Aurora (MIDI Controller) vs pitchGraf
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aurora (MIDI Controller)
Transform space weather data into musical expression with this live MIDI controller. Connect to your DAW and map real-time electromagnetic readings to create unique soundscapes and dynamic tracks.
- Live data streaming from observatories
- Flexible MIDI mapping
- Connects to DAWs like Ableton Live
- Cross-platform compatibility (iOS, macOS)
- Creates ambient and techno music
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Aurora is a live MIDI controller powered by real-time data from space weather observatories and satellites. Connect Aurora to your favorite DAW (like Ableton Live) and transform electromagnetic readings into musical expression. Features: • Live data streaming from NOAA and Dombås observatory • Flexible MIDI mapping for CC controls • Works across iPhone, iPad, and Mac Catalyst Whether you're crafting ambient soundscapes or building dynamic techno tracks, Aurora connects your music to the rhythms of the planet.
pitchGraf
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Concept: The app is a pitch monitoring tool and works as standalone or AUv3 plugin. It will analyze an incoming audio signal using FFT and display its spectral graph in real-time (unit: musical pitch not hertz). The user can watch and study in detail the pitch distribution of audio source. Usage: There are seven sliders. 1. Resolution: determines the analysis resolution. (higher resolution - worse time response) vice versa 2. Pan: works as panner, only if input source is stereo. 3. Magnify: magnifies the screen horizontally. 4. Slide: slides the screen horizontally. 5. Out: determines the audio output to be turned on or off (default: Off). 6. Input: input gain in dB. 7. Tuning: adjusts A4’s reference frequency in the range from 414hz to 467hz (default: 440). In the app the pitches are represented as follows: C -> C Cis -> 1 D -> D Es -> 3 E -> E F -> F Fis -> 6 G -> G As -> 8 A -> A B -> B H -> H Specifications: Compatible with the following sampling rate (from 44.1khz to 96khz)
Screenshots
Verdict
The clearest difference is update cadence: Aurora (MIDI Controller) at every 8 days against pitchGraf's every 7 months. On price, ads, in-app purchases 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
Aurora (MIDI Controller) costs $2.99 and pitchGraf $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Aurora (MIDI Controller) ships an update every 8 days, pitchGraf every 7 months. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.
| Parameter | Aurora (MIDI Controller) | pitchGraf |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 days — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Jason Snell | Satoshi Kajii |
In-app purchases
Aurora (MIDI Controller)
No in-app purchases
pitchGraf
No in-app purchases
Questions
Is Aurora (MIDI Controller) free?
Is pitchGraf free?
Do Aurora (MIDI Controller) or pitchGraf have ads?
Which is updated more often, Aurora (MIDI Controller) or pitchGraf?
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