# SOLO viSo 4 vs Feetneeds Scan

The clearest difference is update cadence: SOLO viSo 4 at every 2 weeks against Feetneeds Scan's every 4 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.

SOLO viSo 4 ships an update every 2 weeks, Feetneeds Scan every 4 months. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SOLO viSo 4 | Feetneeds Scan |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Size | 56 MB | 37 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Xyken](https://appshunter.io/developer/1477244346) | [Plasmics GmbH](https://appshunter.io/developer/1896622289) |

## What reviewers say

### SOLO viSo 4

[App page](https://appshunter.io/ios/app/solo-viso-4/id6759469920)

**In-app purchases:** none


### Feetneeds Scan

[App page](https://appshunter.io/ios/app/feetneeds-scan/id6769005384)

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

**In-app purchases:** none


## Frequently asked questions

### Is SOLO viSo 4 free?

SOLO viSo 4 is free to download, with no in-app purchases.

### Is Feetneeds Scan free?

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

### Do SOLO viSo 4 or Feetneeds Scan have ads?

Neither SOLO viSo 4 nor Feetneeds Scan shows ads.

### Which is updated more often, SOLO viSo 4 or Feetneeds Scan?

SOLO viSo 4 ships an update every 2 weeks, and Feetneeds Scan every 4 months. Most recently, SOLO viSo 4 was updated on October 28, 2026 and Feetneeds Scan on October 25, 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.*