Comparison

BoatAlarm vs Blackout Prepper

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

Head to head
About

BoatAlarm

Features
Read full description

BoatAlarm helps you keep track of current reports on the water. On the interactive map, you can see community reports about potential hazards, obstacles and relevant observations nearby. Features: - Community reports on the map - Create your own reports - View reports near you - Forum and exchange with the community - Personalized profile - Speed display with Premium - Top speed display with Premium - Weather information with temperature, wind direction and wind speed with Premium - Waterway name on the map as a Premium beta feature - New Premium design for a more modern app experience - Push notifications for relevant alerts with Premium - Ad-free use with Premium Create your own profile and become part of the community. BoatAlarm is built on users sharing observations and helping each other stay informed. BoatAlarm is not an official warning, emergency, rescue or navigation service. In dangerous situations, please contact the responsible official authorities. BoatAlarm Premium is available as a monthly or yearly subscription. The monthly subscription runs for 1 month, the yearly subscription runs for 1 year. Payment is handled through your Apple Account. The subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your App Store account settings. Privacy policy, terms and conditions, and terms of use are available in the app.

About

Blackout Prepper

Prepare for emergencies like power outages with this app's comprehensive tools. Manage supplies, track family information, access offline guides, and utilize navigation features. Connect with a community for real-time updates and support.

Highlights
  • Emergency supply management
  • Offline guides and tools
  • Family profiles and document vault
  • Offline maps and GPS navigation
  • Community alerts and reporting
  • Preparedness score
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THOR — YOUR AI ASSISTANT Ask about preparedness and survival, explore app features, or check your pantry with your permission. Use text or your microphone. Thor can highlight upcoming expiration dates, possible gaps, and relevant products. Optional expiration reminders and direct developer contact are included. Internet required. Processing runs on the Blackout Prepper server, with no forwarding to external AI providers. Data is encrypted in transit; AI questions and pantry summaries are not permanently stored. No cloud account or extra fee is required for Thor. AI answers can be incorrect. ALERTS & COMMUNITY • Current alerts and practical response guides. • View and report power outages or fires on the original radar. Choose countries for community push notifications. • Public chat, direct messages and groups to connect with other users. SUPPLIES & PREPAREDNESS • Manage food, drinks, preserved food, medication and other essentials across multiple pantries. • Plan drinking water and calories for people and pets; track expiration dates and reminders. • Scan product barcodes, check supplies and hold and drag entries to sort them. • Checklists, emergency bag and vehicle preparation, plus a preparedness score. • Arrange the main menu and submenus to suit your needs. FAMILY & DOCUMENTS • Family profiles with blood type, allergies, medication and an emergency contact. • Create an offline medical QR code with the information you choose to include. • Store documents and photos on your device in an AES-GCM encrypted vault with a four-digit PIN, animated safe and recovery code. • Record and share family status manually; use a simple emergency guide for kids. • Create a household emergency plan with meeting points and locations of gas, water and electricity shutoffs. MAPS & NAVIGATION • Online maps, saved offline maps and topographic maps with contour lines. • Keep both standard and topographic offline maps and switch between them. • Save map markers and explore shelter information. • GPS backtracking: record a route while the GPS view remains open, follow your way back and export GPX. Matching maps already saved on your device are used automatically. • Barometer on devices with a pressure sensor. EMERGENCY TOOLS & GUIDES • 20 offline guides and step-by-step emergencies, including outages, flooding, storms, fire, heat and evacuation. • Emergency contacts and a location-based SOS message draft you confirm before sending. • CPR metronome, Morse code and SOS signals using the screen, sound and supported flashlight. • Emergency radio frequencies and support for compatible Meshtastic LoRa radios over local Wi-Fi: send text, status and location without cellular service or internet. A properly configured external radio is required. Offline tools require the relevant content to be saved in advance. Alerts, community reports, online maps and chat need internet. Family status is not automatic live tracking. This app does not replace official warnings or emergency services. Questions or suggestions? Send me a private message in the app chat. I usually respond the same day. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://goldapps.de/datenschutz/ CONNECT FAMILY & CLOUD • Your own account with email, a password of at least eight characters and email verification. Create a family or accept an invitation. • Choose to share supplies, profiles, status, contacts, home plans, saved GPS trails and selected documents. Optional automatic sync while the app is open and online; downloaded shared content remains available offline. • Separate personal cloud backup preserves existing local data. Offline map files stay on your phone. Health information is uploaded only with explicit consent.

Screenshots

BoatAlarm4 screens
Blackout Prepper4 screens

Verdict

The call

The clearest difference is ads: BoatAlarm at none against Blackout Prepper's shown. BoatAlarm also leads on iOS requirement (15.0 vs 17.6). Blackout Prepper's advantage is update cadence (every 2 days vs every 6 weeks). On price, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BoatAlarm sells 4 in-app purchases, starting at $2.99 per month and Blackout Prepper sells 9 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BoatAlarm ships an update every 6 weeks, Blackout Prepper every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 5 level
BoatAlarm versus Blackout Prepper: the parameters behind the verdict, then further details
ParameterBoatAlarmBlackout Prepper
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size40 MB293 MB
Age rating4+17+
DeveloperLobuwin Solutions UG (haftungsbeschränkt)christian kohler

In-app purchases

4 purchases

BoatAlarm

Subscriptions4
  • BoatAlarm Premium 1 Monat$2.991 Month
  • BoatAlarm Premium Monthly$3.991 Month
  • BoatAlarm Premium 1 Jahr$9.991 Year
Show 1 more
  • BoatAlarm Premium Annual$11.991 Year
9 purchases

Blackout Prepper

Subscriptions4
  • Zugang – monatlich$0.991 Month
  • Zugang - monatlich$2.991 Month
  • Zugang – jährlich$8.991 Year
Show 1 more
  • Zugang - jährlich$12.991 Year
One-time5
  • Werbung dauerhaft entfernen$4.99
  • Blackout Prepper Lifetime$8.99
  • Blackout Prepper Lifetime$12.99
Show 2 more
  • Blackout Prepper Lifetime$22.99
  • Lifetime access$24.99

Questions

Is BoatAlarm free?
BoatAlarm is free to download, with in-app purchases available.
Is Blackout Prepper free?
Blackout Prepper is free to download, with in-app purchases available.
Do BoatAlarm or Blackout Prepper have ads?
Blackout Prepper shows ads; BoatAlarm does not.
Which is updated more often, BoatAlarm or Blackout Prepper?
BoatAlarm ships an update every 6 weeks, and Blackout Prepper every 2 days. Most recently, BoatAlarm was updated on October 25, 2026 and Blackout Prepper on October 28, 2026.

Other comparisons