DataOnline Asset Viewer vs Catalyst by APSM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DataOnline Asset Viewer
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.
- View notifications, alerts, and alarms
- Acknowledge critical information
- Remote access to data
- On-the-go functionality
- Quick decision-making support
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As an alternative to our DOLV3 portal, Asset Viewer is ideal for our customers when they are on the go and still require critical information at their fingertips. Notifications, alerts, and alarms can now be viewed and acknowledged on your iPhone, facilitating quick and decisive action where necessary.
Catalyst by APSM
This mobile application enhances field operations for the APSM Software Platform. It allows users to perform tasks like logging, inspections, and managing work orders. Access essential documents and asset information conveniently, both online and offline.
- Online and offline field operations
- Logging and inspections
- Corrective work orders
- Download and review SOPs, MPs, TOS, P&IDs
- Access asset information
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The APSM App is designed to complement the APSM Software Platform by offering a streamlined mobile application for both online and limited offline field operations, encompassing tasks such as logging, inspections, and corrective work orders. This application provides users with convenient and rapid access to download and review essential documents, including Standard Operating Procedures (SOPs), Maintenance Procedures (MPs), Technical Operating Specifications (TOS), and P&IDs, in addition to asset information.
Screenshots
Verdict
The clearest difference is rating: Catalyst by APSM at 5.0 against DataOnline Asset Viewer's 2.2. DataOnline Asset Viewer's advantage is update cadence (every 2 months vs every 7 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Catalyst by APSM holds the better App Store score, 5.0 against 2.2. Both are backed by a comparable volume of ratings — 5 and 2 respectively.
DataOnline Asset Viewer ships an update every 2 months, Catalyst by APSM every 7 months. The most recent releases landed on June 1, 2026 and September 18, 2026 respectively.
| Parameter | DataOnline Asset Viewer | Catalyst by APSM |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (5 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 2 |
| Update frequency | Every 2 months — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 21 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | DataOnline LLC | APSM, LLC |
Customer experience
DataOnline Asset Viewer
Catalyst by APSM
In-app purchases
DataOnline Asset Viewer
No in-app purchases
Catalyst by APSM
No in-app purchases
Questions
Is DataOnline Asset Viewer free?
Is Catalyst by APSM free?
Which has better reviews, DataOnline Asset Viewer or Catalyst by APSM?
Do DataOnline Asset Viewer or Catalyst by APSM have ads?
Which is updated more often, DataOnline Asset Viewer or Catalyst by APSM?
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