Comparison

novaalert vs CALIMA

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

Head to head
About

novaalert

Features
Read full description

With the novaalert mobileAPP, your staff and task forces are perfectly equipped for efficient and safe working. Even in emergency situations. Take advantage of novaalert's full range of services on your smartphone, wherever you are. With novaalert mobileAPP for iOS, you have full control over all your alarm events at all times. Alarm messages can be received and triggered anywhere and at any time. Status monitoring in real time keeps you up to date and enables you to take all necessary actions in an emergency. Minimum requirements: novaalert Server Version 10.2 Functions (excerpt): • Trigger and receive alarms, individually for each user • Multimedia alarm messages with individual attachments • Interactive alarms with update messages • Adhoc alarms, adding people during alarm triggering. • Direct alarm, recording an alarm voice message while the alarm is triggered • Alarm receiving with visual and acoustic signaling • Display of phone callback buttons • Acknowledgement positive and negative • Alarm triggering with optional PIN check • Individual text input when triggering an alarm • Status monitor: alarm process and acknowledgement control in real time • Logon/logoff in groups (oncall service) manually manually, via NFC or QR code scan • Localisation of the smartphone via GPS, novaBEACON, WiFi and nfc • Location visualisation on in-house maps and charts • Extensive lone worker functions (when the Lone Worker mode is activated, permanent localization and communication takes place in the background, this can drastically reduce battery life) • Night watchman patrol function, incl. documentation of patrols • Chat Messenger for group chat and alarm chat (novaCHAT) • Push to Talk (PTT) integrated • Biometric authentication to display incoming alarms, trigger alarms, acknowledge alarms, etc. • Fully serverbased app management • Intelligent link security: Support for both GSM and WLAN connections without interruption, priorities can be controlled • Encrypted communication • Multilingual Demo mode: Immediately after download, the app is in demo mode. Production mode: For productive use, an novaalert™ alarm server from novalink GmbH is required. More information at our website

About

CALIMA

This app turns your smartphone into a personal distress signal. It allows users to trigger an alarm manually or automatically in case of falls, immobility, or timed checks. Upon activation, pre-defined emergency contacts receive alerts with location and message details.

Highlights
  • Manual and automatic alarm triggers
  • Emergency contact alerts via call, SMS, or email
  • Web-based dashboard for management
  • GDPR compliant data storage
  • Meets DGUV requirements
  • Uses existing business smartphones
Features
Read full description

The CALIMA App transforms the standard smartphone into a personal distress signal (PDS) device with which employees can call for immediate help in case of an emergency. ► HOW IS AN ALARM TRIGGERED? » Manual trigger via app, widget and hardware button » Automatic trigger in the event of a fall and immobility » Automatic trigger through an alarm timer (dead man's switch) ► WHAT HAPPENS IF AN ALARM IS TRIGGERED? As soon as an alarm has been triggered, the emergency contacts you have defined will receive a call and a text message or an email with the emergency message and a link. All relevant emergency information can be viewed using the web browser. ► WHAT DO I HAVE TO PAY ATTENTION TO DURING USE? To provide best protection, the following requirements must be met: » App must be open in the background » Functioning smartphone with sufficiently charged battery » Connection to the Internet (via mobile or WLAN) ► WHY CALIMA? » Perfect protection in case of danger (e.g. medical emergency, fall or threat) » GDPR (DSGVO) compliant, as the data is stored in Germany » Meets DGUV requirements, as developed according to rule 112-139 » Recommended by works councils, as no monitoring is possible » High user acceptance, as employees do not have to carry extra devices » No investment costs, as business smartphones are used » Flexible emergency chain with in-house emergency contacts or emergency control center ► HOW IS CALIMA IMPLEMENTED? Employees and emergency contacts can be administered and managed independently via a web-based dashboard. The app is downloaded by employees via the official app stores and installed on their smartphones. For a free trial, email us at info@calima.io.

Screenshots

novaalert4 screens
CALIMA4 screens

Verdict

The call

novaalert and CALIMA are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

novaalert ships an update every 3 months, CALIMA every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

ScorecardNo meaningful differences
novaalert versus CALIMA: the parameters behind the verdict, then further details
ParameternovaalertCALIMA
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.1 — better17.6
Further details — not scored
Size324 MB46 MB
Age rating4+12+
DeveloperNovalinkCALIMA Safety GmbH

In-app purchases

None

novaalert

No in-app purchases

None

CALIMA

No in-app purchases

Questions

Is novaalert free?
novaalert is free to download, with no in-app purchases.
Is CALIMA free?
CALIMA is free to download, with no in-app purchases.
Do novaalert or CALIMA have ads?
Neither novaalert nor CALIMA shows ads.
Which is updated more often, novaalert or CALIMA?
novaalert ships an update every 3 months, and CALIMA every 2 months. Most recently, novaalert was updated on November 2, 2026 and CALIMA on November 3, 2026.

Other comparisons