Comparison

Planetary Weather vs Encyclopedia

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

Head to head
About

Planetary Weather

Explore real-time weather conditions on planets, moons, and the Sun in a stunning 3D solar system model. Get daily temperature and wind speed forecasts with accurate data.

Highlights
  • Daily temperature and wind speed forecasts
  • Data for planets, moons, and the Sun
  • Accurate estimates from NASA/NOAA
  • Stunning 3D solar system renders
  • Metric or Imperial units
  • High-quality graphics
Features
Read full description

Ever wanted to know today's temperature on Mars, or the current wind speed on Saturn? Now you can! Check out today's average temperature and wind speed on every planet in the solar system, as well as the most important moons and the Sun, all while viewing the solar system in stunning 3D the likes of which you have never seen before on your phone! Features Include: • Daily temperature and wind speed forecasts for all the planets, important moons, the Sun, and of course, Pluto. • Accurate estimates of daily planetary weather conditions based on NASA and NOAA data. • Correct Time of day for earth and lunar phase for our moon • Beautiful 3D renders of the solar system for you to explore • Metric or Imperial units • Among the highest quality graphics you've ever seen in a solar system application.

About

Encyclopedia

Explore the solar system with extensive articles and high-definition images. This app offers comprehensive information, engaging content, and a user-friendly interface, making it suitable for both children and adults interested in space.

Highlights
  • Thousands of articles and HD photos
  • Comprehensive solar system information
  • Engaging and easy-to-understand content
  • Offline availability
  • Badge collection for reading
  • Intuitive user interface
Features
Read full description

Travel through our celestial neighborhood in 386 illustrated articles on the Sun, planets, moons, smaller bodies and the history of solar-system exploration. START WITH FIVE FREE ARTICLES New readers can choose any five different articles. Your chosen articles stay unlocked, and revisiting them never uses another choice. Existing readers keep previously granted access. MAKE DISCOVERIES YOUR OWN • Search article titles and full text • Follow links between related topics • Save articles and return to your reading position • Continue recent reading and track your progress • Explore connections through the timeline and graph • Find article sources and image credits inside the app CHOOSE YOUR ACCESS Own the full encyclopedia with a one-time purchase for complete offline reading. Or choose monthly or annual Premium for the full encyclopedia plus AI chat grounded in this subject's articles. Eligible new Premium subscribers receive a three-day introductory trial. Subscriptions renew automatically unless canceled through your App Store account. Current local prices and terms appear before purchase. Restore Purchases recovers eligible previous purchases. Earlier full-version ownership includes encyclopedia and offline access; Premium AI requires a subscription. Internet access is required for AI chat and purchases. AI answers may contain errors; consult the linked sources. Article text is derived from Wikipedia. Images come from appropriately licensed Wikimedia Commons and other open sources. Source links, licenses and credits are available in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Planetary Weather4 screens
Encyclopedia4 screens

Verdict

The call

The clearest difference is update cadence: Encyclopedia at monthly against Planetary Weather's every 7 months. Planetary Weather's advantage is review sentiment (100% vs 83%) and rating (4.0 vs 3.8). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Planetary Weather sells 2 one-off in-app purchases and Encyclopedia sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Planetary Weather holds the better App Store score, 4.0 against 3.8. Both are backed by a comparable volume of ratings — 11 and 14 respectively. Written reviews point the same way: 100% of Planetary Weather's written reviews are positive against 83% of Encyclopedia's.

UpkeepUpdate frequency

Planetary Weather ships an update every 7 months, Encyclopedia monthly. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

Scorecard4 real differences · 6 level
Planetary Weather versus Encyclopedia: the parameters behind the verdict, then further details
ParameterPlanetary WeatherEncyclopedia
PriceFreeFree
Rating4.0 (11 ratings) — better3.8 (14 ratings)
Positive reviews100.0% of reviews — better83.3% of reviews
Number of ratings1114 — better
Update frequencyEvery 7 monthsMonthly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better15.0
Further details — not scored
Size118 MB322 MB
Age rating4+4+
DeveloperTechnospiritsGood Spider, LLC

Customer experience

Planetary Weather

All ratings11 ratings
Positive72.7%
Neutral9.1%
Negative18.2%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Encyclopedia

All ratings14 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

2 purchases

Planetary Weather

One-time2
  • Gas Giants$0.99
  • Moon Pack$1.99
1 purchases

Encyclopedia

One-time1
  • Full Version$2.99

Questions

Is Planetary Weather free?
Planetary Weather is free to download, with in-app purchases available.
Is Encyclopedia free?
Encyclopedia is free to download, with in-app purchases available.
Which has better reviews, Planetary Weather or Encyclopedia?
Planetary Weather is rated higher. Planetary Weather averages 4.0 out of 5 from 11 ratings, while Encyclopedia averages 3.8 from 14 ratings.
Do Planetary Weather or Encyclopedia have ads?
Neither Planetary Weather nor Encyclopedia shows ads.
Which is updated more often, Planetary Weather or Encyclopedia?
Planetary Weather ships an update every 7 months, and Encyclopedia monthly. Most recently, Planetary Weather was updated on October 12, 2026 and Encyclopedia on October 4, 2026.

Other comparisons