# Geological Field Notes vs sSLOPE

The clearest difference is rating: sSLOPE at 4.0 against Geological Field Notes's 1.0. sSLOPE also leads on price ($3.99 vs $4.99). Geological Field Notes's advantage is update cadence (every 3 months vs every 27 months) and iOS requirement (12.0 vs 15.6). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Geological Field Notes costs $4.99 and sSLOPE $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

sSLOPE holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Geological Field Notes ships an update every 3 months, sSLOPE every 27 months. The most recent releases landed on August 23, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Geological Field Notes | sSLOPE |
| --- | --- | --- |
| Price | $4.99 | **$3.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/geological-field-notes/id1013592692/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sslope/id1403201500/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 27 months |
| Monetization | Paid | Paid |
| Size | 11 MB | 4 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Liansheng Zhang](https://appshunter.io/developer/448246392) | [Roozbeh Geraili Mikola](https://appshunter.io/developer/1403201499) |

## 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


### sSLOPE

[App page](https://appshunter.io/ios/app/sslope/id1403201500)

Perform quick slope stability analyses on your mobile device. This app uses the simplified Bishop method to calculate the Factor of Safety for soil and rock slopes, supporting various conditions like water tables, external loads, and seismic forces.

**Highlights:** Analyze horizontally layered soil slopes (up to 7 layers), Incorporate water table effects and ponded water, Apply vertical external loading, Model pseudo-static seismic loads, Simulate End Anchored and Soil Nail support, Adjust failure surface search limits, Utilize Mohr-Coulomb and Hoek-Brown strength criteria, Generate and email PDF reports

**In-app purchases:** none


## Frequently asked questions

### Is Geological Field Notes free?

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

### Is sSLOPE free?

sSLOPE costs $3.99, with no in-app purchases.

### Which has better reviews, Geological Field Notes or sSLOPE?

sSLOPE is rated higher. Geological Field Notes averages 1.0 out of 5 from 1 ratings, while sSLOPE averages 4.0 from 1 ratings.

### Do Geological Field Notes or sSLOPE have ads?

Neither Geological Field Notes nor sSLOPE shows ads.

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

Geological Field Notes ships an update every 3 months, and sSLOPE every 27 months. Most recently, Geological Field Notes was updated on August 23, 2026 and sSLOPE on September 23, 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.*