# Cortona3D Viewer vs Menlo AI

The clearest difference is review sentiment: Menlo AI at 93% against Cortona3D Viewer's 40%. Menlo AI also leads on price (Free vs $2.99) and rating (4.5 vs 3.0). Cortona3D Viewer's advantage is in-app purchases (none vs 2). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Menlo AI is free to download; Cortona3D Viewer costs $2.99 up front. Menlo AI sells 2 in-app purchases, starting at $7.99 per month. Cortona3D Viewer asks for nothing beyond the download.

Menlo AI holds the better App Store score, 4.5 against 3.0. Both are backed by a comparable volume of ratings — 4 and 8 respectively. Written reviews point the same way: 40% of Cortona3D Viewer's written reviews are positive against 93% of Menlo AI's.

Cortona3D Viewer ships an update every 7 months, Menlo AI every 5 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Cortona3D Viewer | Menlo AI |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/cortona3d-viewer/id471275514/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/menlo-ai/id6738591721/reviews)** |
| Number of ratings | 4 | **8** |
| Positive reviews | 40.0% of reviews | **92.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Monetization | Paid | **Freemium** |
| Size | 96 MB | 17 MB |
| Requires iOS | **15.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ParallelGraphics](https://appshunter.io/developer/471275517) | [Rohildev Nattukallingal](https://appshunter.io/developer/1776332449) |

## What reviewers say

### Cortona3D Viewer

[App page](https://appshunter.io/ios/app/cortona3d-viewer/id471275514)

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.

**Highlights:** 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

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

**In-app purchases:** none


### Menlo AI

[App page](https://appshunter.io/ios/app/menlo-ai/id6738591721)

This AI assistant enhances in-person meetings by automatically taking notes, identifying action items, and scheduling follow-ups. It prioritizes user privacy by storing all data locally on the device or in personal iCloud accounts. The app offers seamless calendar integration and quick sharing of meeting summaries.

**Highlights:** Private AI note-taking for in-person meetings, Automatic action item detection with reminders, Calendar integration and meeting reminders, Secure data storage on device or iCloud, Quick sharing of meeting summaries, Automatic event detection

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Menlo AI Pro | $7.99 | per month |
| Menlo AI Pro | $99.99 | per year |


## Frequently asked questions

### Is Cortona3D Viewer free?

Cortona3D Viewer costs $2.99, with no in-app purchases.

### Is Menlo AI free?

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

### Which has better reviews, Cortona3D Viewer or Menlo AI?

Menlo AI is rated higher. Cortona3D Viewer averages 3.0 out of 5 from 4 ratings, while Menlo AI averages 4.5 from 8 ratings.

### Do Cortona3D Viewer or Menlo AI have ads?

Neither Cortona3D Viewer nor Menlo AI shows ads.

### Which is updated more often, Cortona3D Viewer or Menlo AI?

Cortona3D Viewer ships an update every 7 months, and Menlo AI every 5 days. Most recently, Cortona3D Viewer was updated on November 1, 2026 and Menlo AI on October 30, 2026.

---

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