# DataOnline Asset Viewer vs Convert Units Calculator

The clearest difference is in-app purchases: DataOnline Asset Viewer at none against Convert Units Calculator's 1. DataOnline Asset Viewer also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Convert Units Calculator sells 1 one-off in-app purchase. DataOnline Asset Viewer asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | DataOnline Asset Viewer | Convert Units Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.2 (5 ratings)](https://appshunter.io/ios/app/dataonline-asset-viewer/id1296279142/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | — |
| Size | 21 MB | 49 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DataOnline LLC](https://appshunter.io/developer/1296279141) | [Nelson Lai](https://appshunter.io/developer/1477911199) |

## What reviewers say

### DataOnline Asset Viewer

[App page](https://appshunter.io/ios/app/dataonline-asset-viewer/id1296279142)

Access critical information and manage alerts remotely. This mobile tool allows users to view and acknowledge notifications, alarms, and alerts on their iPhone for quick decision-making.

**Highlights:** View notifications, alerts, and alarms, Acknowledge critical information, Remote access to data, On-the-go functionality, Quick decision-making support

**Features:** macOS Compatibility

**In-app purchases:** none


### Convert Units Calculator

[App page](https://appshunter.io/ios/app/convert-units-calculator/id6758808738)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Convert Pro | $3.99 | one-time |


## Frequently asked questions

### Is DataOnline Asset Viewer free?

DataOnline Asset Viewer is free to download, with no in-app purchases.

### Is Convert Units Calculator free?

Convert Units Calculator is free to download, with in-app purchases available.

### Do DataOnline Asset Viewer or Convert Units Calculator have ads?

Convert Units Calculator shows ads; DataOnline Asset Viewer does not.

### Which is updated more often, DataOnline Asset Viewer or Convert Units Calculator?

DataOnline Asset Viewer ships an update every 2 months, and Convert Units Calculator every 2 months. Most recently, DataOnline Asset Viewer was updated on November 3, 2026 and Convert Units Calculator on November 3, 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.*