Comparison

PSA1000 vs Composer Lab

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

Head to head
About

PSA1000

This audio plugin emulates a classic '90s analog guitar preamp, offering rich saturation for various instruments and mix processing. It features independent channel controls, stereo widening, and phase manipulation for modern versatility.

Highlights
  • Analog saturation emulation
  • Independent left/right channel controls
  • Dry/Wet mix knob
  • Mid/Side processing
  • Stereo widening circuit
  • Phase Reverse switch
Features
Read full description

The PSA1000 Analog Saturation Unit plugin is a modern recreation of a '90s classic analog guitar preamp which is used in recording studios all around the world! It is used and "abused" for recording and characterizing not only guitars but also electric pianos, organs, synthesizers, electric basses and many other instruments. The original unit has found its place even in the mix stage for processing all type of sounds, as drum rooms, percussions, vocals, kicks, snares and sound fx too! For creating the PSA1000 Analog Saturation Unit plugin, Nembrini Audio has carefully modeled the original analog circuits and finely refined it by ear as all its products. Nembrini Audio also adds new features that brings the PSA1000 Analog Saturation Unit plugin to modern days: - Independent controls for left and right channels with individual and global links - Dry/Wet mix knob for both channels - Mid/Side operation - Spread circuit to widen the stereo field - Analog Link circuit to simulate the difference between left and right channels as in real analog world - Phase Reverse switch to take advantage of the original phase changes in the real analog unit when used in parallel - In and Out level knobs for maximum versatility Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect

About

Composer Lab

Explore harmonic structures, scales, and microtonal tuning systems. This app offers tools for organizing pitch material, crafting custom tunings, and managing rhythmic units for songwriting and composition.

Highlights
  • Harmonic structure exploration
  • Custom tuning system creation
  • Rhythmic unit management
  • Microtonal scale playback
  • DAW file export (.scl, .tun)
  • Pitch set theory principles
Features
Read full description

Set Module:
 The Set Module enables musicians to explore harmonic structures and scales of all kinds, and discover new ways of organizing pitch material. Built on the principles of pitch set theory, it offers an intuitive interface along with a rich set of practical tools. Features include fixed superset, fixed subset, invariance calculation, interval vector constraints, unfolding, and numeric recombination mode. The module is designed to make working with complex musical ideas easier and more intuitive, and can be used in songwriting, arranging, film scoring, and concert music composition. Tempo Module:
 The Tempo Module allows users to set a range for rhythmic units and define a tolerance for timing variations. It supports a system where up to six different tempos can be freely switched and converted. Tuning Module:
 Start at 1/1 and craft your own tuning system with cents or ratios. Map it onto a standard keyboard so you can transpose in 12ET or in precise cent steps. Hear your microtonal scales live, then export .scl and .tun files straight to your DAW—unlocking boundless realms beyond the twelve-tone limit. New Euclid and Orbit modules added! Detailed guide will be updated shortly.

Screenshots

PSA10001 screens
Composer Lab4 screens

Verdict

The call

The clearest difference is price: PSA1000 at $9.99 against Composer Lab's $17.99. PSA1000 also leads on ratings volume (10 vs 2) and iOS requirement (15 vs 18.2). Composer Lab's advantage is update cadence (every 3 days vs every 17 months). On rating, review sentiment, ads and in-app purchases 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

PSA1000 costs $9.99 and Composer Lab $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for PSA1000 against 5.0 for Composer Lab. That said, the two scores are not equally well evidenced: PSA1000 has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

PSA1000 ships an update every 17 months, Composer Lab every 3 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
PSA1000 versus Composer Lab: the parameters behind the verdict, then further details
ParameterPSA1000Composer Lab
Price$9.99 — better$17.99
Rating5.0 (10 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings10 — better2
Update frequencyEvery 17 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15 — better18.2
Further details — not scored
Size22 MB49 MB
Age rating4+4+
DeveloperNembrini Audio笑一 杨

Customer experience

PSA1000

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Composer Lab

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

PSA1000

No in-app purchases

None

Composer Lab

No in-app purchases

Questions

Is PSA1000 free?
PSA1000 costs $9.99, with no in-app purchases.
Is Composer Lab free?
Composer Lab costs $17.99, with no in-app purchases.
Which has better reviews, PSA1000 or Composer Lab?
PSA1000 and Composer Lab are both rated 5.0 out of 5 on the App Store, from 10 and 2 ratings respectively.
Do PSA1000 or Composer Lab have ads?
Neither PSA1000 nor Composer Lab shows ads.
Which is updated more often, PSA1000 or Composer Lab?
PSA1000 ships an update every 17 months, and Composer Lab every 3 days. Most recently, PSA1000 was updated on November 7, 2026 and Composer Lab on November 5, 2026.

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