# Star Walk 2 Pro vs Radiacode

The clearest difference is price: Radiacode at Free against Star Walk 2 Pro's $2.99. Radiacode also leads on in-app purchases (none vs 8). Star Walk 2 Pro's advantage is rating (4.7 vs 4.2) and ratings volume (67K vs 93). On update cadence, ads and device support there is nothing between them.

Radiacode is free to download; Star Walk 2 Pro costs $2.99 up front. Star Walk 2 Pro sells 8 one-off in-app purchases. Radiacode asks for nothing beyond the download.

Star Walk 2 Pro holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Star Walk 2 Pro has 67K ratings behind it against 93, so its average is the more settled of the two. Written reviews point the same way: 72% of Star Walk 2 Pro's written reviews are positive against 63% of Radiacode's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 28, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Star Walk 2 Pro | Radiacode |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.7 (67K ratings)](https://appshunter.io/ios/app/star-walk-2-pro-sky-map-live/id892279069/reviews)** | [4.2 (93 ratings)](https://appshunter.io/ios/app/radiacode/id6449358533/reviews) |
| Number of ratings | **67K** | 93 |
| Positive reviews | **72.3% of reviews** | 63.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#20** | — |
| Size | 357 MB | 49 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Vito Technology Inc.](https://appshunter.io/developer/289641503) | [Radiacode Ltd](https://appshunter.io/developer/1688704418) |

## What reviewers say

### Star Walk 2 Pro

[App page](https://appshunter.io/ios/app/star-walk-2-pro-sky-map-live/id892279069)

**Currently charting:** #20 Top Paid · Education (US App Store)

Explore the night sky with this augmented reality stargazing app. Point your device to identify thousands of stars, planets, constellations, and celestial events in real-time. Discover astronomical news and plan your observations with a comprehensive sky map.

**Highlights:** Real-time sky map, Augmented reality mode, 3D constellation models, Time machine feature, Deep sky object identification, Night mode for comfortable viewing, Visible Tonight section for events

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Constellations of Avengers | Free | one-time |
| Satellite Finder in Sky Above | $0.99 | one-time |
| Constellations 3D on Sky Map | $0.99 | one-time |
| Deep Space Objects Explorer | $0.99 | one-time |
| Explore Solar System Objects | $0.99 | one-time |
| Planets of the Solar System | $0.99 | one-time |
| Space Explorer: Kids Cartoons | $0.99 | one-time |
| Star Tracker AR: Full Version | $2.99 | one-time |

**What reviewers like**

- 🚀 Accurate sky mapping
- 🌟 Visually stunning graphics
- 🔍 Detailed information on celestial objects
- 🧑‍🎓 Educational and informative
- 🔔 Helpful notifications about sky events

**What reviewers complain about**

- 🔔 Too many notifications
- 💰 Expensive in-app purchases required for full features
- 🐛 Occasional glitches and bugs
- 🧭 Difficulty calibrating and aligning the app with the sky
- 🌍 Limited support for Southern Hemisphere users

**Reported bugs**

- App crashing on launch for some users
- Incorrect celestial object positioning in certain locations
- Notifications not working as expected

**Requested features**

- Customizable notification settings
- More detailed information on moons and satellites
- Option to disable animated constellation overlays
- Improved time/date controls for planning future sky viewing
- Support for equatorial mounts and telescopes


### Radiacode

[App page](https://appshunter.io/ios/app/radiacode/id6449358533)

This application enhances a radiation monitoring device, offering real-time data analysis, interactive dashboards, and advanced search functions. It visualizes isotopes, detects food contamination, and maps radiation levels geographically, providing detailed insights into radiation environments.

**Highlights:** Interactive real-time dashboard, Advanced ionizing radiation search, Alarms for radiation limits, Isotope visualization and spectrometry, Food contamination detection (Cesium-137), Radiological mapping on Google Maps

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Great app and device
- 👍 Easy to use and intuitive
- 🚀 Constantly being developed
- 👍 Fun to explore radiation
- 👍 Great value for hobbyist

**What reviewers complain about**

- 🐛 App keeps crashing
- 🐛 App crashes immediately
- 🐛 App won't open
- 🐛 App crashes constantly
- 🐛 Features flat out don't work

**Reported bugs**

- App keeps crashing
- App crashes immediately upon opening
- App won't open on iPhone 15 Pro
- App crashes constantly
- Features don't work

**Requested features**

- Scale data on map view
- Plot data along exponential curve
- See nuances in data less binary
- Clicks play through headphones
- Tone frequency proportional to energy


## Frequently asked questions

### Is Star Walk 2 Pro free?

Star Walk 2 Pro costs $2.99, and also offers in-app purchases.

### Is Radiacode free?

Radiacode is free to download, with no in-app purchases.

### Which has better reviews, Star Walk 2 Pro or Radiacode?

Star Walk 2 Pro is rated higher. Star Walk 2 Pro averages 4.7 out of 5 from 67K ratings, while Radiacode averages 4.2 from 93 ratings.

### Do Star Walk 2 Pro or Radiacode have ads?

Neither Star Walk 2 Pro nor Radiacode shows ads.

### Which is updated more often, Star Walk 2 Pro or Radiacode?

Star Walk 2 Pro ships an update every 2 months, and Radiacode every 2 months. Most recently, Star Walk 2 Pro was updated on September 28, 2026 and Radiacode on September 8, 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.*