Comparison

Day & Night Map vs 卫星云图

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

Head to head
About

Day & Night Map

Visualize the Earth's day and night cycles on an interactive world map. Select any date and time to see current illumination, or create animated GIFs of changing light patterns.

Highlights
  • Real-time day/night map
  • Selectable date and time
  • Animated GIF creation
  • Minute-by-minute updates
  • Global illumination visualization
Read full description

Day & Night Map shows you exactly which parts of Earth are in daylight and which are in darkness — right now, or at any date and time you choose. Watch the terminator move across the globe as hours and days pass. Explore sunrise, sunset, and twilight around the world. Perfect for travellers, astronomers, photographers, teachers, and anyone curious about time on our planet. KEY FEATURES • Live world map of day and night • Move through time with intuitive date and time controls • Jump back to the current moment with one tap • Pinch to zoom and pan across the map • Full-screen map view • Home Screen widgets in multiple sizes (including Extra Large on iPad) • Configurable widgets: sun, moon, moon phase, twilight, icon size, and more • Show sun and moon positions on the map • Display the current moon phase • Twilight zones: smooth shading or separate civil, nautical, and astronomical twilight • Equator and tropics lines • Show your current location on the map (optional) • Display time in local time or UTC • Light, dark, or system appearance • Share a map image by email, message, and more • Create animations over a chosen time range • Export animations as animated GIFs ANIMATIONS Pick a start and end date, set the step interval and speed, and watch the day/night line move over hours or days. Play the animation in the app or create an animated GIF to share. HOME SCREEN WIDGET Add the widget to your Home Screen and keep the current day/night map at a glance. Customize what is shown and how it looks directly when adding or editing the widget.

About

卫星云图

Features
Read full description

卫星云图支持查询天气中各种实时气象图,包括卫星云图、红外图、水汽云图、全球云图、可见光云图等,足不出户也能关注天上云朵的变化;支持全国各地雷达图,降雨动向尽在掌握之中;支持全球天气流场实况与趋势化查询,以上天视角查看天气;支持查询台风实况与预报,方便为出行做好准备。

Screenshots

Day & Night Map4 screens
卫星云图4 screens

Verdict

The call

The clearest difference is rating: Day & Night Map at 4.8 against 卫星云图's 4.2. Day & Night Map also leads on ads (none vs shown) and ratings volume (1.4K vs 183). 卫星云图's advantage is update cadence (monthly vs every 7 months) and iOS requirement (15.6 vs 17.6). On price, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Day & Night Map holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Day & Night Map has 1.4K ratings behind it against 183, so its average is the more settled of the two. Written reviews point the same way: 76% of Day & Night Map's written reviews are positive against 70% of 卫星云图's.

UpkeepUpdate frequency

Day & Night Map ships an update every 7 months, 卫星云图 monthly. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

Scorecard5 real differences · 5 level
Day & Night Map versus 卫星云图: the parameters behind the verdict, then further details
ParameterDay & Night Map卫星云图
PriceFreeFree
Rating4.8 (1.4K ratings) — better4.2 (183 ratings)
Positive reviews76.3% of reviews — better70.4% of reviews
Number of ratings1.4K — better183
Update frequencyEvery 7 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size48 MB83 MB
Age rating4+4+
DeveloperVolker Voecking Software Engineering健 陈

Customer experience

Day & Night Map

All ratings1,365 ratings
Positive94.9%
Neutral3.2%
Negative2.0%
Written reviews59 reviews
Positive76.3%
Neutral10.2%
Negative13.6%

卫星云图

Written reviews27 reviews
Positive70.4%
Neutral3.7%
Negative25.9%

Bugs and requests

Day & Night Map

Reported bugs

2 issues
  • Moon position not displayed on iPad
  • Daylight savings time not working properly

Requested features

4 requests
  • Option to keep noon at center and have map move
  • Show analemma and sun position on it
  • 24-hour clock setting for widget
  • Improve moon position display on iPad

卫星云图

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Day & Night Map

No in-app purchases

None

卫星云图

No in-app purchases

Questions

Is Day & Night Map free?
Day & Night Map is free to download, with no in-app purchases.
Is 卫星云图 free?
卫星云图 is free to download, with no in-app purchases.
Which has better reviews, Day & Night Map or 卫星云图?
Day & Night Map is rated higher. Day & Night Map averages 4.8 out of 5 from 1.4K ratings, while 卫星云图 averages 4.2 from 183 ratings.
Do Day & Night Map or 卫星云图 have ads?
卫星云图 shows ads; Day & Night Map does not.
Which is updated more often, Day & Night Map or 卫星云图?
Day & Night Map ships an update every 7 months, and 卫星云图 monthly. Most recently, Day & Night Map was updated on October 14, 2026 and 卫星云图 on October 16, 2026.

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