Comparison

Oscillator vs Handy Harp II

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

Head to head
About

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.

Highlights
  • Four waveforms (sine, square, saw, white noise)
  • Exponential frequency control
  • Numeric frequency input
  • Panning control
  • Amplitude control
  • Multi-touch controls
Features
Read full description

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.

About

Handy Harp II

Features
Read full description

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

Oscillator2 screens
Handy Harp II4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Oscillator versus Handy Harp II: the parameters behind the verdict, then further details
ParameterOscillatorHandy Harp II
Price$0.99 — better$39.99
Rating3.7 (3 ratings) — better—
Positive reviews79.6% of reviews—
Number of ratings3 — better—
Update frequencyEvery 30 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Vision Pro — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size1 MB123 MB
Age rating+44+
DeveloperMasayuki AkamatsuPROCYON STUDIO CO., LTD.

In-app purchases

None

Oscillator

No in-app purchases

None

Handy Harp II

No in-app purchases

Questions

Is Oscillator free?
Oscillator costs $0.99, with no in-app purchases.
Is Handy Harp II free?
Handy Harp II costs $39.99, with no in-app purchases.
Do Oscillator or Handy Harp II have ads?
Neither Oscillator nor Handy Harp II shows ads.
Which is updated more often, Oscillator or Handy Harp II?
Oscillator ships an update every 30 months, and Handy Harp II every 3 days. Most recently, Oscillator was updated on October 31, 2026 and Handy Harp II on October 30, 2026.

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