Comparison

CrewAlert TOD vs HOLIS Control

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

CrewAlert TOD

Read full description

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 ’survey code’ and a β€˜personal ID code’. Those will for each data collection be provided by a designated 'data collection coordinator' at the operator.

About

HOLIS Control

Features
Read full description

- 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

CrewAlert TOD4 screens
HOLIS Control4 screens

Verdict

The call

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CrewAlert TOD ships an update fortnightly, HOLIS Control weekly. The most recent releases landed on September 4, 2026 and May 17, 2026 respectively.

Scorecard1 real difference Β· 5 level
CrewAlert TOD versus HOLIS Control: the parameters behind the verdict, then further details
ParameterCrewAlert TODHOLIS Control
PriceFreeFree
Update frequencyFortnightlyWeekly β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.2 β€” better16.0
Further details β€” not scored
Size56 MB11 MB
Age rating4+4+
DeveloperJeppesen Systems ABCIM COMMUNICATION INFORMATION MANAGEME

In-app purchases

None

CrewAlert TOD

No in-app purchases

None

HOLIS Control

No in-app purchases

Questions

Is CrewAlert TOD free?
CrewAlert TOD is free to download, with no in-app purchases.
Is HOLIS Control free?
HOLIS Control is free to download, with no in-app purchases.
Do CrewAlert TOD or HOLIS Control have ads?
Neither CrewAlert TOD nor HOLIS Control shows ads.
Which is updated more often, CrewAlert TOD or HOLIS Control?
CrewAlert TOD ships an update fortnightly, and HOLIS Control weekly. Most recently, CrewAlert TOD was updated on September 4, 2026 and HOLIS Control on May 17, 2026.

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