# TriSolver vs DrayTek Router

The clearest difference is rating: DrayTek Router at 4.0 against TriSolver's 1.0. DrayTek Router also leads on in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume, update cadence and monetization model there is nothing between them.

Both are free to download. TriSolver sells 3 one-off in-app purchases. DrayTek Router asks for nothing beyond the download.

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

TriSolver ships an update every 4 months, DrayTek Router every 3 months. The most recent releases landed on October 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | TriSolver | DrayTek Router |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/trisolver-triangle-solver/id1066749681/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/draytek-router/id1559664462/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 9.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 6 MB | 26 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Wahlu Labs Pty Ltd](https://appshunter.io/developer/1066749680) | [DrayTek Corp.](https://appshunter.io/developer/878568778) |

## What reviewers say

### TriSolver

[App page](https://appshunter.io/ios/app/trisolver-triangle-solver/id1066749681)

This free utility app helps users solve triangle-related problems for both right-angled and regular triangles. It also offers solutions for 20 other geometric shapes, making it a versatile tool for calculations.

**Highlights:** Solve right-angled triangles, Solve regular triangles, Calculate 20 other shapes, User-friendly interface, Free to use

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2D Shapes | $0.99 | one-time |
| 3D Shapes | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |


### DrayTek Router

[App page](https://appshunter.io/ios/app/draytek-router/id1559664462)

Easily set up and manage Vigor routers from your mobile device. Monitor network status, customize settings like VPN and parental controls, and get a quick overview of client usage without needing a PC or cables.

**Highlights:** Initial router setup without PC, Manage WAN, LAN, WLAN, VPN, Monitor client usage and network status, Customize parental controls and content filtering, Schedule internet access

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

**In-app purchases:** none


## Frequently asked questions

### Is TriSolver free?

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

### Is DrayTek Router free?

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

### Which has better reviews, TriSolver or DrayTek Router?

DrayTek Router is rated higher. TriSolver averages 1.0 out of 5 from 1 ratings, while DrayTek Router averages 4.0 from 1 ratings.

### Do TriSolver or DrayTek Router have ads?

TriSolver shows ads; DrayTek Router does not.

### Which is updated more often, TriSolver or DrayTek Router?

TriSolver ships an update every 4 months, and DrayTek Router every 3 months. Most recently, TriSolver was updated on October 8, 2026 and DrayTek Router on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*