# Geological Field Notes vs Grain SA

The clearest difference is price: Grain SA at Free against Geological Field Notes's $4.99. Grain SA also leads on update cadence (monthly vs every 3 months) and iOS requirement (10.2 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Grain SA is free to download; Geological Field Notes costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Geological Field Notes ships an update every 3 months, Grain SA monthly. The most recent releases landed on August 23, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Geological Field Notes | Grain SA |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/geological-field-notes/id1013592692/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | — |
| Size | 11 MB | 98 MB |
| Requires iOS | 12.0 | **10.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Liansheng Zhang](https://appshunter.io/developer/448246392) | [4SIGHT SYSTEMS (PTY) LTD](https://appshunter.io/developer/656095757) |

## What reviewers say

### Geological Field Notes

[App page](https://appshunter.io/ios/app/geological-field-notes/id1013592692)

Create detailed geological field notebooks with rich media, including text, images, audio, and drawings. Organize entries with timestamps, passwords, and export them for backup or sharing.

**Highlights:** Rich media note-taking (text, image, audio, video, drawing, links), Integrated geological tools (compass, level, ruler, calculator), Password protection for individual entries, Media expiration options, Export notes as zipped HTML, Cloud backup via Dropbox

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

**In-app purchases:** none


### Grain SA

[App page](https://appshunter.io/ios/app/grain-sa/id1665831580)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Geological Field Notes free?

Geological Field Notes costs $4.99, with no in-app purchases.

### Is Grain SA free?

Grain SA is free to download, with no in-app purchases.

### Do Geological Field Notes or Grain SA have ads?

Neither Geological Field Notes nor Grain SA shows ads.

### Which is updated more often, Geological Field Notes or Grain SA?

Geological Field Notes ships an update every 3 months, and Grain SA monthly. Most recently, Geological Field Notes was updated on August 23, 2026 and Grain SA on September 8, 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.*