RFC View vs The Sky by Redshift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RFC View
Access and read RFC documents in various formats, including text, HTML, and PDF. Features offline reading for text files, document searching, and the ability to save favorites. Stay updated with the latest documents without needing app updates.
- List all RFC documents
- Search by title, ID, author, or keywords
- Read in text, HTML, or PDF formats
- Offline reading for text documents
- Save favorite documents
- View latest documents
Read full descriptionHide full description
A reader for RFC documents. Features for RFC View are: 1 - List all RFC documents 2 - Search with title, document id, authors or keywords in all RFC documents 3 - Read all documents with text, HTML or PDF formats 4 - Offline Mode: You can read all documents in text format without internet 5 - Keep your favorite documents 6 - Get latest docs: You can view all new documents without waiting for the new version of this app
The Sky by Redshift
This app is a powerful yet easy-to-use planetarium that acts as your daily astronomy companion. Simply point your device at the sky to identify planets, stars, and constellations, and explore celestial objects with detailed views and informative explanations.
- Identify stars, planets, and constellations
- Track celestial object paths
- Simulate astronomical events
- Explore deep-space objects
- Learn about astronomical phenomena
- Eclipse timetable and simulation
Read full descriptionHide full description
Developed in collaboration with THAMES & KOSMOS: The Sky – Astronomy, a powerful and easy-to-use planetarium – your daily companion for observing the sky! Which star is this? Where do I find Mars? Is it the ISS up there? Hold your smartphone or tablet up to the sky and see which planets, stars, or constellations are above you. Where is Jupiter and how can I find my zodiac in the sky? The Sky shows you the position of celestial objects in the sky with just a few taps. Get close-up views not only of near-Earth planets and moons, but also experience deep-space objects in stunning detail. What do the Saturnian moons look like? The Sky takes you on a breath-taking journey into the infinite realms of outer space. Fly to planets, stars, and other celestial bodies and let the app tell you about our Universe. What is a solar eclipse and what does an opposition of Mars mean? The Sky answers your questions with stunning animations and insightful explanations. Thus, even beginners will be able to understand the mechanics and to visually imagine the most important celestial events. No matter if you are a beginner or amateur astronomer, child or adult - with the intuitive app The Sky, everyone will immediately understand the sky - without much prior knowledge and long training. Shine with your knowledge of the sky, around the campfire or on night walks: with The Sky, astronomy will always be a pleasure! Discover the joy of watching the skies and the age-old fascination with space that has inspired mankind for millennia – and become part of the worldwide Redshift community. The app contains more than 9,000 stars, 88 constellations, hundreds of moons, asteroids and comets, as well as 200 spectacular deep-sky objects - all with accurate position calculation and motion tracking in real time. At a glance: • Recognize the stars and constellations of the night sky • Identify planets, moons, comets, and satellites and track their paths • Take breath-taking flights through space to distant stars and colorful nebulae • See what’s going on in the sky tonight with a direct simulation of the events • Learn to understand astronomical phenomena and events New in version 2.0: • Eclipse Timetable • Orbits of celestial objects • Expanded database with 6500 cities worldwide, including 2500 cities in the United States Were you able to witness the total solar eclipse in North America on April 8, 2024? This app contains everything you need know about this magical event: • Detailed description of the path of the eclipse in Mexico, the USA and Canada • Information on how to safely observe a solar eclipse • Eclipse timetable with the exact times for your location or best viewing position • Direct simulation of the eclipse in exciting animations • Sky map with the planets and stars that could be seen during the totality phase • Illustrated explanations of how a solar eclipse occurs • Everything about solar eclipses: Explanations and facts, illustrated with pictures and videos • Location selection via map, location search or GPS or selection of the "best position" for observation Your thirst for knowledge is not yet satisfied? With the premium subscription, you can activate many additional spaceflights and orbits as well as additional knowledge sections of "Discover astronomy". Here you can find more spectacular images and videos of the total solar eclipse on April 8, 2024. There is also an eclipse calendar with all solar and lunar eclipses between 1900 and 2100 and a guided tour of the U.S. MARS 2020 mission. This tour includes images and animations of the landing on Mars, as well as of the environment at the landing site of the Mars rover Perseverance. ***** Questions or suggestions for improvements: Mail to support@redshiftsky.com We are looking forward to your feedback! For more information on news and updates: redshiftsky.com www.redshiftsky.com/terms-of-use-the-sky/ *****
Screenshots
Verdict
The clearest difference is rating: The Sky by Redshift at 4.7 against RFC View's 4.0. The Sky by Redshift also leads on update cadence (every 2 months vs every 13 months) and ratings volume (811 vs 1). RFC View's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 69%). On price, ads, device support 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
Both are free to download. The Sky by Redshift sells 2 in-app purchases, starting at $0.99 per month. RFC View asks for nothing beyond the download.
The Sky by Redshift holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: The Sky by Redshift has 811 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of RFC View's written reviews are positive against 69% of The Sky by Redshift's, so the app with the better star average is not the one people write more warmly about.
RFC View ships an update every 13 months, The Sky by Redshift every 2 months. The most recent releases landed on June 25, 2026 and September 21, 2026 respectively.
| Parameter | RFC View | The Sky by Redshift |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.7 (811 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 69.2% of reviews |
| Number of ratings | 1 | 811 — better |
| Update frequency | Every 13 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 131 MB | 472 MB |
| Age rating | 4+ | 4+ |
| Developer | Jerseykit LTD | United Soft Media Verlag GmbH |
Customer experience
RFC View
The Sky by Redshift
Bugs and requests
RFC View
Not enough reviews yet to summarise bugs or requests.
The Sky by Redshift
Reported bugs
1 issue- Unauthorized access to private systems
Requested features
3 requests- Red light option to preserve night vision
- Smaller, less obtrusive pointer
- More features and accurate information
In-app purchases
RFC View
No in-app purchases
The Sky by Redshift
- The Sky Premium 1 Month$0.991 Month
- The Sky Premium 1 Year$3.991 Year









