# GDM Explore vs Optimus Notes

The clearest difference is review sentiment: GDM Explore at 100% against Optimus Notes's 0%. GDM Explore also leads on rating (5.0 vs 4.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GDM Explore holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 11 and 6 respectively. Written reviews point the same way: 100% of GDM Explore's written reviews are positive against 0% of Optimus Notes's.

GDM Explore ships an update every 4 weeks, Optimus Notes every 3 weeks. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | GDM Explore | Optimus Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (11 ratings)](https://appshunter.io/ios/app/gdm-explore/id1471039737/reviews)** | [4.0 (6 ratings)](https://appshunter.io/ios/app/optimus-notes/id1561846366/reviews) |
| Number of ratings | **11** | 6 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 68 MB | 41 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GDM Holding S.A.](https://appshunter.io/developer/1478300672) | [Dymaxion Labs](https://appshunter.io/developer/1885907291) |

## What reviewers say

### GDM Explore

[App page](https://appshunter.io/ios/app/gdm-explore/id1471039737)

Streamline soybean genetics evaluation with this mobile tool. Schedule appointments, navigate to plots, scan QR codes for information, and take detailed notes and pictures. It's a practical and efficient way to manage your variety assessments.

**Highlights:** Integrated appointment scheduling, Navigation to Explore Plots, QR code scanning for variety info, Detailed note-taking, Picture capture and tagging, Auto-save to online account

**In-app purchases:** none


### Optimus Notes

[App page](https://appshunter.io/ios/app/optimus-notes/id1561846366)

This app allows users to record and analyze product ratings with customizable selections and voice dictation. It supports offline use, image attachments, and automatic cloud uploads for review and analysis. Data can be exported to Excel for further processing.

**Highlights:** Offline mode, Customizable rating selections, Voice dictation for comments, Attach pictures to notes, Automatic cloud upload, Excel export

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

**In-app purchases:** none


## Frequently asked questions

### Is GDM Explore free?

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

### Is Optimus Notes free?

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

### Which has better reviews, GDM Explore or Optimus Notes?

GDM Explore is rated higher. GDM Explore averages 5.0 out of 5 from 11 ratings, while Optimus Notes averages 4.0 from 6 ratings.

### Do GDM Explore or Optimus Notes have ads?

Neither GDM Explore nor Optimus Notes shows ads.

### Which is updated more often, GDM Explore or Optimus Notes?

GDM Explore ships an update every 4 weeks, and Optimus Notes every 3 weeks. Most recently, GDM Explore was updated on June 1, 2026 and Optimus Notes on September 19, 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.*