Cortona3D Viewer vs WP 34s
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cortona3D Viewer
View interactive 3D and 2D product catalogs, work instructions, and maintenance guides. Immerse yourself in 3D procedures and VRML scenes with augmented reality on your iPhone and iPad. Supports legacy 2D and interactive 3D content derived from CAD.
- Augmented reality support
- Interactive 3D and 2D content
- Multi-touch gestures for navigation
- Exploded views and bill of materials
- Part search and hide/show
- Step-by-step instructions
- Content upload and sharing
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Cortona3D Viewer is your tool for interactive 3D and 2D product catalogs, work instructions, maintenance guides, and manuals created using Cortona3D RapidAuthor. With this tool, you can immerse yourself in 3D procedures and VRML scenes through augmented reality on your iPhone. Many equipment manufacturers are now enhancing their technical documentation. The Cortona3D Viewer supports AR, 3D interaction, full-text search, and interactive 2D elements, making it compatible with both legacy 2D and interactive 3D content derived from CAD. Interactive 3D streamlines complex maintenance and assembly communication, aids part identification, and facilitates mechanical skill training. It can also serve as a sales tool for product feature demos. Cortona3D Viewer on iOS complements RapidAuthor tools. RapidAuthor generates comprehensive technical documents with text, 2D, and 3D graphics from CAD and bill of materials data. Even if your company doesn't use Cortona3D RapidAuthor, you can still install Cortona3D Viewer to access sample content featuring 3D, legacy 2D graphics, and AR elements. Features: — AR support for procedures and VRML scenes — Multi-touch gestures for navigation — Exploded views and full bill of materials hierarchy — Part-specific additional information on touch — Various selection modes for parts — Part search, hide/show — Order parts using the shopping cart — Detailed Parts List with Part Number, Nomenclature, etc. — Links from IPC and procedures to other documents — Comprehensive viewing of 2D images in SGM and SVG formats — Inspect sheet transition animations in parts catalogs — Playback or scrub through animated install/remove sequences — Step-by-step instructions as text overlay — Dynamic cross-section and distance measuring — Navigation cube — Universal app for iPhone and iPad — Content upload and sharing via iCloud — Examples of ESA astronaut training content.
WP 34s
This app is a powerful RPN scientific calculator with extensive functions for mathematics, statistics, programming, and engineering. It includes programmer functions, fraction mode, probability distributions, and a stopwatch, offering a comprehensive tool for complex calculations.
- RPN scientific calculator implementation
- Programmer functions (binary, octal, hexadecimal)
- Fraction mode and probability distributions
- Stopwatch with real-time clock
- Mathematical, statistical, and financial functions
- Unit conversions and physical constants
- Extended character sets for multiple languages
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WP 34s is the most powerful and complete implementation of a classic RPN scientific calculator. Now available on iOS too (see the support site for other emulators and for the real stuff). The function set of the WP 34S is based on the most powerful programmable RPN calculators built so far and we expanded the set, incorporating programmer functions (base 2, 8 & 16), a fraction mode, probability distributions, a stopwatch... We also included numerous additional useful functions for mathematics, statistics, physics, engineering, programming, I/O, etc., such as: + Euler’s Beta and Riemann’s Zeta functions, Bernoulli and Fibonacci numbers, Lambert’s W, the error function, and the Chebyshev, Hermite, Laguerre, and Legendre orthogonal polynomials (no more need to carry heavy printed tables), + many statistical distributions and their inverses: Poisson, Binomial, Geometric, Cauchy-Lorentz, Exponential, Logistic, Weibull, Lognormal, and Gaussian, + programmable sums and products, first and second derivatives, solving quadratic equations for real and complex roots, + testing for primality, + integer computing in fifteen bases from binary to hexadecimal, + extended date and time operations and a stopwatch3 based on a real-time clock, + financial operations such as mean rate of return and margin calculations, + 88 conversions, mainly from old Imperial to universal SI units and vice versa, + 50 fundamental physical constants as accurate as used today by national standards institutes such as NIST or PTB, plus a selection of important constants from mathematics, astronomy, and surveying, + Greek and extended Latin letters covering the languages of almost half of the world’s population (upper and lower case in two font sizes), plus mathematical symbols. A beginner manual can be downloaded at http://sourceforge.net/projects/wp34s/files/doc/WP_34S_Beg_Guide.pdf and a full, very complete version at http://sourceforge.net/projects/wp34s/files/doc/Manual_wp_34s_3_1.pdf
Screenshots
Verdict
The clearest difference is review sentiment: WP 34s at 93% against Cortona3D Viewer's 40%. WP 34s also leads on price (Free vs $2.99) and rating (4.7 vs 3.0). On update cadence, ads, 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
WP 34s is free to download; Cortona3D Viewer costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
WP 34s holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: WP 34s has 29 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 40% of Cortona3D Viewer's written reviews are positive against 93% of WP 34s's.
Cortona3D Viewer ships an update every 7 months, WP 34s every 4 months. Both last shipped on October 23, 2026.
| Parameter | Cortona3D Viewer | WP 34s |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.0 (4 ratings) | 4.7 (29 ratings) — better |
| Positive reviews | 40.0% of reviews | 92.6% of reviews — better |
| Number of ratings | 4 | 29 — better |
| Update frequency | Every 7 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 96 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | ParallelGraphics | Pascal Meheut |
Customer experience
Cortona3D Viewer
WP 34s
In-app purchases
Cortona3D Viewer
No in-app purchases
WP 34s
No in-app purchases









