Report updated Apr 27, 2026

Overview · Full Intel report in progress

Captcha Stash is an established entertainment app that is completely free.

What is Captcha Stash?

Captcha Stash is a local-storage note-taking application that secures sensitive data behind mandatory CAPTCHA verification. By requiring human-only authentication for access, it provides a unique security layer for private information without relying on cloud connectivity or user accounts.

Current Momentum

v1.2

What's New in Version 1.2 Rich Note Types CaptchaStash now stores more than just text. In addition to text notes, you can now save photos, videos, audio recordings, and documents — all protected by the same AES-256-GCM encryption as your text notes. Audio can be recorded directly in the app; photos and videos are imported from your library without requiring permanent photo access; documents can be imported from Files and shared or exported via the system share sheet. 7 New CAPTCHA Challenges Version 1.2 adds seven new CAPTCHA types, bringing the total to eleven: - Emoji Sequence — tap emojis in the correct order - Counting — count objects in a grid - Odd One Out — spot the item that doesn't belong - Word Arithmetic — solve simple word-based math - Analogy — complete the pattern - Clock Reading — read an analogue clock face - Memory — memorise and recall a sequence You can preview and try all 11 types from the Settings screen. Optional Biometric Second Factor Turn on Face ID or Touch ID as a second unlock step in Settings. After a correct CAPTCHA, the app can require a biometric confirmation before granting access — adding a hardware-backed layer of security. Settings explains the trade-offs clearly so you can decide what's right for you. Security Hardening This release brings a full security audit's worth of improvements: - Encryption keys now require the device passcode to be set; they are never backed up to iCloud - Attachments are excluded from iCloud backup and iCloud Keychain sync - The vault re-locks automatically whenever the app leaves the foreground - Failed CAPTCHA attempts now trigger exponential backoff (5 s → 15 s → 30 s → 60 s), and the lockout timer persists across app restarts — force-quitting doesn't reset it - All temporary files are written with Complete File Protection - A confirmation alert is shown before any file is sent to the share sheet About Screen Tap the ⓘ button on the unlock screen to open a full in-app reference covering note types, all CAPTCHA challenges, and a plain-language explanation of CaptchaStash's security architecture.

Competition

Rivals identification in progress

7-Day Rank Pulse 🇺🇸

Entertainment

No ranking data

Rating Pulse 🇺🇸

Gathering signals...

What makes this app unique?

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What Are The Key Features?

Human-Only AuthenticationStandard

Protects notes using visual, math, word, or pattern-based CAPTCHA challenges to prevent bot access.

On-Device StorageStandard

Ensures all encrypted data remains stored locally on the user's device with no cloud uploads.

Self-Destruct MechanismStandard

Automatically wipes all stored notes after a user-configured number of failed access attempts.

Privacy-First DesignStandard

Operates without user accounts, analytics, or data tracking.

How much does it cost?

Free

Analysis in progress, available soon

What do users think recently?

Analysis in progress, available soon

Analysis in progress, available soon

What is the competitive landscape for Captcha Stash?

How's The Entertainment Market?

Market outlook for this category

Available very soon

Strategic analysis coming soon

SWOT, key takeaways & outlook

The outtake for Captcha Stash

Key Takeaways

Captcha Stash differentiates itself by using CAPTCHA-based gatekeeping to secure locally-stored, private notes.

Where Is It Heading?

Trend analysis

Available very soon

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Captcha Stash, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Captcha Stash Intelligence Report.” Updated Apr 27, 2026. https://marlvel.ai/apps/captcha-stash

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