameters behind the verdict, then further details
ParameterJULYMusical Demon's Impulse
Price$19.99Free — better
Rating4.7 (15 ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings15 — better—
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17
Further details — not scored
Size28 MB5 MB
Age rating4+4+
DeveloperAudioThing Ltd.Steve Chavez

In-app purchases

None

JULY

No in-app purchases

None

Musical Demon's Impulse

No in-app purchases

Questions

Is JULY free?
JULY costs $19.99, with no in-app purchases.
Is Musical Demon's Impulse free?
Musical Demon's Impulse is free to download, with no in-app purchases.
Do JULY or Musical Demon's Impulse have ads?
Neither JULY nor Musical Demon's Impulse shows ads.
Which is updated more often, JULY or Musical Demon's Impulse?
JULY ships an update every 6 weeks, and Musical Demon's Impulse fortnightly. Most recently, JULY was updated on October 25, 2026 and Musical Demon's Impulse on October 19, 2026.

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