Oscillator vs Handy Harp II
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oscillator
Generate simple audio tones with four distinct waveforms including sine, square, saw, and white noise. Control frequency, panning, and amplitude with intuitive sliders and numeric input. Ideal for testing audio or creating experimental music.
- Four waveforms (sine, square, saw, white noise)
- Exponential frequency control
- Numeric frequency input
- Panning control
- Amplitude control
- Multi-touch controls
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Oscillator is a simple and rough audio generator application which has the following functions. You can use it as a test tone and play it as a strange musical instrument. - Four waveforms. (i.e. sine wave, square wave, saw wave and white noise.) - Exponential Frequency control using the slider. - Frequency numeric input using the software keyboard. - Equal distance panning control using the slider. - dB style amplitude control using the slider. - Sound output on/off button. - All sliders and buttons are multi-touch controlled. Please note the limitations below before you purchase/use this application. - The frequency control is not effective with the white noise oscillator. - The panning control is not effective with an iPhone internal speaker because it is monophonic. Use headphones or stereo speakers. - The audio output might be interrupted on a keyboard input, a view change and so on. - The accuracy of the audio output is not very high but it is reasonable.
Handy Harp II
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The "world's easiest-to-play" grand harp returns, even better than before. The new version of this audiovisual app assists harpists, composers, arrangers, orchestrators and students in gaining a deeper understanding of the grand harp's pedal functions. This application is an high-performance tool that assists in intuitively configuring harp pedals and creating sheet music. To achieve both a realistic experience and efficient workflow, this application includes the following features. ■ Recreation of Performing a Harp ・Intuitive touch control scheme on realistic pedals and sheet-music-style diagrams ・Faithful simulation of the harp's unique disc rotations ・A harp string section capable of playing beautiful glissandos ■ Strong Support for Music Creation ・Piano keys and music notation displayed with enharmonic notes ・Instant access to 336 pre-registered scales and 540 pre-registered chord names ・The ability to save up to 999 frequently used pedal settings ■ External Software / DAW Integration ・The ability to transmit MIDI data via Bluetooth MIDI, Network MIDI and wired MIDI to your DAW *When using Windows 11, usage of a separate Bluetooth MIDI device such as one from CME (WIDI Bud Pro, WIDI Uhost and WIDI Thru6 BT) is required. *When using a Mac, IDAM (Inter-Device Audio and MIDI) is also supported. ・The ability to transfer pedal diagrams to sheet music software such as Sibelius and Dorico ■ Other Features ・Support for octave notation, a welcome feature for harpists ・Function that clearly indicates pedal changes using circular marks
Screenshots
Verdict
The clearest difference is price: Oscillator at $0.99 against Handy Harp II's $39.99. Handy Harp II's advantage is update cadence (every 3 days vs every 30 months). On ads, in-app purchases, 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
Oscillator costs $0.99 and Handy Harp II $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Oscillator ships an update every 30 months, Handy Harp II every 3 days. The most recent releases landed on October 31, 2026 and October 30, 2026 respectively.
| Parameter | Oscillator | Handy Harp II |
|---|---|---|
| Price | $0.99 — better | $39.99 |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 79.6% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 30 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Vision Pro — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 1 MB | 123 MB |
| Age rating | +4 | 4+ |
| Developer | Masayuki Akamatsu | PROCYON STUDIO CO., LTD. |
In-app purchases
Oscillator
No in-app purchases
Handy Harp II
No in-app purchases
Questions
Is Oscillator free?
Is Handy Harp II free?
Do Oscillator or Handy Harp II have ads?
Which is updated more often, Oscillator or Handy Harp II?
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