Comparison

PrepperApp vs OmniDisk Space Check

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

Head to head
About

PrepperApp

Features
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PrepperApp helps you stay calmly prepared for a power cut, a storm, a flood or another emergency. One number shows how many days your household can manage, you make an emergency plan together, and SOS and first aid are always close at hand. TODAY One honest number: this is how many days your water and food will last. The app counts 3 litres of water and 2,000 kcal per person per day and compares that with your government's advice. You see your weakest point and your next step straight away. SUPPLIES Add products by scanning the barcode, photographing a receipt or taking a photo of your shelf. For each category you see what you have, what expires soon and what is past its date. The shopping list helps you fill the gaps. ONE EMERGENCY PLAN FOR THE WHOLE FAMILY Write down what you will do in a power cut, a fire, a flood and other situations. Agree on meeting points, make an evacuation plan and work through the emergency checklists. Share your supplies, emergency plan and family card with your household. With "Are you safe?" you let them know you're fine in one tap. SOS AND FIRST AID One tap on the red SOS bar opens the emergency menu: call the emergency number, share your location, open guided first aid or text your emergency contacts. The app never calls by itself. The CPR timer gives the rhythm with a tick and tells you out loud when to give breaths. The first aid guide, tick bite help and emergency protocols are all in one place. SOS and first aid also work when you're not signed in. OUTDOORS Record your walks and look back at them on the map: your route in gold, the elevation profile, your pace per kilometre and your photos. Keep a trip day by day, with your stops, photos and walks on one map. Prepare a trip with a checklist, the country's emergency number and a reminder, and save country maps offline on your phone. The compass and the way-back arrow work without signal too. LEARN AND THE COACH A learning path of twelve lessons, guides and practice questions help you step by step. The Coach answers questions about your own preparation and always names its source. ON YOUR IPHONE AND APPLE WATCH While you record a walk, distance and time show on your Lock Screen, with Pause and Photo. Widgets for your Home Screen and Lock Screen, search in Spotlight, Siri shortcuts in four languages and Control Center buttons for SOS and Start walk. On your Apple Watch you have your days, a compass, SOS and your emergency contacts on your wrist. YOUR DATA You create a free account with your email address, so your supplies and household move safely to a new phone. Your medical profile, medication and document vault stay on your phone. New: with your own key and recovery code, your emergency plan, supplies, trips and what you share with your household are end-to-end encrypted, so only you and your family can read them. Family chat is end-to-end encrypted and works on all your linked devices. No ads, and our servers are in the EU. FREE, WITH PRO AS AN EXTRA The core of the app is free. Pro adds unlimited supplies, all emergency plan scenarios, the document vault and the Coach's AI help, among other things. You buy Pro once, with no subscription. In English, Dutch, German and Spanish, with government advice for the Netherlands, Belgium, Germany, Spain, the United Kingdom, the United States and Australia. PrepperApp does not replace the emergency services. In acute danger, always call the emergency number.

About

OmniDisk Space Check

Analyze your device's storage to identify and manage photos, videos, and contacts. Reclaim space by finding duplicates, large files, and optimizing media. Ensure your data remains private with on-device analysis.

Highlights
  • Smart storage analysis
  • Duplicate and similar photo detection
  • Large video finding and compression
  • Live Photo optimization
  • Contact organization and backup
  • On-device privacy-first analysis
Features
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Review storage without losing the memories that matter. OmniDisk analyzes your photos, videos, Live Photos, and contacts to show where storage is being used and what you can review. SMART STORAGE ANALYSIS See how much space may be reclaimable and start with the items that have the greatest storage impact. DUPLICATE AND SIMILAR PHOTOS Review grouped photos, keep the best shot, and remove unnecessary copies only after you confirm. LARGE VIDEOS AND COMPRESSION Find videos by size, review their details, and preview the estimated size and potential savings before compression. LIVE PHOTO OPTIMIZATION See how much space the motion portion uses and convert selected Live Photos to still images when motion is no longer needed. CONTACT ORGANIZATION Find duplicate, similar, and incomplete contacts. Back up your contacts before making any selected changes. PRIVACY FIRST Supported media analysis runs locally on your device. Your photos and videos remain under your control. OmniDisk does not automatically clean your device or delete content. You review and confirm every deletion, merge, conversion, or compression action. Privacy Policy: https://www.timerbell.com/views/protocol/privacyPolicy?appTitle=OmniDisk&effectiveDate=2026-07-29 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

PrepperApp4 screens
OmniDisk Space Check4 screens

Verdict

The call

The clearest difference is update cadence: PrepperApp at every 3 days against OmniDisk Space Check's every 2 weeks. OmniDisk Space Check's advantage is iOS requirement (15.0 vs 17.6). 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. PrepperApp sells 1 one-off in-app purchase and OmniDisk Space Check 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

PrepperApp ships an update every 3 days, OmniDisk Space Check every 2 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences Β· 6 level
PrepperApp versus OmniDisk Space Check: the parameters behind the verdict, then further details
ParameterPrepperAppOmniDisk Space Check
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 3 days β€” betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
Monetizationβ€”Free with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Mac β€” better
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size72 MB36 MB
Age rating12+4+
DeveloperMichael Stuut智彬 ζž—

In-app purchases

1 purchases

PrepperApp

One-time1
  • PrepperApp Pro$12.99
9 purchases

OmniDisk Space Check

Subscriptions6
  • OmniDisk Mac Pro Monthly3 Days trial$0.991 Month
  • OmniDisk Mobile Pro Monthly3 Days trial$2.001 Month
  • OmniDisk Mac Pro Yearly3 Days trial$3.991 Year
Show 3 more
  • OmniDisk Mobile Pro Yearly3 Days trial$8.001 Year
  • OmniDisk Pro Monthly$14.991 Month
  • OmniDisk Pro Yearly$49.991 Year
One-time3
  • OmniDisk Mac Pro Lifetime$8.99
  • OmniDisk Mobile Pro Lifetime$19.00
  • OmniDisk Mac Lifetime Pro$39.99

Questions

Is PrepperApp free?
PrepperApp is free to download, with in-app purchases available.
Is OmniDisk Space Check free?
OmniDisk Space Check is free to download, with in-app purchases available.
Do PrepperApp or OmniDisk Space Check have ads?
Neither PrepperApp nor OmniDisk Space Check shows ads.
Which is updated more often, PrepperApp or OmniDisk Space Check?
PrepperApp ships an update every 3 days, and OmniDisk Space Check every 2 weeks. Most recently, PrepperApp was updated on October 24, 2026 and OmniDisk Space Check on October 24, 2026.

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