Comparison

Prelim360 vs Disaster Diaries

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

Head to head

Prelim360

For NFIP Preliminary Reports

About

Prelim360

Features

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Prelim360.ai helps adjusters complete and submit NFIP Preliminary Reports directly from the field using a simple phone app." • Save time • Reduce office work • Get more claims Complete Reports On-Site Fill out NFIP Preliminary Reports and Advance Payment Request Forms Flexible Submission Options Easily input required information using your iPhone with a user-friendly, easy to use interface. Photo Integration Seamlessly capture, label, and attach photos directly within the app for efficient integration. FCN Card Attachment Seamlessly include your FCN card with submissions for quick, secure, and compliant report processing.

About

Disaster Diaries

Features

Read full description

Disaster Diaries serves as a diary for disasters nearby.

Screenshots

Prelim3604 screens

Disaster Diaries4 screens

Verdict

The call

The clearest difference is update cadence: Disaster Diaries at weekly against Prelim360's every 2 months. Disaster Diaries also leads on iOS requirement (12.0 vs 15.6). On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Prelim360 ships an update every 2 months, Disaster Diaries weekly. The most recent releases landed on September 9, 2026 and September 5, 2026 respectively.

Scorecard2 real differences · 4 level

Prelim360 versus Disaster Diaries: the parameters behind the verdict, then further details
Parameter	Prelim360	Disaster Diaries
Price	Free	Free
Update frequency	Every 2 months	Weekly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.6	12.0 — better
Further details — not scored
Size	43 MB	25 MB
Age rating	4+	17+
Developer	Alcazar, LLC	Build SOS Inc

In-app purchases

None

Prelim360

No in-app purchases

None

Disaster Diaries

No in-app purchases

Questions

Is Prelim360 free?

Prelim360 is free to download, with no in-app purchases.

Is Disaster Diaries free?

Disaster Diaries is free to download, with no in-app purchases.

Do Prelim360 or Disaster Diaries have ads?

Neither Prelim360 nor Disaster Diaries shows ads.

Which is updated more often, Prelim360 or Disaster Diaries?

Prelim360 ships an update every 2 months, and Disaster Diaries weekly. Most recently, Prelim360 was updated on September 9, 2026 and Disaster Diaries on September 5, 2026.