LockWhisper vs Prism
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
LockWhisper
This app provides a secure, offline vault for all your sensitive data, using military-grade encryption. It offers features like password management, encrypted notes, secure browsing, and dual-password protection for enhanced privacy. Your data remains entirely on your device, with no cloud sync or tracking.
- Offline security and encryption
- Dual-password system for plausible deniability
- AES-256 encryption for all data
- Password manager with AutoFill
- Encrypted notes and journal editor
- Secure browser and QR code scanner
- Cross-device sync via peer-to-peer
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LockWhisper is a private, offline-first security vault for iPhone, iPad, and Mac. It keeps sensitive personal data encrypted on your device without cloud accounts, analytics, tracking, or LockWhisper servers handling your vault contents. ONE PRIVATE PLACE Store passwords, 2FA codes, PGP keys, encrypted notes, journals, plans, files, photos, videos, voice recordings, contacts, cards, identity records, travel documents, vehicle records, saved links, emergency information, habits, and private tasks. LockWhisper also includes a secure browser, secure clipboard, QR and scanner tools, photo metadata cleaning, encrypted search, favorites, import and export tools, and device-to-device sync. PRIVATE BY DESIGN Every supported module is built around local encryption and device-controlled storage. Your vault stays on your device unless you choose to export it or sync supported data directly to another trusted device. A DASHBOARD YOU CONTROL Use daily privacy tips, Quick Actions, Security Snapshot, backup health, favorites, and quick modules to reach what matters. Choose layout presets, change visual density, group modules, resize widgets, and decide which cards appear. REAL AND DECOY VAULTS LockWhisper includes an optional fake password system. Your real password opens your private vault. A separate fake password opens a decoy vault with separate data for plausible deniability. SECURITY TOOLS YOU CAN USE Security Center summarizes password health, authenticator coverage, encryption-key rotation, backup readiness, recovery status, and other actionable findings. Optional auto-destruct, recovery tools, key backup, jailbreak and debug checks, and YubiKey-assisted workflows provide additional protection. PRIVATE DEVICE SYNC Sync supported data directly between trusted devices over encrypted peer-to-peer connections. No LockWhisper account and no central cloud database for your vault contents. ONE PRICE, NOT A SUBSCRIPTION Use core privacy tools free. Upgrade to Pro with a one-time purchase for advanced modules and premium security features. LockWhisper brings passwords, private writing, encrypted files, 2FA, PGP, secure media, planning, scanner tools, and vault records together while keeping personal data under your control.
Prism
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Most task apps make you do more. Prism helps you do less โ better. Prism is built on a simple idea: you don't have one to-do list, you have several โ work, personal, that side project โ and they shouldn't all live in the same pile. So Prism organizes everything into Task Lists, and gives each one its own Focus mode. TASK LISTS โ Create a list for each part of your life. You always have a Default list to start with, and can add up to 8 total. Rename them, reorder your tasks with a drag, and move a task from one list to another whenever priorities shift. FOCUS MODE โ Star the handful of tasks that actually matter right now, then flip Focus mode on to see just those. Each list has its own Focus limit (1โ10), so "focused" means something different for a big project list versus a quick errands list. RECURRING LISTS โ For the stuff you repeat โ a weekly packing list, recurring chores โ check items off as you go, then tap Reset to start the next cycle fresh. Recurring lists don't clutter your Log with the same items week after week. LOG โ A record of what you've actually accomplished. Browse your completion history, restore a task if you archived it by mistake, and see your weekly momentum at a glance. KEY FEATURES โข Task Lists โ Organize tasks by area of your life, not one giant pile. Up to 8 lists, each with its own type and Focus limit. โข Focus mode โ Star what matters, then filter down to just that. No auto-magic guessing what you should work on โ you decide, per list. โข Recurring checklists โ Built for routines you repeat. Check off, reset, repeat. โข Smart capture โ Add multiple tasks at once by separating them with commas, "and," or line breaks. Prism splits them instantly. โข Due dates & reminders โ Pin deadlines to tasks and set push notification reminders up to 30 days in advance. โข Drag-to-reorder โ Reprioritize any list with a long-press drag, in or out of Focus mode. โข Weekly chart โ See how many tasks you've completed each day over the last week. Progress you can actually feel. โข Multiple profiles โ Switch between entirely separate sets of task lists for different areas of your life, without mixing them together. โข Dark & light modes โ A clean, minimal design that works in any light. Prism is for anyone who ends the day with more on their list than when they started โ and wants that to change. Focus on what matters.
Screenshots
Verdict
The clearest difference is in-app purchases: Prism at none against LockWhisper's 4. On price, update cadence, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. LockWhisper sells 4 one-off in-app purchases. Prism asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | LockWhisper | Prism |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Freemium | โ |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 15.1 โ better |
| Further details โ not scored | ||
| Size | 23 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Nevv Atlantis LLC | Trajectory Labs, LLC |
In-app purchases
LockWhisper
- Tip $1$0.99
- Tip $3$2.99
- LockWhisper Pro$4.99
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- Tip $5$4.99
Prism
No in-app purchases









