Comparison

Strongbox Pro vs Agentic Inbox

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Strongbox Pro

Securely store and protect all your passwords with one master password. Supports open-source formats and offers advanced security features like biometric unlock, hardware token protection, and cloud syncing.

Highlights
  • Master password protection
  • Biometric unlock (Face ID/Touch ID)
  • Passkey and YubiKey support
  • Military-grade encryption
  • Cloud sync (iCloud, Dropbox, etc.)
  • Password auditing (weak passwords, HIBP check)
  • Secure password generation
Features
Read full description

Strongbox Pro is available here for outright and upfront purchase instead of via an In-App Purchase upgrade. This version of Strongbox is identical to the much loved Strongbox application with all the Pro features and the same regular update schedule. Strongbox is an application for keeping all your passwords safely stored and protected by one master password. Supporting the open source Password Safe and KeePass formats. *** Supports Family Sharing *** *** Features *** - Face ID/Touch ID Unlock for the ultimate in convenience, security and speed. - PIN Code Unlock with a Duress PIN option for those tricky situations. - Passkey support - The latest, most convenient and most secure authentication method (passkeys). - YubiKey protection - secure your databases with a hardware token. - Secure - protected by time tested military grade cryptography. - Private - Isolated In-App attachments viewer for your sensitive documents, photos & videos. - Audit your passwords - Automatically check your database for weak passwords including a 'Have I Been Pwned?' check. - Cloud Support, so you can access your cloud safes using iCloud, Dropbox, OneDrive, Google Drive, WebDAV or SFTP even when offline. Use the built in Files app for many other storage options or store them securely only on your local device. You choose your storage. - Search your entire set of passwords and secrets instantly and powerfully, with deep search. Autocomplete new entries, and auto generate secure passwords. - Compatible - Import/Export by Files app, Email, CSV, iTunes File Sharing or use cloud storage. - Standards compliant - using the time tested Password Safe and KeePass formats so you can import any existing password safe you have. - Features galore - Incredibly configurable password generation including Diceware (XKCD) & regular passwords. - Timed Auto Clear Clipboard. - Entry History. - KeePass Field References, Tags, Custom Icon & FavIcons (including automatic search & download). - Two Factor Authentication codes (TOTP) - QR Code, Steam & Manual. --------------------------------------------------------------------- • Payment will be charged to iTunes Account at confirmation of purchase • Strongbox Privacy Policy may be found here: https://strongboxsafe.com/privacy-policy/ • Strongbox Terms of Use may be found here: https://strongboxsafe.com/terms/

About

Agentic Inbox

Features
Read full description

Agentic Inbox is a native iPhone and iPad email client for the open-source agentic-inbox Cloudflare Worker backend. Point the app at your own Worker deployment, and your mail, credentials, and cache stay only between your device and your Cloudflare account — no third-party mail server in between. REQUIRES YOUR OWN BACKEND This is not a general-purpose client for Gmail, iCloud, or other providers. It connects exclusively to a self-hosted agentic-inbox Worker (github.com/cloudflare/agentic-inbox) that you deploy on your own Cloudflare account, authenticated with a Cloudflare Access service token. Deploy the backend first if you haven't already. FEATURES Mailboxes • List, create, switch, and delete mailboxes across your Worker's allowed domains Inbox • Threaded conversation view per folder • Pull-to-refresh and pagination • Swipe to archive or delete, with undo • Multi-select batch actions: mark read/unread, archive, delete Folders • System folders — Inbox, Sent, Drafts, Archive, Spam, Trash • Custom folders — create, rename, delete Conversations • Expandable message threads • Sanitized HTML rendering with remote-image blocking (no tracking pixels) • Star and read toggles, move to folder, attachment support Compose • New messages, reply, reply-all, forward • Drafts save locally and resume exactly where you left off Search • Search-as-you-type with filters for sender, recipient, subject, date range, read/starred status, and attachments • Removable filter chips, infinite scroll Offline • Local cache with optimistic UI, so recent mail stays readable without a connection Built for iPhone and iPad • Adaptive list-detail layout on iPad • Light and dark theme, all standard orientations PRIVACY Agentic Inbox talks only to the Worker URL you configure. Your Client ID and Client Secret are stored only on your device. No analytics, no ads, no data shared with the developer or any third party. OPEN SOURCE Agentic Inbox is open source under the Apache License 2.0.

Screenshots

Strongbox Pro4 screens
Agentic Inbox4 screens

Verdict

The call

The clearest difference is price: Agentic Inbox at Free against Strongbox Pro's $99.99. Agentic Inbox also leads on in-app purchases (none vs 7). Strongbox Pro's advantage is device support (5 vs 2). On update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Agentic Inbox is free to download; Strongbox Pro costs $99.99 up front. Strongbox Pro sells 7 in-app purchases, starting at $2.99 per month. Agentic Inbox asks for nothing beyond the download.

UpkeepUpdate frequency

Strongbox Pro ships an update every 2 weeks, Agentic Inbox fortnightly. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
Strongbox Pro versus Agentic Inbox: the parameters behind the verdict, then further details
ParameterStrongbox ProAgentic Inbox
Price$99.99Free — better
Rating4.7 (338 ratings) — better—
Positive reviews85.8% of reviews—
Number of ratings338 — better—
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad
Requires iOS15.0 — better16.2
Further details — not scored
Size136 MB41 MB
Age rating4+4+
DeveloperPhoebe Code LimitedSonicstar Solutions Inc

In-app purchases

7 purchases

Strongbox Pro

Subscriptions2
  • Monthly Tip$2.991 Month
  • Annual Tip$19.991 Year
One-time5
  • Little Tip$4.99
  • Small Tip$9.99
  • Medium Tip$19.99
Show 2 more
  • Large Tip$99.99
  • Huge Tip$199.99
None

Agentic Inbox

No in-app purchases

Questions

Is Strongbox Pro free?
Strongbox Pro costs $99.99, and also offers in-app purchases.
Is Agentic Inbox free?
Agentic Inbox is free to download, with no in-app purchases.
Do Strongbox Pro or Agentic Inbox have ads?
Neither Strongbox Pro nor Agentic Inbox shows ads.
Which is updated more often, Strongbox Pro or Agentic Inbox?
Strongbox Pro ships an update every 2 weeks, and Agentic Inbox fortnightly. Most recently, Strongbox Pro was updated on October 15, 2026 and Agentic Inbox on October 10, 2026.

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