SpecimenPro vs Planetary Atlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SpecimenPro
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.
- QR code tracking and scanning
- AR measurements for dimensions
- Photo documentation with markup
- Customizable metadata fields
- Offline functionality
- iCloud sync
- CSV and SQLite export
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Whether you have ten treasures or ten thousand, SpecimenPro turns your collection into something you can search, measure, map, and share. It brings the reliability of museum software to anyone who collects anything. Rocks, fossils, shells, plants, coins, trading cards, LEGO sets: if you collect it, you can catalog it. Geologists, paleontologists, biologists, chemists, museum professionals, and hobbyists all get the same powerful tools, from personal finds to institutional collections. CAPTURE EVERYTHING - Multiple photo types: specimen, drawer, detail, and document views - Photo markup with drawing tools - Voice notes for quick observations - File attachments: PDFs, spreadsheets, and images - On-board OCR reads labels with no internet required - Optional Apple Vision text scanning (opt-in) MEASURE AND DOCUMENT - AR measurements: length, width, height, and volume - GPS location extracted from your photos - Custom metadata fields for any specimen type, configurable per collection - Auto-numbered specimens, with custom IDs to match your own cataloging system FIND ANYTHING INSTANTLY - QR code generation and scanning for instant lookup - Location QR codes for quick filtering - Tags, searchable metadata, and advanced search BUILT FOR THE FIELD - Works completely offline, so no signal is no problem - Runs great on iPhone, iPad mini, and iPad - Battery-efficient for long field days - Photo compression saves storage space - Rugged workflow, refined interface ORGANIZE AT ANY SCALE - Multiple collections: museum, field expeditions, or custom - Physical location tracking by cabinet, drawer, shelf, and more (customizable) - Transaction tracking for loans, exhibitions, and photography - Contact management for borrowers and institutions - Overdue loan alerts IN-APP EVENTS - Virtual collecting experiences: museum exhibits, gem shows, and field trips - Scan QR codes at physical locations to collect specimens - Each event automatically creates a collection when you scan your first specimen - Badges, progress tracking, and achievements SYNC, EXPORT, AND SHARE - iCloud sync across all your devices (opt-in) - Offline-first design with automatic conflict resolution - Share collections with collaborators - Import from other devices or from CSV, matched to your data scheme - Export text data to CSV - Export to SQLite for Python and R analysis, including all data - Import/export templates for sharing DATA INTEGRITY - SQLite database with validation and constraints - Transaction-based operations ensure consistency - Automatic backup of all data and media (opt-in) - Easy recovery and migration PRIVACY, PLAINLY - No analytics or tracking - No third-party SDKs - All data is stored locally or in your private iCloud - You own your data, completely FREE TO START SpecimenPro Lite is the free default installation: - Unlimited access to in-app events - Up to 3 collections, with up to 10 specimens each - One starter collection with eight specimens included - One in-app purchase unlocks unlimited collections and specimens
Planetary Atlas
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.
- 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
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Planetary Atlas turns open planetary-science imagery into an atlas you can fly through. Start at the whole solar system, pick a world, and pinch your way down from the full globe to a single crater floor — with the name of everything you pass. FOURTEEN WORLDS Four planets, seven moons, Ceres and two asteroids. 829 imagery layers and 15,025 named features, all built from open data published by NASA, the USGS and the mission teams who gathered it. SEE THE REAL SURFACE Every world is assembled from the actual spacecraft mosaics — Lunar Reconnaissance Orbiter at the Moon, the Mars Reconnaissance Orbiter and Viking at Mars, Cassini out at Saturn's moons. Where a mission mapped a place in detail, you can keep zooming until you are looking at metres per pixel. NAMED FEATURES Craters, maria, valleys, ridges, plains and landing sites, labelled with the names the International Astronomical Union gave them. Search for one, or just wander until something catches your eye. MEASURE THINGS Draw across a crater to get its width. Compare a canyon on Mars against one you already know on Earth. A to-scale view sets the worlds side by side at their true relative sizes, which is the fastest way to feel how small Ceres is and how far Jupiter's moons outrun our own. BUILT FOR CURIOSITY No account. No feed. No advertising. The atlas opens where you left it and gets out of the way. THE MOON IS FREE Explore the entire Moon — every layer, every named feature, the full set of tools — without paying anything. Atlas Pro opens the other thirteen worlds. ATLAS PRO A subscription unlocks all 14 worlds and every tool, available monthly or yearly, or as a one-time lifetime purchase. Family Sharing is supported on all three. Terms of Use (EULA): https://planetatlas.org/terms Privacy Policy: https://planetatlas.org/privacy Questions, corrections, or a feature you want mapped: hello@planetatlas.org
Screenshots
Verdict
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.
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. 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.
| Parameter | SpecimenPro | Planetary Atlas |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 1 |
| Update frequency | Every 3 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Aaron Celestian | Aaron Hughes |
Customer experience
SpecimenPro
Planetary Atlas
In-app purchases
SpecimenPro
- Full Version$9.99
Planetary Atlas
- Atlas Pro Monthly$1.991 Month
- Atlas Pro Yearly$12.991 Year
- Atlas Pro Lifetime$29.99
Questions
Is SpecimenPro free?
Is Planetary Atlas free?
Which has better reviews, SpecimenPro or Planetary Atlas?
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