Comparison

Solar Walk 2 vs Nautical Signal Code Flags

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

Head to head
About

Solar Walk 2

Explore our Solar System with detailed 3D models of planets, moons, and spacecraft. Discover celestial events, track space missions, and travel through time and space with an interactive encyclopedia. Stay updated with the latest astronomy news.

Highlights
  • 3D Solar System model
  • Interactive space encyclopedia
  • Astronomy calendar
  • Time and space travel
  • Space mission tracking
  • 360-degree panoramic images
Features
Read full description

Solar Walk 2 is a powerful tool for exploring our Solar system. The app takes you on a fascinating trip through the vast realms of space and introduces an amazing Solar system model with beautiful 3D representations of the Sun, the Moon, planets, satellites, planetary atmospheres and other space objects in the smallest details. Being a new way to view the Solar system and explore the most outstanding space missions, Solar Walk 2 stands out among other astronomy applications with its stunning visuals, graphics and attractive interface. *** Best of 2016 *** "A must-have for solar system enthusiasts." - Star Mapping "The application is entertaining and useful as an astronomy educational tool." - MyMac "A great way for users of any age to learn more about astronomy." - AppAdvice "A peerless educational tool in astronomy boasting dazzling 3D visuals of solar flares, planetary atmospheres, auroras, and asteroid belts to deliver a unique space experience with unprecedented authenticity." - Appolicious Main features: ● 3D model of our Solar system ● Interactive space encyclopedia ● Astronomy calendar with various celestial events ● Travel in time and space ● Space missions and the history of space exploration ● Fantastic 3D models of spacecraft ● 360 degree images - panoramic photos of our Solar system ● "What's new" section with the latest news from the world of space and astronomy ► With Solar Walk 2 you will be able to see highly-elaborated and realistic 3D models of spacecraft, satellites and interplanetary stations in real action. You will see where they started, track the real trajectory of their flight path, watch gravitational maneuvers, view real pictures made during the missions. ► Enjoy observing fascinating 3D representations of Solar system objects and various deep space objects. The list is growing! We’re eager to add new dwarf planets, missions and more facts about space! All celestial bodies are represented in their correct positions in real time and provided with the detailed information. ► Astronomy calendar of Solar Walk 2 includes various astronomical events and events related to space exploration (the launching of satellites, the first landing on the moon, etc). Choose any date and time and travel in time observing the most interesting celestial events of different periods. ► Wonderful panoramic photos of space objects. Fascinated by the beauty of the Solar system, want to capture celestial objects in their glory? You can select any object, make a panoramic photo and share it on Facebook. Share the beauty of our universe with your friends. ► Be aware of the latest news from the world of space and astronomy with Solar Walk 2. The app's "What's new" section will inform you about the most outstanding celestial events in time. You won't miss the latest astronomy news. Solar Walk 2 is an excellent educational tool perfect for both adults and children who are interested in astronomy and space exploration. How is it different from Solar Walk? Solar Walk 2 has all-new graphics, interface and updated planetary textures. Your exploration of the Solar system in Solar Walk 2 is guided by a carefully handpicked calendar, a collection of simulations of celestial events with stunning visuals. You can still fly around the Solar system and explore it on your own, like in Solar Walk 1, but now you have a comprehensive tour guide at your disposal. The app contains In-App Purchases (Premium access). Premium access allows you to enjoy space missions, satellites, celestial events, asteroids, dwarf planets and comets. Unlock Premium access to the history of space exploration and man-made spacecraft. Travel with Voyager 1, see how gravity assists helped Cassini get to the outer edges of the Solar system, and explore Hubble as if you were right next to it. Note: Solar Walk users with the app installed on device get unlimited access at a discount. Start exploring the Universe with Solar Walk 2!

