# Second Memory vs GCode Scanner for CNC Machines

The clearest difference is update cadence: GCode Scanner for CNC Machines at every 3 weeks against Second Memory's every 9 months. GCode Scanner for CNC Machines also leads on iOS requirement (16.4 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Second Memory sells 3 one-off in-app purchases and GCode Scanner for CNC Machines sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Second Memory ships an update every 9 months, GCode Scanner for CNC Machines every 3 weeks. The most recent releases landed on September 17, 2026 and August 27, 2026 respectively.

## The numbers

| Metric | Second Memory | GCode Scanner for CNC Machines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 77 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Apptown Studio AB](https://appshunter.io/developer/330530757) | [Jeremiah Moore](https://appshunter.io/developer/1695450531) |

## What reviewers say

### Second Memory

[App page](https://appshunter.io/ios/app/second-memory/id1476374852)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Storage of 50 extra memories | $0.99 | one-time |
| Storage of 100 extra memories | $1.99 | one-time |
| Unlimited storage of memories | $2.99 | one-time |


### GCode Scanner for CNC Machines

[App page](https://appshunter.io/ios/app/gcode-scanner-for-cnc-machines/id6747010022)

This tool allows users to view and simulate CNC machine code (G-code) and 3D model files (STL) before production. It helps prevent errors, save tools, and reduce setup times for machinists, programmers, and engineers.

**Highlights:** G-code viewer with real-time toolpath playback, Error detection for gouges and over-travels, STL model viewer, Universal G-code compatibility, Shop-floor ready interface, Import from cloud storage or local device

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Membership | $4.99 | per 7 days |
| Pro Monthly Membership | $7.99 | per month |
| Pro Annual Membership | $69.99 | per year |


## Frequently asked questions

### Is Second Memory free?

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

### Is GCode Scanner for CNC Machines free?

GCode Scanner for CNC Machines is free to download, with in-app purchases available.

### Do Second Memory or GCode Scanner for CNC Machines have ads?

Neither Second Memory nor GCode Scanner for CNC Machines shows ads.

### Which is updated more often, Second Memory or GCode Scanner for CNC Machines?

Second Memory ships an update every 9 months, and GCode Scanner for CNC Machines every 3 weeks. Most recently, Second Memory was updated on September 17, 2026 and GCode Scanner for CNC Machines on August 27, 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.*