# Søby Predictive Maintenance vs AltID

The clearest difference is update cadence: AltID at monthly against Søby Predictive Maintenance's every 6 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.

Søby Predictive Maintenance ships an update every 6 months, AltID monthly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Søby Predictive Maintenance | AltID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (9 ratings)](https://appshunter.io/ios/app/altid/id6753582053/reviews)** |
| Number of ratings | — | **9** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | — | Free |
| Size | 67 MB | 90 MB |
| Requires iOS | **15.0** | 15.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Aarhus Universitet](https://appshunter.io/developer/1160146447) | [Digitaliseringsstyrelsen](https://appshunter.io/developer/1506727481) |

## What reviewers say

### Søby Predictive Maintenance

[App page](https://appshunter.io/ios/app/sby-predictive-maintenance/id6753162628)

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

**In-app purchases:** none


### AltID

[App page](https://appshunter.io/ios/app/altid/id6753582053)

Securely store and manage your digital identification and credentials on your device. Verify age or share specific ID details while maintaining control over your personal information. Future credential types will be added.

**Highlights:** Store digital credentials locally, Verify age anonymously, Share specific ID information, QR code sharing, Request and swipe to share, Control information sharing

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

**In-app purchases:** none


## Frequently asked questions

### Is Søby Predictive Maintenance free?

Søby Predictive Maintenance is free to download, with no in-app purchases.

### Is AltID free?

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

### Do Søby Predictive Maintenance or AltID have ads?

Neither Søby Predictive Maintenance nor AltID shows ads.

### Which is updated more often, Søby Predictive Maintenance or AltID?

Søby Predictive Maintenance ships an update every 6 months, and AltID monthly. Most recently, Søby Predictive Maintenance was updated on October 30, 2026 and AltID on October 24, 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.*