ProvidentPrep vs Custos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ProvidentPrep
This app helps you build and manage your family's food storage and emergency preparedness. Track inventory, set goals, and receive rotation reminders to ensure your supplies are always fresh and ready.
- Food storage organization by category
- Expiration tracking and rotation reminders
- Barcode scanning for item addition
- 72-hour kit checklist
- Progress tracking towards supply goals
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Provident Prep helps you build and manage your family's food storage and emergency preparedness — one step at a time. Whether you're just getting started or fine-tuning a year's supply, Provident Prep gives you the tools to track what you have, know when to rotate it, and stay ready for whatever comes. **FOOD STORAGE TRACKING** Organize your food storage by category — grains, legumes, fats, dairy, and more. See at a glance what you have, how much, and when it expires. Set goals and track your progress toward a 3-month or 1-year supply. **BARCODE SCANNING** Add items instantly by scanning barcodes. Provident Prep recognizes both standard grocery products and LDS Home Storage Center items, so you can build your inventory without tedious manual entry. **72-HOUR KIT CHECKLIST** Make sure your emergency kit is truly ready when you need it. Work through a comprehensive checklist of essential items and track your completion progress — so you can face any emergency with confidence. **ROTATION REMINDERS** Stop wasting food to expiration. Provident Prep reminds you when items are coming due so you can rotate your stock and keep your supply fresh and effective. Provident Prep is completely free — no subscriptions, no ads, no purchases required. Built with love to help families live the principle of self-reliance.
Custos
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What do you do when power, internet, and cell service all fail at once? Custos is your offline companion built for exactly that moment. An app that needs no internet — because it has to work when nothing else does. Unlike any other emergency app: 100% offline, no cloud, no servers, no dependencies. WHY CUSTOS? In a blackout, flood, or earthquake, you don't just lose comfort — you lose access to every piece of information you rely on. Where's the nearest hospital? How do I treat a burn? How do I purify water? How do I survive 72 hours without power? Custos has the answers. Already installed, already there. WHAT YOU GET: ▸ CRISIS SCENARIOS THAT GUIDE YOU THROUGH THE WORST 16 real-world emergencies (blackout, flooding, earthquake, storm, wildfire, pandemic, chemical spill, heat wave, evacuation, and more). Each scenario in 4 phases: what to do IMMEDIATELY, what to do in 24 hours, what to do long-term — and how to be better prepared next time. ▸ FIRST AID THAT SAVES LIVES 46 emergency topics with clear step-by-step instructions: CPR, heart attack, shock, burns, poisoning, fractures, stroke, crush syndrome, pediatric emergencies. Triage decision tree for mass casualty events. Help right when every second matters. ▸ SURVIVAL KNOWLEDGE THAT MAKES YOU INDEPENDENT 45 topics from crisis research and survival training: water purification, fire making, knots, Morse code, weather reading, navigation without GPS, backup power (solar, generator, EV), CBRN protection. Knowledge you can't find compiled anywhere else. ▸ CHECKLISTS THAT MAKE YOUR HOME RESILIENT 28 ready-made lists for emergency bag, pantry, first aid kit, document folder. Scales to your household size. You know exactly what you need — and what's still missing. ▸ OFFLINE MAPS WITH GPS Download maps for your region — works without internet. GPS works without cell service. Always find the nearest safe location: hospital, police, pharmacy, shelter. ▸ MEDICATION DATABASE Scan barcodes of your medications offline — 1.28 million entries in the German PZN database. Custos instantly shows active ingredient, dosage, expiration. Manages your home pharmacy with expiry alerts. WHO IS IT FOR? Parents protecting their family. Seniors living alone. Hikers and campers. People in regions with natural hazards. Anyone who doesn't want to find out they're unprepared during the actual emergency. PRIVACY FIRST No cloud. No tracking. No ads. Your data stays on your device. No account required. OPTIONAL PREMIUM Monthly €2.49 · Yearly €14.99 · Lifetime €24.99 one-time. Free: 3 scenarios, first aid, emergency call, basic checklists. Premium: All 16 scenarios, offline maps, inventory tracking, family profiles, PDF export. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms & Privacy: https://holzbucht.de/pages/apple
Screenshots
Verdict
The clearest difference is in-app purchases: ProvidentPrep at none against Custos's 3. ProvidentPrep also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement 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. Custos sells 3 in-app purchases, starting at $1.99 per month. ProvidentPrep asks for nothing beyond the download.
ProvidentPrep ships an update every 3 days, Custos fortnightly. The most recent releases landed on September 25, 2026 and October 11, 2026 respectively.
| Parameter | ProvidentPrep | Custos |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 168 MB |
| Age rating | 4+ | 12+ |
| Developer | Blake Price | Emil Deak |
In-app purchases
ProvidentPrep
No in-app purchases
Custos
- Custos Premium Monthly$1.991 Month
- Custos Premium Jährlich$12.991 Year
- Custos Premium Lifetime$22.99









