# Solar Walk 2 vs Nautical Signal Code Flags

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.

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.

Solar Walk 2 ships an update every 2 months, Nautical Signal Code Flags every 30 months. The most recent releases landed on October 23, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Solar Walk 2 | Nautical Signal Code Flags |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | **[4.7 (7.3K ratings)](https://appshunter.io/ios/app/solar-walk-2-view-planets-3d/id1031155880/reviews)** | — |
| Number of ratings | **7.3K** | — |
| Positive reviews | 74.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 30 months |
| Monetization | Free with in-app purchases | — |
| Size | 803 MB | 10 MB |
| Requires iOS | **12.0** | 13.2 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Vito Technology Inc.](https://appshunter.io/developer/289641503) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### Solar Walk 2

[App page](https://appshunter.io/ios/app/solar-walk-2-view-planets-3d/id1031155880)

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:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access for a month | $0.99 | one-time |
| Premium Access for 3 months | $1.99 | one-time |
| Premium Access for 6 months | $2.99 | one-time |
| Premium Access: Special Offer | $2.99 | one-time |
| Access for Solar Walk users | $4.99 | one-time |
| Premium Access for a year | $5.99 | one-time |
| Space Exploration Encyclopedia | $8.99 | one-time |

**What reviewers like**

- 🚀 Immersive experience
- 🌟 Stunning graphics
- 💡 Detailed information on celestial bodies
- 👍 Educational and informative
- ⭐ Visually stunning

**What reviewers complain about**

- 🐛 Inconsistent zooming behavior
- 💰 Locked content behind paywall
- 🔍 Difficult to navigate
- 🔍 Outdated information on missions and satellites

**Reported bugs**

- Crashes on Apple Watch
- Difficulty applying real-time settings

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/nautical-signal-code-flags/id1598190434)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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 23, 2026 and Nautical Signal Code Flags on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*