# Skylink vs ACME (Unum ID)

The clearest difference is iOS requirement: ACME (Unum ID) at 13.2 against Skylink's 17.2. 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.

Skylink ships an update every 2 months, ACME (Unum ID) every 6 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Skylink | ACME (Unum ID) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/skylink/id696882097/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 6 MB | 22 MB |
| Requires iOS | 17.2 | **13.2** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sunshine Electronic Display Corporation](https://appshunter.io/developer/696882100) | [Unum ID, Inc.](https://appshunter.io/developer/1446324828) |

## What reviewers say

### Skylink

[App page](https://appshunter.io/ios/app/skylink/id696882097)

Manage your digital signage with this app. View signs on a map, check current values, locate errors, and update configurations remotely. Designed for customers of a specific electronic display corporation.

**Highlights:** Digital map view of signs, View current sign values, Locate sign errors, Change sign configuration, Update sign values

**Features:** macOS Compatibility

**In-app purchases:** none


### ACME (Unum ID)

[App page](https://appshunter.io/ios/app/acme-unum-id/id1557576599)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Skylink free?

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

### Is ACME (Unum ID) free?

ACME (Unum ID) is free to download, with no in-app purchases.

### Do Skylink or ACME (Unum ID) have ads?

Neither Skylink nor ACME (Unum ID) shows ads.

### Which is updated more often, Skylink or ACME (Unum ID)?

Skylink ships an update every 2 months, and ACME (Unum ID) every 6 weeks. Most recently, Skylink was updated on November 1, 2026 and ACME (Unum ID) on November 7, 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.*