# A vs Task Quadrant

The clearest difference is price: Task Quadrant at Free against A's $9.99. A's advantage is in-app purchases (none vs 4). On update cadence, ads, device support and iOS requirement there is nothing between them.

Task Quadrant is free to download; A costs $9.99 up front. Task Quadrant sells 4 in-app purchases, starting at $0.99 per 7 days. A asks for nothing beyond the download.

A ships an update every 2 weeks, Task Quadrant monthly. The most recent releases landed on September 9, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | A | Task Quadrant |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Paid | — |
| Size | 10 MB | 14 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 9+ |
| Developer | [Jutarus Ratanasethakul](https://appshunter.io/developer/1454380236) | [Aleksandr Stupak](https://appshunter.io/developer/1759446177) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-truss3d-pro/id1201673511)

Analyze space trusses with this tool designed for structural engineers and students. It offers detailed solutions including node displacements, member forces, and stress, with an intuitive 3D interface and an assistant for complex truss creation.

**Highlights:** 3D graphics and UI, Node displacements, member forces, and stress calculations, Truss Assistant Creator for automatic generation, Direct Stiffness Matrix solver, Multiple viewing options (Proportion, Equal, Wireframe), PDF report generation, Support for large space trusses

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

**In-app purchases:** none


### Task Quadrant

[App page](https://appshunter.io/ios/app/task-quadrant/id6739420630)

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Monthly | $2.99 | per month |
| Annual | $9.99 | per year |
| Full Version | $19.99 | one-time |


## Frequently asked questions

### Is A free?

A costs $9.99, with no in-app purchases.

### Is Task Quadrant free?

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

### Do A or Task Quadrant have ads?

Neither A nor Task Quadrant shows ads.

### Which is updated more often, A or Task Quadrant?

A ships an update every 2 weeks, and Task Quadrant monthly. Most recently, A was updated on September 9, 2026 and Task Quadrant on September 10, 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.*