Comparison

BARBARA the Metronome vs GORILLA SYNTH

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

Head to head
About

BARBARA the Metronome

Create and play complex metronomic sequences with customizable time signatures, rests, and alternative sounds. Offers quick start for traditional rhythms and advanced programmable features for musicians.

Highlights
  • Create metronomic sequences
  • Variable time signatures per bar
  • Rests between bars
  • Alternative metronome sounds
  • Programmable tempo changes
  • Sequence repetition options
  • Save and name custom sequences
Features
Read full description

With BARBARA you can quickly create and play metronomic sequences of bars, and the bars can have different time signatures. You can put rests between bars, and you can use alternative metronome sounds for selected bars. You can specify how many times, or minutes, each bar is played. BARBARA has many pages of buttons with which you can create sequences of bars. The buttons are marked with familiar musical symbols. BARBARA is a programmable metronome as its operation is based on the sequences of bars that are created with the buttons. Although BARBARA can be made to play bars with different time signatures, musicians most often need the basic metronomic functionalities. For these purposes BARBARA has a Quick Start button with which you can quickly start making some traditional rhythms or a monotonous metronome sound. You can set the tempo and activate the metronome by tapping an empty area of the main screen. With tempo buttons you can set or change the tempo of the metronome in any position in a sequence of bars. When tempo is programmed in a sequence, you can make BARBARA play a certain bar for a certain number of minutes. Special buttons exist to accelerate or slow down the tempo within a number of bars. BARBARA can be made to tick certain sections of music with a different metronome sound. One way to utilise this feature is to use the secondary metronome sound to mark changes in a piece of music. In addition to traditional metronome sounds, BARBARA can play simple drum sounds. Sequences of metronomic bars can be created so that they contain both traditional metronome sounds and drum sounds. There are several ways how BARBARA can repeat sequences of bars. You can even create a repeated sequence that is inside a longer sequence that is also repeated. BARBARA will store the sequences of bars that you create. You can name your sequences and play them later. A named sequence can be sent to a friend in a message. The metronome app contains many demo sequences that will help you to learn how the metronome can be used. You can copy and modify the demo sequences for your own purposes.

About

GORILLA SYNTH

This app offers a punchy, analog-style subtractive synthesizer for iOS, designed for fast sound design and expressive musical performance. It provides studio-quality sound with a clean interface, ideal for sketching ideas, producing tracks, or live playing.

Highlights
  • Dual oscillators with sub and noise
  • Classic ladder filter
  • Dual ADSR envelopes
  • Duophonic mode with glide
  • LFO modulation
  • Touch-optimized controls
  • AUv3 instrument support
Features
Read full description

GORILLA - Analog-Style Subtractive Synth GORILLA is a focused, punchy analog-style subtractive synthesizer designed for fast sound design and expressive play on iOS. Built for musicians, producers, and sound designers, Gorilla delivers studio-quality sound in a clean, performance-ready interface — whether you’re sketching ideas, producing tracks, or playing live. Key Features: - Dual oscillators with sub and noise - Classic ladder filter - Dual ADSR envelopes (Filter + Amp) - Duophonic mode with glide - LFO for pitch, filter, and PWM modulation - Touch-optimized performance controls - Built-in spectrum / EQ visualizer - AUv3 instrument support - CoreMIDI & Bluetooth MIDI - Designed for iPhone and iPad Gorilla is intentionally focused — no clutter, no distractions. Just fast access to powerful sound shaping and expressive control. Designed for mobility. Built for creation.

Screenshots

BARBARA the Metronome4 screens
GORILLA SYNTH4 screens

Verdict

The call

The clearest difference is update cadence: GORILLA SYNTH at every 3 weeks against BARBARA the Metronome's every 3 months. GORILLA SYNTH also leads on ratings volume (22 vs 2) and price ($4.99 vs $6.99). On rating, ads, in-app purchases and monetization model 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

BARBARA the Metronome costs $6.99 and GORILLA SYNTH $4.99 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 BARBARA the Metronome against 4.9 for GORILLA SYNTH. That said, the two scores are not equally well evidenced: GORILLA SYNTH has 22 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

BARBARA the Metronome ships an update every 3 months, GORILLA SYNTH every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
BARBARA the Metronome versus GORILLA SYNTH: the parameters behind the verdict, then further details
ParameterBARBARA the MetronomeGORILLA SYNTH
Price$6.99$4.99 — better
Rating5.0 (2 ratings) — better4.9 (22 ratings)
Positive reviews—87.5% of reviews
Number of ratings222 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.2 — better
Further details — not scored
Size5 MB4 MB
Age rating4+4+
DeveloperAsteroid Zone SoftwareSteffen Mølgaard Larsen

Customer experience

BARBARA the Metronome

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

GORILLA SYNTH

All ratings22 ratings
Positive95.5%
Neutral4.5%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

In-app purchases

None

BARBARA the Metronome

No in-app purchases

None

GORILLA SYNTH

No in-app purchases

Questions

Is BARBARA the Metronome free?
BARBARA the Metronome costs $6.99, with no in-app purchases.
Is GORILLA SYNTH free?
GORILLA SYNTH costs $4.99, with no in-app purchases.
Which has better reviews, BARBARA the Metronome or GORILLA SYNTH?
BARBARA the Metronome is rated higher. BARBARA the Metronome averages 5.0 out of 5 from 2 ratings, while GORILLA SYNTH averages 4.9 from 22 ratings.
Do BARBARA the Metronome or GORILLA SYNTH have ads?
Neither BARBARA the Metronome nor GORILLA SYNTH shows ads.
Which is updated more often, BARBARA the Metronome or GORILLA SYNTH?
BARBARA the Metronome ships an update every 3 months, and GORILLA SYNTH every 3 weeks. Most recently, BARBARA the Metronome was updated on November 3, 2026 and GORILLA SYNTH on October 30, 2026.

Other comparisons