# Vision Spectra vs Semi Dig

The clearest difference is update cadence: Semi Dig at every 17 months against Vision Spectra's every 34 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Vision Spectra ships an update every 34 months, Semi Dig every 17 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Vision Spectra | Semi Dig |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 17 months** |
| Size | 35 MB | 62 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Laurin Publishing Co., Inc.](https://appshunter.io/developer/657383362) | [Gold Flag Media LLC](https://appshunter.io/developer/1573843456) |

## What reviewers say

### Vision Spectra

[App page](https://appshunter.io/ios/app/vision-spectra/id1467199901)

**Features:** macOS Compatibility

**In-app purchases:** none


### Semi Dig

[App page](https://appshunter.io/ios/app/semi-dig/id1573843454)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vision Spectra free?

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

### Is Semi Dig free?

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

### Do Vision Spectra or Semi Dig have ads?

Neither Vision Spectra nor Semi Dig shows ads.

### Which is updated more often, Vision Spectra or Semi Dig?

Vision Spectra ships an update every 34 months, and Semi Dig every 17 months. Most recently, Vision Spectra was updated on October 26, 2026 and Semi Dig on October 12, 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.*