Comparison

Harmonium Anywhere vs GSDSP Quantum Delay Lite

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

Head to head
About

Harmonium Anywhere

This app offers a realistic harmonium experience on your mobile device, perfect for practice or performance when a real instrument isn't available. It features high-quality sampled sounds, multiple octaves, and various notation systems.

Highlights
  • 3 octaves
  • Multi-touch keyboard
  • High-quality harmonium sound
  • Reference/Highlighter key
  • Scale changer
  • Multiple notation formats
  • Recording and playback
Features
Read full description

Harmonium Anywhere as name says is a best alternate to a real Harmonium. If you are travelling or has no access to real harmonium, or just need a quick practice before performance, you will find Harmonium Anywhere pretty handy. Samples are recorded from a high quality Made in India Harmonium. For quick practice sessions, this is a must have application. Harmonium Anywhere provides: - 3 octaves. - Multi touch keyboard. - Coupler feature (Right Octave). - Real harmonium high quality sound with 3 sustain levels. - Reference/Highlighter key, to allow especially kids to remember the start note. - Scale changer up to 12 notes. - Note identifier in 3 different formats: Western, Gurmukhi, Devanagari Notations. - Scroll lock feature to lock accidental scroll of keyboard. - Display Optimized for both iPhones and iPads. - Designed keeping the needs of Kids who don't have real harmoniums. - Compatible with other music apps, e.g. tabla apps on app store. - Zoom button added to provide more keys especially on iPads. - Now you can either record: - Harmonium sound only - Any sound including Harmonium with the help of in-built microphone. - Playback recordings, share on social sites or with friends, teachers, etc. - Better sound clarity. - MIDI support - More features will follow based on user feedback/reviews. - Loop feature for each harmonium key

About

GSDSP Quantum Delay Lite

This audio effect plugin offers vintage-inspired stereo delay with deep modulation, flexible filtering, and creative timing options. It allows for precise control over echoes, from warm analog sounds to shimmering textures, and integrates an advanced modulation system for unique sound design.

Highlights
  • Vintage-inspired stereo delay
  • Deep modulation system
  • Flexible filtering
  • Creative timing controls
  • Precise feedback control
  • Crossfeed and Over-Feedback options
Features
Read full description

A vintage-inspired delay supercharged with deep modulation, flexible filtering, and creative timing that pushes echoes into new dimensions. This is the free Lite version of Quantum Delay. Enjoy it? Go pro with the full version. Classic Delay, Reinvented Quantum Delay Lite takes the charm of a vintage stereo delay and fuses it with our next-level modulation system. Switch between the warm character of Tape mode and the pristine clarity of Fade mode, lock to BPM (including 5-tuplets) or dial in precise times in milliseconds. Use the Fine control for subtle push-and-pull micro-timing — or modulate your delay lines in ways traditional delays could only dream of. Sculpted Echoes Shape your repeats with a lowpass filter placed directly in the feedback path. Add modulation to create evolving tones, gentle movement, or drifting, frequency-shifting echoes. From warm analog-style rolls to shimmering, swirling textures, it’s all there. Feedback with Precision Control your delay tail behavior using either traditional % feedback or our modern dB-per-second decay system — ideal for predictable, musical decay even when the feedback path becomes complex. Enable Crossfeed for classic ping-pong stereo bounce, or push into Over-Feedback to create dense, self-building echoes that drift toward infinity. Modulation Without Limits Quantum Delay Lite integrates our advanced modulation system, letting you modulate nearly anything: delay time, filters, feedback parameters, and more. Use LFOs, Random Generators, 2D modulators, Envelope Followers, Macros, and even chaotic systems to push your echoes far beyond traditional delay behavior. Or use our parameter randomisation feature to explore the plugin’s sound at random. Quantum Delay Lite is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

Screenshots

Harmonium Anywhere1 screens
GSDSP Quantum Delay Lite3 screens

Verdict

The call

The clearest difference is price: GSDSP Quantum Delay Lite at Free against Harmonium Anywhere's $4.99. GSDSP Quantum Delay Lite also leads on rating (5.0 vs 4.5) and update cadence (every 6 weeks vs every 6 months). Harmonium Anywhere's advantage is ratings volume (465 vs 4) and iOS requirement (11.0 vs 13.0). On ads, in-app purchases, monetization model 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

GSDSP Quantum Delay Lite is free to download; Harmonium Anywhere costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GSDSP Quantum Delay Lite holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Harmonium Anywhere has 465 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Harmonium Anywhere ships an update every 6 months, GSDSP Quantum Delay Lite every 6 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Harmonium Anywhere versus GSDSP Quantum Delay Lite: the parameters behind the verdict, then further details
ParameterHarmonium AnywhereGSDSP Quantum Delay Lite
Price$4.99Free — better
Rating4.5 (465 ratings)5.0 (4 ratings) — better
Positive reviews56.3% of reviews—
Number of ratings465 — better4
Update frequencyEvery 6 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size64 MB58 MB
Age rating4+4+
DeveloperRanjeet Singh DevgunGustav Scholda

Customer experience

Harmonium Anywhere

All ratings462 ratings
Positive89.4%
Neutral3.9%
Negative6.7%
Written reviews80 reviews
Positive56.3%
Neutral12.5%
Negative31.3%

GSDSP Quantum Delay Lite

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Harmonium Anywhere

Reported bugs

4 issues
  • App freezes and sound gets stuck
  • Volume controller doesn't work with MIDI keyboards
  • Issues with output and settings
  • App crashes when trying to record

Requested features

7 requests
  • Add sustain/hold feature for notes
  • Improve key responsiveness and sliding
  • Add more octave range
  • Provide customizable key size and layout
  • Implement Bluetooth MIDI connectivity
Show 2 more
  • Add recording and playback functionality
  • Improve compatibility with MIDI keyboards

GSDSP Quantum Delay Lite

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Harmonium Anywhere

No in-app purchases

None

GSDSP Quantum Delay Lite

No in-app purchases

Questions

Is Harmonium Anywhere free?
Harmonium Anywhere costs $4.99, with no in-app purchases.
Is GSDSP Quantum Delay Lite free?
GSDSP Quantum Delay Lite is free to download, with no in-app purchases.
Which has better reviews, Harmonium Anywhere or GSDSP Quantum Delay Lite?
GSDSP Quantum Delay Lite is rated higher. Harmonium Anywhere averages 4.5 out of 5 from 465 ratings, while GSDSP Quantum Delay Lite averages 5.0 from 4 ratings.
Do Harmonium Anywhere or GSDSP Quantum Delay Lite have ads?
Neither Harmonium Anywhere nor GSDSP Quantum Delay Lite shows ads.
Which is updated more often, Harmonium Anywhere or GSDSP Quantum Delay Lite?
Harmonium Anywhere ships an update every 6 months, and GSDSP Quantum Delay Lite every 6 weeks. Most recently, Harmonium Anywhere was updated on October 26, 2026 and GSDSP Quantum Delay Lite on October 25, 2026.

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