# sSLOPE vs FlowAnalyzer

The clearest difference is price: FlowAnalyzer at Free against sSLOPE's $3.99. FlowAnalyzer also leads on update cadence (every 6 weeks vs every 27 months). sSLOPE's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

FlowAnalyzer is free to download; sSLOPE costs $3.99 up front. FlowAnalyzer sells 1 one-off in-app purchase. sSLOPE asks for nothing beyond the download.

sSLOPE ships an update every 27 months, FlowAnalyzer every 6 weeks. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | sSLOPE | FlowAnalyzer |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sslope/id1403201500/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 4 MB | 28 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roozbeh Geraili Mikola](https://appshunter.io/developer/1403201499) | [Transparent Blue Water LLC](https://appshunter.io/developer/1847968351) |

## What reviewers say

### 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


### FlowAnalyzer

[App page](https://appshunter.io/ios/app/flowanalyzer-water-network/id6754671981)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlowAnalyzer Pro | $9.99 | one-time |


## Frequently asked questions

### Is sSLOPE free?

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

### Is FlowAnalyzer free?

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

### Do sSLOPE or FlowAnalyzer have ads?

Neither sSLOPE nor FlowAnalyzer shows ads.

### Which is updated more often, sSLOPE or FlowAnalyzer?

sSLOPE ships an update every 27 months, and FlowAnalyzer every 6 weeks. Most recently, sSLOPE was updated on September 23, 2026 and FlowAnalyzer on September 13, 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.*