Galaxy Map vs Rewise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Galaxy Map
Explore the Milky Way and Andromeda galaxies in an interactive 3D map. Discover nebulae, supernovae, and planets, with stunning visuals based on NASA data. Ideal for education and space enthusiasts.
- Interactive 3D galaxy map
- Explore nebulae and supernovae
- Fly through planetary atmospheres
- Land on planets
- Based on NASA data
- Available in 100+ languages
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The galaxy map is an interactive map of the Milky Way galaxy, Andromeda and their satellite galaxies. Explore the Orion Arm's nebulae and supernovae from the comfort of your spaceship. Fly through the atmosphere of Mars and many other planets and you can even land on them. Discover the galaxy in a stunning three dimensional map based on NASA's artistic impression of the Milky Way galactic structure. Photos are taken by NASA spacecraft and ground based telescopes like Hubble Space Telescope, Chandra X-Ray, Herschel Space Observatory and the Spitzer Space Telescope. This interactive 3D map is excellent for teachers to use for instruction, and it is a great astronomy resource for students to explore the Milky Way galaxy and space as they learn more about the universe we live in. Available in over 100 languages! You can also From the outskirts of the galaxy, in the Norma-Outer spiral arm to the galactic center's supermassive black hole Sagittarius A*, discover a galaxy full of amazing facts. Notable structures included: the Pillars of Creation, Helix Nebula, the Engraved Hourglass Nebula, the Pleiades, the Orion Arm (where the solar system and the Earth are located) with its Orion belt. Check out neighboring dwarf galaxies such as Sagittarius and the Canis Major Overdensity, stellar streams as well as internal galactic components such as a variety of nebulae, star clusters or supernovae. Explore space and get a little closer to our wonderful universe with this awesome astronomy app! The Galaxy Map requires internet access to retrieve information from the wiki.
Rewise
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Remember it right before you forget it. Rewise turns the most current spaced-repetition science into the fastest way to study on iPhone. Medicine, exams, languages. It ends "there is too much to memorise" with actual science. Why do you forget it after all that work? Because the interval between reviews does not match your forgetting curve. The FSRS scheduler predicts the moment you are about to forget and asks you then. Set your target retention anywhere from 70% to 97%. Fewer reviews, deeper retention. How much longer is today going to take? Every answer button tells you when the card comes back — tomorrow, in 3 days, in 10 days — so you can see the end of it. When today runs out, "Study all now" adds more without disturbing the schedule. Isn't making the cards the part that kills the habit? Point it at a photo, a PDF or pasted text and it drafts the questions and answers for you, entirely on the device. Flashcard packages (.apkg / .colpkg, exported with legacy support enabled) and CSV files import directly. Everything is processed on the device and we run no servers of our own. Your cards leave the phone only if you turn on iCloud sync yourself. Is there only one way to memorise something? Basic cards, cloze deletion, image occlusion that lifts one mask at a time, and multiple choice. Red sheet mode (free) writes the answer in red under a see-through red sheet; slide it down to check yourself. Read-aloud uses the voices already on your device, so it speaks more than 30 languages. Do I need a computer? No. Building cards, masking images, importing files — all of it finishes on the device. Turn on iCloud sync (Pro) and your iPhone and iPad stay joined, with no sync button to press. But can you actually keep it up? Study reminders, and widgets for the Home and Lock Screen. Six months of heatmap, a forecast of the workload ahead, and your real measured retention: progress you can actually see. The haptics and sounds feel good, and they can be switched off. Won't it hurt my eyes at night? There is a paper-textured screen and a warm dark mode for late sessions. Pick your app icon too. What does it cost? Free, for up to 4 decks and 300 cards. The spaced repetition itself is never rationed. Rewise Pro (subscription) lifts the card limit and opens all-device sync, image occlusion, multiple-choice, typed-answer and audio cards, read-aloud, unlimited drafted cards, six-month statistics, alternate app icons, imports, and full JSON and printable PDF export. Exporting your cards as CSV is free on every plan. Yearly is the best value and comes with a 7-day free trial. A lifetime unlock is also available for anyone who prefers not to subscribe. What you learn today — for exam day, and long after. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://revot.jp/apps/rewise/privacy.html
Screenshots
Verdict
The clearest difference is ads: Rewise at none against Galaxy Map's shown. Galaxy Map's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, 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
Both are free to download. Galaxy Map sells 13 one-off in-app purchases and Rewise sells 4 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.
Galaxy Map ships an update monthly, Rewise every 4 weeks. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.
| Parameter | Galaxy Map | Rewise |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (610 ratings) — better | — |
| Positive reviews | 79.8% of reviews | — |
| Number of ratings | 610 — better | — |
| Update frequency | Monthly | Every 4 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 632 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrei Nistorescu | REVOT, K.K. |
Bugs and requests
Galaxy Map
Reported bugs
9 issues- App crashes on startup
- Explore button shows nothing
- Pinch-to-zoom doesn't work
- App won't load on iPad
- Text displays as boxes in language settings
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- Mars moon orbital speed incorrect
- App kicks users out during exploration
- Loading issues and incomplete functionality
- Inconsistent performance across platforms
Requested features
18 requests- Search button to find galaxies and objects
- More diverse and realistic black hole designs
- AR feature to identify stars/planets in real sky
- More free content and objects
- Exoplanet additions (TRAPPIST-1e, J1407B)
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- Ability to click on stars within galaxies for details
- Generated planets around stars
- Sandbox/creation mode for user-generated content
- Animation for Milky Way and Andromeda
- More galaxy variety in the app
- Coordinates filter for objects
- Space-Engine style gameplay
- Flying through galaxies feature
- More female character customization options
- VIP version option
- Brown dwarfs addition
- Photosphere viewing mode
- More detailed star information
Rewise
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Galaxy Map
- Buy ship - Alien Destroyer$0.99
- Buy ship - Alien fighter$0.99
- Remove ads$1.99
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- Buy ship - Alien Destroyer$1.99
- Buy ship - Alien fighter$1.99
- 3D Visualization Pack$1.99
- Buy ship - Dragon Frigate$1.99
- Essentials bundle - SALE$2.99
- Remove ads$3.99
- 3D Visualization Pack$3.99
- Ultimate bundle - SALE$4.99
- Essentials bundle$4.99
- Ultimate bundle$8.99
Rewise
- Rewise Pro Weekly$1.997 Days
- Rewise Pro Monthly$5.991 Month
- Rewise Pro Yearly7 Days trial$29.991 Year
- Rewise Pro Lifetime$69.99









