# Solve3Var3Eq vs CNC Troubleshooting

The clearest difference is iOS requirement: CNC Troubleshooting at 11.0 against Solve3Var3Eq's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Solve3Var3Eq ships an update every 6 months, CNC Troubleshooting every 7 months. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Solve3Var3Eq | CNC Troubleshooting |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/cnc-troubleshooting/id1630009455/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 7 months |
| Monetization | — | Free |
| Size | 1 MB | 735 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Global Business Strategies, Inc.](https://appshunter.io/developer/1292082007) | [Ven Swaminathan](https://appshunter.io/developer/1630009457) |

## What reviewers say

### Solve3Var3Eq

[App page](https://appshunter.io/ios/app/solve3var3eq/id1292082008)

**Features:** macOS Compatibility

**In-app purchases:** none


### CNC Troubleshooting

[App page](https://appshunter.io/ios/app/cnc-troubleshooting/id1630009455)

This app helps users troubleshoot CNC machines, PLCs, and robots with FANUC drives. It uses step-by-step flowcharts and YES/NO questions to identify faulty parts, saving on expensive service engineer visits. It supports FANUC and SIEMENS CNC machines, with more knowledge bases to be added.

**Highlights:** Step-by-step troubleshooting flowcharts, Alarm and symptom-based approaches, YES/NO question guidance, Text assistance for unsure answers, Maintenance and safety procedures, Support for FANUC and SIEMENS CNC machines

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solve3Var3Eq free?

Solve3Var3Eq is free to download, with no in-app purchases.

### Is CNC Troubleshooting free?

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

### Do Solve3Var3Eq or CNC Troubleshooting have ads?

Neither Solve3Var3Eq nor CNC Troubleshooting shows ads.

### Which is updated more often, Solve3Var3Eq or CNC Troubleshooting?

Solve3Var3Eq ships an update every 6 months, and CNC Troubleshooting every 7 months. Most recently, Solve3Var3Eq was updated on September 19, 2026 and CNC Troubleshooting on June 1, 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.*