Tempera vs Noeul ON
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tempera
Experience weather as a visual ritual with 441 global cities rendered as miniature 3D scenes. See local time, weather conditions, and day/night cycles dynamically change. Offers hourly and multi-day forecasts, home screen widgets, and fast city switching for a personal weather experience.
- 441 global city scenes
- Dynamic weather overlay
- Day and night artwork
- Home screen widgets
- Hourly and multi-day forecasts
- Fast city switching
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Tempera turns weather into a calm, visual ritual. Explore 441 global cities as miniature 3D scenes that shift with local time, weather, and day or night. Open the app to see the city you care about, then swipe through the rest of your saved places. Why people use Tempera: - 441 city scenes with dedicated day and night artwork - Weather layered directly onto each city scene - Small, medium, and large Home Screen widgets - Local time, current conditions, feels-like temperature, humidity, sunrise, and sunset - Hourly detail and multi-day forecast - Fast city switching and shareable weather snapshots - English, Español, Deutsch, Français, 简体中文, 日本語, and 한국어 Tempera is built for people who watch the weather with emotion, not just utility. Keep a calm set of cities, follow places you love, and see each one change through the day. Perfect for travelers, remote teams, families across time zones, and anyone who wants weather that feels personal.
Noeul ON
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Will tonight's sunset be worth it? Noeul ON reads cloud cover, humidity, air quality and the western sky path to score tonight's sunset from 0 to 100 — and pings you an hour before golden hour when it looks good. Then, the next day, it tells you whether that forecast held. ■ A sunset app that shows its work After the sun goes down, it asks once: "Compared with the forecast, how was tonight?" Tap one of Better · About right · Not as good, and you're done. Didn't see the sky? Tap "I missed it." Open the app the next day and a result card is waiting — "Yesterday's forecast held · forecast 82, actual 78." The actual figure comes from that day's observations at that spot. When the forecast missed, it names which of the five factors diverged most. ■ A sunset score with reasons See the score and its grade at a glance (Legendary to Low odds). Five factors — cloud canvas, cloud type, humidity, air clarity and the light path — explain exactly why tonight scored what it did. ■ Never miss the timing A live timeline shows golden hour, sunset, and the peak-colour window, with a countdown to the moment the sky turns. ■ An alert when it's time to go out On days that clear your own threshold, you get a notification one hour before golden hour. It also shows how often that threshold will actually fire — "about once a week" — so you aren't guessing where to set it. ■ 673 sunset spots across Korea From the Han River and Gwangalli Beach to Kkotji, Ganwolam, Suncheonman Bay and Jeju's oreum — mapped and described by the terrain they sit on: whether the west is open water or a ridge, and how far and how high that ridge stands. ■ The sky you saw, and that day's score Keep a photo of the sky you watched and it comes back with the next day's result card. That photo stays on your device and is never uploaded. Share one to the gallery only if you want to. Posted photos carry the sunset score of that day. ■ Available in English, 한국어 and 日本語 Weather data by Open-Meteo. Forecasts are estimates based on weather models and may differ from the actual sky.
Screenshots
Verdict
The clearest difference is update cadence: Noeul ON at every 2 days against Tempera's every 3 weeks. Noeul ON also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases 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.
Tempera ships an update every 3 weeks, Noeul ON every 2 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.
| Parameter | Tempera | Noeul ON |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 142 MB | 44 MB |
| Age rating | 4+ | 12+ |
| Developer | Xinyu Hong | Woosoo Kim |
In-app purchases
Tempera
No in-app purchases
Noeul ON
No in-app purchases









