# SpecimenPro vs Planetary Atlas

The clearest difference is monetization model: SpecimenPro at free against Planetary Atlas's free with in-app purchases. Planetary Atlas's advantage is iOS requirement (15.0 vs 18.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. SpecimenPro sells 1 one-off in-app purchase and Planetary Atlas sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for SpecimenPro against 5.0 for Planetary Atlas. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | SpecimenPro | Planetary Atlas |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/specimenpro/id6753773469/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/planetary-atlas/id6799784633/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 64 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Celestian](https://appshunter.io/developer/1844958071) | [Aaron Hughes](https://appshunter.io/developer/568735814) |

## What reviewers say

### SpecimenPro

[App page](https://appshunter.io/ios/app/specimenpro/id6753773469)

Catalog and manage any type of collection with advanced tools for documentation, measurement, and organization. Features include QR code tracking, AR measurements, and offline functionality, making it ideal for both personal hobbyists and professional institutions.

**Highlights:** QR code tracking and scanning, AR measurements for dimensions, Photo documentation with markup, Customizable metadata fields, Offline functionality, iCloud sync, CSV and SQLite export

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $9.99 | one-time |


### Planetary Atlas

[App page](https://appshunter.io/ios/app/planetary-atlas/id6799784633)

Explore detailed 3D models of planets, moons, and asteroids. Zoom from a solar system overview down to individual craters, with all features accurately named. Measure distances and compare celestial bodies.

**Highlights:** Interactive 3D planetary models, Zoomable from solar system to crater level, Accurate naming of celestial features, Measurement tools for distances, Comparison of celestial body sizes, Offline exploration of mapped worlds

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Atlas Pro Monthly | $1.99 | per month |
| Atlas Pro Yearly | $12.99 | per year |
| Atlas Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is SpecimenPro free?

SpecimenPro is free to download, with in-app purchases available.

### Is Planetary Atlas free?

Planetary Atlas is free to download, with in-app purchases available.

### Which has better reviews, SpecimenPro or Planetary Atlas?

SpecimenPro and Planetary Atlas are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SpecimenPro or Planetary Atlas have ads?

Neither SpecimenPro nor Planetary Atlas shows ads.

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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.*