CrewAlert TOD vs HOLIS Control
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
CrewAlert TOD
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CrewAlert TOD is a powerful tool designed for airline crews to streamline data collection under their airline's supervision, supplementing traditional fatigue reporting systems. The app allows crew members to quickly and easily perform self-assessments, tracking key factors such as the Karolinska Sleepiness Scale (KSS), usage of controlled rest, and other indicators that can assist airlines in identifying overall trends and improve their rostering practices. By using the app regularly, crew members not only provide valuable insights to their airline but also develop greater self-awareness of their own fatigue levels, with potential to enhance both personal well-being and operational safety. Note: CrewAlert TOD cannot be used without an approved βsurvey codeβ and a βpersonal ID codeβ. Those will for each data collection be provided by a designated 'data collection coordinator' at the operator.
HOLIS Control
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- Measures service milestones during a stopover for an air carrier aircraft. - Visualization of delayed operations - Calculation of the probable time of departure - Displays the results of the measurements on the HOLIS GOC SaaS application, digital handbook for airline ground operations.
Screenshots
Verdict
The clearest difference is update cadence: HOLIS Control at weekly against CrewAlert TOD's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CrewAlert TOD ships an update fortnightly, HOLIS Control weekly. The most recent releases landed on September 4, 2026 and May 17, 2026 respectively.
| Parameter | CrewAlert TOD | HOLIS Control |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 15.2 β better | 16.0 |
| Further details β not scored | ||
| Size | 56 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeppesen Systems AB | CIM COMMUNICATION INFORMATION MANAGEME |
In-app purchases
CrewAlert TOD
No in-app purchases
HOLIS Control
No in-app purchases
Questions
Is CrewAlert TOD free?
Is HOLIS Control free?
Do CrewAlert TOD or HOLIS Control have ads?
Which is updated more often, CrewAlert TOD or HOLIS Control?
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