# LockWhisper vs Prism

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.

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.

## The numbers

| Metric | LockWhisper | Prism |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Freemium | — |
| Size | 23 MB | 35 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nevv Atlantis LLC](https://appshunter.io/developer/1785977795) | [Trajectory Labs, LLC](https://appshunter.io/developer/1871911403) |

## What reviewers say

### LockWhisper

[App page](https://appshunter.io/ios/app/lockwhisper/id6739545636)

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.

**Highlights:** 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

**Features:** Family Sharing, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip $1 | $0.99 | one-time |
| Tip $3 | $2.99 | one-time |
| LockWhisper Pro | $4.99 | one-time |
| Tip $5 | $4.99 | one-time |


### Prism

[App page](https://appshunter.io/ios/app/prism-focus-task-manager/id6761664849)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is LockWhisper free?

LockWhisper is free to download, with in-app purchases available.

### Is Prism free?

Prism is free to download, with no in-app purchases.

### Do LockWhisper or Prism have ads?

Neither LockWhisper nor Prism shows ads.

### Which is updated more often, LockWhisper or Prism?

LockWhisper ships an update every 3 weeks, and Prism every 3 weeks. Most recently, LockWhisper was updated on October 6, 2026 and Prism on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*