# Linear System Solver vs Humanity Time by TCP

The clearest difference is price: Humanity Time by TCP at Free against Linear System Solver's $0.99. Linear System Solver's advantage is update cadence (every 3 days vs fortnightly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Humanity Time by TCP is free to download; Linear System Solver costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Linear System Solver ships an update every 3 days, Humanity Time by TCP fortnightly. The most recent releases landed on September 26, 2026 and August 15, 2026 respectively.

## The numbers

| Metric | Linear System Solver | Humanity Time by TCP |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.8 (4 ratings)](https://appshunter.io/ios/app/humanity-time-by-tcp/id6661013219/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | — | Free |
| Size | 1 MB | 94 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Luigi Fonti](https://appshunter.io/developer/360904185) | [Humanity.com, LLC](https://appshunter.io/developer/864258525) |

## What reviewers say

### Linear System Solver

[App page](https://appshunter.io/ios/app/linear-system-solver/id6469396751)

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

**In-app purchases:** none


### Humanity Time by TCP

[App page](https://appshunter.io/ios/app/humanity-time-by-tcp/id6661013219)

This app provides a mobile solution for businesses to track employee hours, manage time-off requests, and monitor attendance. It offers features like GPS clock-in, schedule viewing, and expense logging to streamline labor management and reduce paperwork.

**Highlights:** Clock in and out with GPS/geofencing, Track hours, breaks, and time off, View schedules and total hours worked, Approve punches and manage timesheets, Log expenses by job or location

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

**In-app purchases:** none


## Frequently asked questions

### Is Linear System Solver free?

Linear System Solver costs $0.99, with no in-app purchases.

### Is Humanity Time by TCP free?

Humanity Time by TCP is free to download, with no in-app purchases.

### Do Linear System Solver or Humanity Time by TCP have ads?

Neither Linear System Solver nor Humanity Time by TCP shows ads.

### Which is updated more often, Linear System Solver or Humanity Time by TCP?

Linear System Solver ships an update every 3 days, and Humanity Time by TCP fortnightly. Most recently, Linear System Solver was updated on September 26, 2026 and Humanity Time by TCP on August 15, 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.*