SunGraph vs Jazz Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SunGraph
Calculate sunrise and sunset times for any location globally and any day of the year. Explore earliest/latest times, the equation of time, and sun inclination. Visualize the sun's position on Earth.
- Sunrise and sunset times worldwide
- Earliest and latest sunrise/sunset
- Equation of time display
- Sun inclination at transit
- World view of sun's position
- User location database
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SunGraph is a sunrise and sunset calculator showing sunrise and sunset times for anywhere in the world and for any day of the year. For any latitude the earliest and latest sunrise and sunset times will be displayed. The analemma screen displays the equation of time along with the inclination of the sun above the horizon at transit. A world view shows the location of the sun on the Earth for the current time, or any day of the year. A data base can store user locations.
Jazz Clock
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This analog clock can be viewed with traditional numbers, a chromatic scale, or a circle of fifths. The clock page has sliders for control of sharps and flats, major and minor scales, and bass and treble clefs. If you click on a clock note it changes the key. If you click in the center of the clock the hour hand determines the key. It doesn't spy on your actions, track your location, or sell you to advertisers. It's just a simple clock.
Screenshots
Verdict
The clearest difference is update cadence: Jazz Clock at every 9 days against SunGraph's every 4 months. SunGraph's advantage is iOS requirement (13.0 vs 15.1). 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.
SunGraph ships an update every 4 months, Jazz Clock every 9 days. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.
| Parameter | SunGraph | Jazz Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (14 ratings) — better | — |
| Positive reviews | 56.8% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 4 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 11 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Tremont Air, LLC | Timothy Smith |
In-app purchases
SunGraph
No in-app purchases
Jazz Clock
No in-app purchases
