Comparison

KORG Module vs Synth Bass Pro

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

Head to head
About

KORG Module

This app offers professional piano and keyboard sounds for mobile devices. The free version provides access to high-quality piano sounds, with options to unlock more sound libraries and features through in-app purchases or by connecting Korg MIDI controllers.

Highlights
  • High-quality piano and keyboard sounds
  • Customizable sound sets with over 30 libraries
  • AUv3 support
  • Ultra-low latency sound engine
  • Unlock sounds with Korg MIDI controllers
Features
Read full description

The best sounds, available to everyone. FREE version lets you experience the high-quality piano & keyboard sound. Announcing a new high-quality mobile sound module app for iOS! • KORG Module Pro (Full version): Achieved the #1 position on Ideal for performance and music production, KORG Module is a high-quality sound module app for iOS that contains a professional sound library. With just your iPad/iPhone and a MIDI keyboard such as the KORG microKEY, you can play studio-quality keyboard and grand piano sounds anywhere. FEATURE HIGHLIGHTS ● With just an iPad/iPhone and the new microKEY, you can enjoy great sound anywhere ● Stunningly high-quality piano for free. ● Customize your sound set: Available over 30 sound libraries from the Store page. ● AUv3 support ● Ultra-low latency sound engine ● Unlock additional 4 sounds by connecting Korg MIDI controllers/synthesizers. Check the details from www.korg.com/bundle. More info at https://www.korg.com/products/software/korg_module/ !

About

Synth Bass Pro

Create powerful low-end sounds with three iconic synth bass presets. Features an 808 "drop" note for impactful builds and bridges, offering an alternative to traditional bass guitars for various music genres.

Highlights
  • Three iconic synth bass sounds
  • 808 "drop" note for builds
  • Low-end sound alternative
  • Infinite loop possibilities
  • Suitable for various music genres
Features
Read full description

Synth Bass Pro is the Premier Synth Bass App to give you the best sounding Low End without the string noise of a standard bass guitar and infinite loop possibilities. Containing Three Iconic synth bass sounds, you are sure to have exactly what you need for many genres of music. Synth Bass Pro is loaded with an 808 "drop" note as well for builds, bridges, and bass drops. Designed to be one size fits all, SBP is preset with three iconic synth bass sounds, rather than customizable settings: - Brown (Soft, Gentile) - Blue (Extra Wide, Deep, and mid-rangy) - Green (Some Grit, yet smooth) How I use Synth Bass Pro: I love using Synth Bass in substitution of a standard bass guitar during certain parts of a song that are lower in volume or dynamics. If a song has a build that goes into a lower chorus, this is what I would use to continue the "emotion" of the song during that chorus, while maintaining the soft chorus feel. Additionally, I love the 808 bass drop feature. Typically I use this feature at the end of a big bridge build and into a big chorus. In my genre, Worship Music, I feel it adds an extra sonic layer that I absolutely love. I recommend using this app with proper sound equipment that can handle lower frequencies and it will sound even better when connected to something that has a subwoofer. I hope you enjoy it!

Screenshots

KORG Module4 screens
Synth Bass Pro4 screens

Verdict

The call

The clearest difference is review sentiment: KORG Module at 52% against Synth Bass Pro's 0%. KORG Module also leads on price (Free vs $1.99) and rating (4.6 vs 3.0). Synth Bass Pro's advantage is in-app purchases (none vs 21). On ads, device support and iOS requirement 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

KORG Module is free to download; Synth Bass Pro costs $1.99 up front. KORG Module sells 21 one-off in-app purchases. Synth Bass Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

KORG Module holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: KORG Module has 783 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 52% of KORG Module's written reviews are positive against 0% of Synth Bass Pro's.

UpkeepUpdate frequency

KORG Module ships an update monthly, Synth Bass Pro every 4 months. The most recent releases landed on October 17, 2026 and October 13, 2026 respectively.

Scorecard7 real differences · 3 level
KORG Module versus Synth Bass Pro: the parameters behind the verdict, then further details
ParameterKORG ModuleSynth Bass Pro
PriceFree — better$1.99
Rating4.6 (783 ratings) — better3.0 (2 ratings)
Positive reviews51.7% of reviews — better0.0% of reviews
Number of ratings783 — better2
Update frequencyMonthly — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.614.3 — better
Further details — not scored
Size1.7 GB47 MB
Age rating4+4+
DeveloperKORG INC.Caleb Smith

Customer experience

KORG Module

All ratings783 ratings
Positive88.6%
Neutral4.3%
Negative7.0%
Written reviews261 reviews
Positive51.7%
Neutral12.3%
Negative36.0%

Synth Bass Pro

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

KORG Module

Reported bugs

4 issues
  • Purchased sounds disappearing after updates
  • Inability to delete individual modules to save space
  • Inconsistent behavior with Bluetooth MIDI controllers
  • Crashes when using certain expansion packs

Requested features

5 requests
  • Add virtual pitch bend and modulation wheels
  • Improve Gadget integration and availability of IAPs
  • Implement AUv3 support for better integration
  • Provide a more intuitive and streamlined interface
  • Add more instrument categories like brass, woodwinds, and Latin percussion

Synth Bass Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

21 purchases

KORG Module

One-time21
  • 7-day trial:TRITON Best selectFree
  • 7-day trial : Organ & ClavFree
  • 7-day trial : Module Perf ExpFree
Show 18 more
  • 7-day trial : Ivory GrandFree
  • 7-day trial : Ivory American DFree
  • 7-day trial:Essential CompleteFree
  • 7-day trial Hybrid 2Free
  • 7-day trial : 80s Dance PopFree
  • 7-day Trial : GENERAL 128Free
  • 7-day trial : OASYS PianoFree
  • 7-day Trial: M1 Best SelectionFree
  • 7-day Trial : Wild KitsFree
  • 7-day Trial : Neo SoulFree
  • 7-day trial : 80's E.PianoFree
  • 7-day Trial : Classic EP-88MFree
  • 7-day trial : Dreamy SynthsFree
  • Hybrid Synth Pack 2$4.99
  • Space Western$6.99
  • TRITON Best Selection$9.99
  • Essential Complete$19.99
  • Module Performance Expansion$29.99
None

Synth Bass Pro

No in-app purchases

Questions

Is KORG Module free?
KORG Module is free to download, with in-app purchases available.
Is Synth Bass Pro free?
Synth Bass Pro costs $1.99, with no in-app purchases.
Which has better reviews, KORG Module or Synth Bass Pro?
KORG Module is rated higher. KORG Module averages 4.6 out of 5 from 783 ratings, while Synth Bass Pro averages 3.0 from 2 ratings.
Do KORG Module or Synth Bass Pro have ads?
Neither KORG Module nor Synth Bass Pro shows ads.
Which is updated more often, KORG Module or Synth Bass Pro?
KORG Module ships an update monthly, and Synth Bass Pro every 4 months. Most recently, KORG Module was updated on October 17, 2026 and Synth Bass Pro on October 13, 2026.

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