Wallpaper Maker vs Bosai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Wallpaper Maker
Design unique lock screen wallpapers with custom borders, live animations, and smart notch adaptation. Easily position widgets and transform any photo into a professional-looking background. Access a vast library of templates and creative tools for personalized device aesthetics.
- Smart Notch Adaptation
- Widget-Ready Design
- Custom Borders & Dock Customization
- Live Animations
- DIY Lock Screen Creation
- 100+ Creative Templates
- HD Export
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Create wallpapers from your own photos. Add screen borders and Dynamic Island decorations, make matching wallpapers for two, or turn several photos into a Live Photo. FEATURES • Preview the notch, Dynamic Island, rounded corners and layout before saving. • Edit photos with colors, gradients, filters, calendars and decorative widgets. • Make Live Photo wallpapers from several photos; set the cover, crop, order, transitions and duration. • Create matching couple wallpapers with paired left and right designs. • Rotate wallpapers with iOS Shortcuts and Personal Automation, by sunrise, sunset or time. • Export HD wallpapers to Photos or share them; iPad wallpaper exports are also supported. Decorations are part of the exported wallpaper. Export size follows the selected device model; image detail also depends on your source photo. Live Photo playback depends on iOS and the wallpaper settings. PrettyScreen Pro Unlock premium styles and materials, remove ads and watermarks, and export HD wallpapers without limits. Some materials feature artwork by designer Hideaki Nakatani (@heyeased). Subscriptions Monthly and annual plans are charged to your iTunes account after confirmation. Auto-renewal can be disabled in Account Settings. Purchasing a subscription during a free trial forfeits the remaining trial period. Privacy Policy: https://app.mockmemo.com/apps/perfect-wallpaper/privacy/ Terms of Service: https://app.mockmemo.com/apps/perfect-wallpaper/terms/
Bosai
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"This home can last 4.5 more days." — Bosai shows your household's survival days at a glance, then helps you extend them, one small step at a time. It turns Japan's everyday preparedness know-how — household-based stockpile calculation and the "rolling stock" method — into a daily routine for ordinary families. WHAT BOSAI SOLVES ◆ "I don't know what to stockpile, or how much." Most emergency checklists are one-size-fits-all — "3 days per person" and little more. Bosai calculates the required amounts of about 70 items — water, food, toilet supplies, daily essentials — personalized to your family's size, ages, and home type. ◆ "My supplies always expire and go to waste." An expiry alert alone still ends with food in the trash. Bosai builds the whole rolling-stock cycle into the app: expiry approaching → use it in a regular meal → restock on your next grocery run. Stockpiling becomes part of everyday shopping, not a special event. ◆ "Prepper apps feel like they're made for someone else." No bunkers, no survivalist gear lists. Bosai follows the Japanese approach — prepare as an extension of daily life, with items from your ordinary supermarket. It's designed for regular families. ◆ "What if the network is down when disaster strikes?" Every feature works fully offline. All articles are stored on your device. During a blackout or with no signal, Bosai just opens and works. AT THE CENTER: YOUR SURVIVAL DAYS The home screen shows in one big number how many days your family could get by on what you have now. The target adapts to your region (e.g., 2 weeks for the U.S. West Coast), and Bosai suggests exactly one "next move" to raise your score — so you never face an overwhelming to-do list. KEY FEATURES • Automatic needs calculation from your household profile (about 70 items) • Cycle: expiry notifications plus a restock list • Go-bag checklist with a twice-a-year inspection reminder • Family emergency memo (evacuation sites, meeting points, contacts) • Learn: 15 original articles on Japan's practical know-how — the disaster toilet problem, sheltering at home, securing furniture, and more • Presets for 10 regions, including the U.S. West Coast, Japan, Taiwan, Indonesia, the Philippines, Turkey, Latin America, and Brazil HOW BOSAI IS DIFFERENT • Personalized calculation from your household — not a one-size-fits-all list • A use-and-restock cycle — not just an inventory with expiry alerts • Built for ordinary families, not survivalists • Works fully offline; no account, no ads. Your data stays on your device (and in your own iCloud if you share with family) — never on external servers BOSAI PREMIUM (FAMILY SHARING) One subscription covers the whole family: invite members and share and edit your stockpile list together via iCloud. Monthly and yearly plans. All core features are free. AVAILABLE IN 9 LANGUAGES Japanese, English, Traditional Chinese, Simplified Chinese, Indonesian, Filipino, Turkish, Spanish, and Portuguese. Preparedness isn't a one-time effort — it's a habit. Bosai helps you take the first step and keep going. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Bosai at none against Wallpaper Maker's shown. Bosai also leads on update cadence (every 3 weeks vs every 3 months) and iOS requirement (17.0 vs 27.0). 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
Both are free to download. Wallpaper Maker sells 3 in-app purchases, starting at $0.99 per month and Bosai sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Wallpaper Maker ships an update every 3 months, Bosai every 3 weeks. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.
| Parameter | Wallpaper Maker | Bosai |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (127 ratings) — better | — |
| Positive reviews | 76.6% of reviews | — |
| Number of ratings | 127 — better | — |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 27.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 玉伶 杨 | SUGURU KASEBE |
Bugs and requests
Wallpaper Maker
Reported bugs
10 issues- OS update issues with icon reflection
- Pop-ups and UI lag
- Cannot delete app
- Wallpaper size is wrong
- Border missing in final image on new iPhones
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- Pendant color is not white, shows lock icon
- VIP features locked after update
- Output is always empty
- Top white color of pendant is slightly different
- App crashes during adjustment
Requested features
10 requests- More options like website
- Ability to create arts like website
- Hide dock option
- Minimalist app icons
- 3D border option
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- More Lock Screen options
- Share creations feature
- Support for iOS 14 widgets
- Support for iPhone 12 models
- Add back mode without starting over
Bosai
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Wallpaper Maker
- Pro Feature Month$0.991 Month
- Pro Feature Year$2.991 Year
- Pro Feature Forever$7.99
Bosai
- Monthly Plan$2.991 Month
- Yearly Plan$29.991 Year