About

Nautical Signal Code Flags

Features
Read full description

Use this beautifully designed app to introduce the use of Nautical Signal Code Flags to send messages. The app presents all the letters of the English alphabet as well as the numbers from zero to ten. The Nautical Signal Code Flags Toolkit is an interactive learning tool for introducing the way that flags are used on ships and boats to send information. In the exploration mode users can press any key and see the flag that is associated with selected letter. Using the keyboard students can see how to spell a word using signal flags. Switch to the number mode to learn how to signal numbers from zero to ten. Press any key in this mode and see how to signal the number. Students who are learning how to use nautifcal signal code flags will find the quiz feature helpful. After pressing the question mark to start the quiz, a word is randomly selected from a specific word list. The way to spell the word using signal flags is shown. The object is for the student to recognize a flag for a letter in a word and to type the corresponding letter on the keyboard. Speech effects are provided so that when a letter is pressed on the keyboard it is pronounced aloud. This feature can optionally be turned on or off. Nautical flags are a system of colorful flags used primarily for communication at sea. Each flag has a specific meaning, often representing letters of the alphabet, numbers, or specific messages like distress signals or navigational instructions. These flags are crucial for ensuring safe and effective communication between vessels, especially when radio silence is required or in situations where radio communication is not possible. The International Code of Signals, established in the mid-19th century, standardizes the meanings of these flags, allowing for consistent and clear exchanges of information among ships worldwide.

Screenshots

Solar Walk 24 screens

Verdict

The call

The clearest difference is in-app purchases: Nautical Signal Code Flags at none against Solar Walk 2's 7. Nautical Signal Code Flags also leads on price ($1.99 vs $2.99). Solar Walk 2's advantage is update cadence (every 2 months vs every 30 months) and device support (4 vs 2). On ads and iOS requirement 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

Solar Walk 2 costs $2.99 and Nautical Signal Code Flags $1.99 up front. Solar Walk 2 sells 7 one-off in-app purchases. Nautical Signal Code Flags asks for nothing beyond the download.

UpkeepUpdate frequency

Solar Walk 2 ships an update every 2 months, Nautical Signal Code Flags every 30 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
Solar Walk 2 versus Nautical Signal Code Flags: the parameters behind the verdict, then further details
ParameterSolar Walk 2Nautical Signal Code Flags
Price$2.99$1.99 — better
Rating4.7 (7.3K ratings) — better—
Positive reviews74.9% of reviews—
Number of ratings7.3K — better—
Update frequencyEvery 2 months — betterEvery 30 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple TV — betteriPad, Apple TV
Requires iOS12.0 — better13.2
Further details — not scored
Size803 MB10 MB
Age rating4+4+
DeveloperVito Technology Inc.Ventura Educational Systems

Bugs and requests

Solar Walk 2

Reported bugs

2 issues
  • Crashes on Apple Watch
  • Difficulty applying real-time settings

Requested features

5 requests
  • Add more minor moons and dwarf planets
  • Improve zoom functionality to allow for smoother transitions
  • Integrate more up-to-date information on space missions and satellites
  • Add support for exoplanets, black holes, and the Milky Way galaxy
  • Implement a free-flight mode to explore the solar system freely

Nautical Signal Code Flags

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Solar Walk 2

One-time7
  • Premium Access for a month$0.99
  • Premium Access for 3 months$1.99
  • Premium Access for 6 months$2.99
Show 4 more
  • Premium Access: Special Offer$2.99
  • Access for Solar Walk users$4.99
  • Premium Access for a year$5.99
  • Space Exploration Encyclopedia$8.99
None

Nautical Signal Code Flags

No in-app purchases

Questions

Is Solar Walk 2 free?
Solar Walk 2 costs $2.99, and also offers in-app purchases.
Is Nautical Signal Code Flags free?
Nautical Signal Code Flags costs $1.99, with no in-app purchases.
Do Solar Walk 2 or Nautical Signal Code Flags have ads?
Neither Solar Walk 2 nor Nautical Signal Code Flags shows ads.
Which is updated more often, Solar Walk 2 or Nautical Signal Code Flags?
Solar Walk 2 ships an update every 2 months, and Nautical Signal Code Flags every 30 months. Most recently, Solar Walk 2 was updated on October 22, 2026 and Nautical Signal Code Flags on October 16, 2026.

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