# WeldEquations vs CSiSections

The clearest difference is update cadence: CSiSections at monthly against WeldEquations's every 12 months. CSiSections also leads on iOS requirement (9.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

WeldEquations ships an update every 12 months, CSiSections monthly. The most recent releases landed on September 27, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | WeldEquations | CSiSections |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Size | 7 MB | 12 MB |
| Requires iOS | 26.0 | **9.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Glendale Coding Labs, Inc](https://appshunter.io/developer/1266859626) | [Computers and Structures, Inc.](https://appshunter.io/developer/1119970032) |

## What reviewers say

### WeldEquations

[App page](https://appshunter.io/ios/app/weldequations/id1266859627)

**Features:** macOS Compatibility

**In-app purchases:** none


### CSiSections

[App page](https://appshunter.io/ios/app/csisections/id1344131515)

**In-app purchases:** none


## Frequently asked questions

### Is WeldEquations free?

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

### Is CSiSections free?

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

### Do WeldEquations or CSiSections have ads?

Neither WeldEquations nor CSiSections shows ads.

### Which is updated more often, WeldEquations or CSiSections?

WeldEquations ships an update every 12 months, and CSiSections monthly. Most recently, WeldEquations was updated on September 27, 2026 and CSiSections on August 22, 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.*