PrepNote vs Disaster Prep & Stockpile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrepNote
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- Start preparing for disasters right now! "PrepNote" is an app that allows you to manage emergency supplies and stockpiles needed during disasters easily and efficiently. I wanted a way to manage disaster items with just a few taps and ensure that food and drinks do not pass their expiration dates, even for someone as lazy as me. That's why I created this app. With just a few taps, you can list essential items and manage expiration dates and storage locations. In the premium version, you can use expiration date filters and notification features to prevent your supplies from expiring. - Main Features ・Easy stock registration with simple operations: Using a straightforward interface, you can easily register emergency supplies and food items needed for your household. Manage quantities and detailed information as well. ・Tag and storage location management: Assign tags to each item for easy search and organization. Specify storage locations to quickly find what you need in an emergency. ・User-friendly checklist feature: Provides a default checklist for emergency supplies. You can add or remove items to create a customized list. ・More convenience with premium features: Remove ads for a cleaner screen. Use expiration date filters and notification features to prevent your supplies from expiring. - Features ・Data is stored in local storage, allowing use even offline, providing peace of mind during disasters. ・We ensure the safety of your data by performing automatic backups when items are updated. ・The notification feature available with the premium version allows you to turn notifications on/off and change notification times. - Recommended for ・Those who want to protect their family's safety with an intuitive and easy-to-use app. ・Those who want to manage emergency supplies and stockpiles simply. ・Those who want to receive alerts before expiration dates. ・Those who want to streamline daily stock management.
Disaster Prep & Stockpile
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Wondering what disaster supplies to keep and how much is enough? Sonamet auto-generates your personalized emergency stockpile checklist in 10 seconds based on your family size. Track expiration dates, inventory, and storage spots all in one place—no account registration needed, ready to use immediately. Sonamet is a disaster preparedness and pantry inventory tracker for everyday life. Manage home stockpiles and emergency grab-and-go bags (bug-out bags) separately to clearly see what you need, what is ready, and what is expiring. Core features work offline, keeping your checklists and emergency guides accessible even during network outages. 【Recommended For】 - Unsure what supplies or how much water/food to store - Frequently let emergency foods and drinks expire - Want to manage home stockpiles and bug-out bags separately - Quickly locate designated shelters near home or workplace - Forget where emergency items are stored at home - Worried if your emergency backpack is too heavy to carry - Practice rolling stock replenishment for groceries and essentials 【Key Features of Sonamet】 ▼ 10-Second Automated Stockpile Calculator Enter family members (adults, kids, infants, seniors) and prep days to auto-calculate recommended water (3L/person/day), meals, and sanitation supplies. Start prepping right away without researching guidelines from scratch. ▼ Disaster Shelter Map Quickly find designated emergency evacuation shelters on an interactive map using official geospatial open data. Search shelters near your current location or look up specific addresses and facility names. Save important places like home or office as "My Locations" for 1-tap shelter lookup. Works with offline cache; location data stays on-device for privacy. ▼ Dual Tracking: Home Stockpiles & Grab-and-Go Bags Separately manage home survival stockpiles and emergency evacuation bags. Interactive checklists show packed items and shortages at a glance. ▼ Expiry Date & Low-Stock Alerts Get notified before food, water, medicine, or batteries expire. Alerts also warn you when stock drops below minimum thresholds so you never run out. ▼ Fast Barcode Scanning & Item Lookup Scan barcodes on groceries and household goods to register items in seconds. Free tier includes 50 initial scans plus 5 daily scans; unlimited with Pro. ▼ Auto-Add Expired Items to Shopping List Expired items automatically move to your shopping list for seamless rolling stock replenishment. Reorder missing supplies online with one tap. ▼ Photo Logs & Storage Locations Attach photos and exact storage spots (e.g., "Kitchen Cabinet") to items. Know what you have and where to find it. ▼ Bag Weight Calculator Automatically calculates total weight of your grab-and-go bag with visual gauges to ensure safe carrying capacity. ▼ Offline Emergency Guides & Manuals Download official emergency manuals and view custom PDF guides inside the app without an internet connection. ▼ No Sign-up & Full Offline Support Start prepping immediately without creating an account. Core checklists, inventory, and cached map data work offline. 【Other Useful Features】 - Official open-data shelter map & facility search - "My Locations" bookmarking for home and workplace - Track quantity, expiry date, weight, photo, and notes - Multi-language: English, Japanese, Chinese, Spanish, Indonesian, Filipino 【Sonamet Pro】 - Unlimited stockpile sets (Free: up to 2 sets) - Unlimited barcode scanning - Automatic iCloud sync across iOS devices - Export checklists to PDF - Dedicated dog and cat pet supply checklists - Split bag management (individual bag per family member) - Custom categories, inventory analytics & ad-free experience Disaster prep is not a one-time task. Stay prepared, prevent waste, and protect your loved ones with Sonamet. 【Terms of Use】 https://sonamet.web.app/terms_en.html 【Privacy Policy】 https://sonamet.web.app/privacy_en.html
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Verdict
The clearest difference is update cadence: Disaster Prep & Stockpile at every 9 days against PrepNote's every 7 months. 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
Both are free to download. PrepNote sells 1 one-off in-app purchase and Disaster Prep & Stockpile sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
PrepNote ships an update every 7 months, Disaster Prep & Stockpile every 9 days. The most recent releases landed on October 2, 2026 and October 18, 2026 respectively.
| Parameter | PrepNote | Disaster Prep & Stockpile |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 9 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.5 | 16.4 — better |
| Further details — not scored | ||
| Size | 7 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | Eri Tominaga | Jimpei Negishi |
In-app purchases
PrepNote
- Premium Features$1.99
Disaster Prep & Stockpile
- 月額プラン7 Days trial$1.991 Month
- 年額プラン7 Days trial$14.991 Year
Questions
Is PrepNote free?
Is Disaster Prep & Stockpile free?
Do PrepNote or Disaster Prep & Stockpile have ads?
Which is updated more often, PrepNote or Disaster Prep & Stockpile?
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