# Harmonium Plus HD vs Harmonium Sim

The clearest difference is ads: Harmonium Plus HD at none against Harmonium Sim's shown. Harmonium Plus HD also leads on update cadence (monthly vs every 3 months). Harmonium Sim's advantage is rating (4.3 vs 3.9). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Harmonium Plus HD sells 1 one-off in-app purchase and Harmonium Sim sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Harmonium Sim holds the better App Store score, 4.3 against 3.9. Both are backed by a comparable volume of ratings — 120 and 49 respectively. Written reviews split almost evenly too, at 67% and 67% positive.

Harmonium Plus HD ships an update monthly, Harmonium Sim every 3 months. The most recent releases landed on September 19, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Harmonium Plus HD | Harmonium Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (120 ratings)](https://appshunter.io/ios/app/harmonium-plus-hd/id543122041/reviews) | **[4.3 (49 ratings)](https://appshunter.io/ios/app/harmonium-sim/id6740080365/reviews)** |
| Number of ratings | **120** | 49 |
| Positive reviews | **67.2% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 26 MB | 135 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Software-Kitchen](https://appshunter.io/developer/494057596) | [Alper Kahriman](https://appshunter.io/developer/1054578352) |

## What reviewers say

### Harmonium Plus HD

[App page](https://appshunter.io/ios/app/harmonium-plus-hd/id543122041)

Experience a professional-grade virtual harmonium with realistic sounds and multi-touch capabilities. Play Bollywood songs or practice ragas with a full six octaves and recording features. An in-app upgrade unlocks all PRO features for an enhanced experience.

**Highlights:** Realistic studio-quality harmonium sounds, True multi-touch with adjustable key widths, Play regular and coupler sounds, Six octaves for both regular and coupler harmoniums, Record and playback functionality, Transpose keys, Adjustable responsiveness (sustain)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Harmonium Plus Pro Upgrade | $4.99 | one-time |

**What reviewers like**

- 🚀 Great for practice
- 👍 Easy to use
- 👍 Nice sound
- 👍 Convenient for on-the-go
- 👍 Authentic harmonium feel

**What reviewers complain about**

- 🔒 Need to pay for full features
- 🐛 Bugs and crashes
- 👎 Tuning/pitch issues
- 👎 Small keyboard size
- 👎 Limited functionality in free version

**Reported bugs**

- Keys getting stuck
- App crashing on certain devices
- Incorrect note mapping
- Pro features not working as expected

**Requested features**

- More songs/shabads
- Ability to connect MIDI keyboard
- Internal volume control
- Ability to change octaves easily
- Recording and export options


### Harmonium Sim

[App page](https://appshunter.io/ios/app/harmonium-sim/id6740080365)

Experience the authentic sounds of the harmonium on your device. This app offers realistic tones, advanced playability features, and recording capabilities for musicians and enthusiasts.

**Highlights:** Authentic harmonium sounds, Echo and chorus effects, Sensitive play mode, Microtonal tuning, Three dynamic play modes, Built-in recorder, Customizable interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium | $9.99 | one-time |


## Frequently asked questions

### Is Harmonium Plus HD free?

Harmonium Plus HD is free to download, with in-app purchases available.

### Is Harmonium Sim free?

Harmonium Sim is free to download, with in-app purchases available.

### Which has better reviews, Harmonium Plus HD or Harmonium Sim?

Harmonium Sim is rated higher. Harmonium Plus HD averages 3.9 out of 5 from 120 ratings, while Harmonium Sim averages 4.3 from 49 ratings.

### Do Harmonium Plus HD or Harmonium Sim have ads?

Harmonium Sim shows ads; Harmonium Plus HD does not.

### Which is updated more often, Harmonium Plus HD or Harmonium Sim?

Harmonium Plus HD ships an update monthly, and Harmonium Sim every 3 months. Most recently, Harmonium Plus HD was updated on September 19, 2026 and Harmonium Sim on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*