Arrebol vs PartyKeys Hub
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arrebol
Plan your perfect outdoor photos with precise sunrise, sunset, and celestial event data. Visualize light, shadows, and constellations in augmented reality. Get alerts for golden hours and celestial phenomena.
- Sunrise/sunset and golden hour alerts
- Celestial event tracking (eclipses, meteor showers)
- AR sky path and constellation finder
- Shadow direction and length visualization
- Earth's light and city light mapping
- Multi-location support
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• Sunrise, sunset, golden and blue hour, with a countdown and alerts • Chance of a burning sky, 24-hour cloud and a 10-day outlook • Shot plans: pick your spot and your subject, and find when the sun or moon lines up • Earth’s Light: turn the globe to see day, twilight and city lights everywhere right now • Shadow: how long it falls right now, and which way • Constellations in AR: hold up your phone to find all 88 • Sun & moon map and AR sky path • Eclipses, meteor showers, aurora • Multiple saved places, each in its local time • Widgets and Dynamic Island countdown Sun and moon positions, rises and sets are checked against NASA JPL ephemerides. Weather: Apple Weather. Space weather: NOAA SWPC. Eclipse predictions: Fred Espenak, NASA GSFC. Earth imagery: NASA. Terrain: Copernicus DEM, ESA WorldCover.
PartyKeys Hub
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PartyKeys Hub is the official companion app for the PartyKeys family of smart instruments. It keeps your speaker, synthesizer, and smart keyboard at their best — updating firmware and refreshing instrument sounds with just a few taps. KEY FEATURES • Firmware Updates: Detect and download the latest firmware with one tap, then flash it over a USB cable — stable, reliable OTA updates with the newest features and performance improvements. • Sound Pack Manager: Browse, check, and update the instrument sound packs installed on your synthesizer to keep your sound library fresh. • Device Status at a Glance: Connected devices are recognized automatically, showing the current firmware version and the install/update status of every sound pack in real time.
Screenshots
Verdict
The clearest difference is update cadence: Arrebol at every 3 days against PartyKeys Hub's weekly. PartyKeys Hub's advantage is iOS requirement (15.0 vs 18.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Arrebol ships an update every 3 days, PartyKeys Hub weekly. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.
| Parameter | Arrebol | PartyKeys Hub |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 52 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Jiawen Sun | Beijing Visual & Sense Technology Co., Ltd. |
In-app purchases
Arrebol
No in-app purchases
PartyKeys Hub
No in-app purchases









