Ontrak vs ZeroHarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ontrak
Manage upcoming shifts and review past time sheets. This application is designed for candidates of OnTrak Recruitment to stay organized and informed about their work schedules.
- Shift management
- Time sheet tracking
- Candidate organization
- Schedule overview
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An app to help OnTrak Recruitment candidates manage their upcoming shifts and past time sheets.
ZeroHarm
Conduct health and safety risk assessments before entering hazardous environments. Get real-time safety information like weather and alerts from colleagues. Designed for organizations with staff in dangerous conditions.
- Task risk assessment
- Safety information access
- Weather and sea conditions
- Colleague alerts
- Hazardous environment support
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The ZeroHarm app is designed to allow the user to carry out a health and safety risk assessment before beginning in a potentially dangerous environment. The App has a number of key safety features: • It will enable the user to complete a simple task risk assessment prior to conducting the task. The app will walk the user through a number of questions to ensure that the user has carefully considered all aspects of any potential risk that may occur. The app is designed principally for organizations that have staff operating in dangerous conditions such as over water, near stored energy, working at height or in the line of fire, as well as many other potentially hazardous and dangerous conditions. • It provides up-to-date safety information at your fingertips, such as the weather and local sea conditions for your area. • It has an alert feature so your colleagues can notify you when something changes such as the weather, or there is something you need to know. Lloyds Register is committed to safety at work and this app has been created to help achieve that goal.
Screenshots
Verdict
The clearest difference is review sentiment: ZeroHarm at 50% against Ontrak's 0%. ZeroHarm also leads on iOS requirement (13 vs 15.6). On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 2, 2026.
| Parameter | Ontrak | ZeroHarm |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13 — better |
| Further details — not scored | ||
| Size | 21 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Contra Agency | Lloyd's Register Group Services Limited |
Customer experience
Ontrak
ZeroHarm
In-app purchases
Ontrak
No in-app purchases
ZeroHarm
No in-app purchases









