Comparison

Secrets vs Simple Letter

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

Head to head
About

Secrets

Securely store and manage all your sensitive information, including passwords, credit card details, and bank information. Generate strong new passwords, use auto-fill for quick logins, and sync data across devices with robust encryption.

Highlights
  • Store passwords, credit cards, and bank details
  • Generate secure, private passwords
  • One-time passcode generation for 2FA
  • Import from other password managers
  • iCloud syncing across devices
  • Browser integration for auto-fill
  • Biometric and passphrase protection
Features
Read full description

Secrets is an app for storing all of your passwords and anything else you want to keep … secret! There are lots of things in our daily lives that we don’t want other people to know like credit card details, bank details, and of course, passwords. Secrets can protect all of those things and more in an app that’s easy to use but still secured by strong encryption and advanced sync technology. Because we think that your secrets should be yours and yours alone, your passwords and information are never synced with our servers. If you choose to sync your information between devices it will be encrypted and securely saved in iCloud. Secrets uses strong 256-bit encryption and locks your information behind biometric (Face ID or Touch ID) and alphanumeric (a strong and unique passphrase) protection. Despite that, Secrets is full of features that you’re going to love using and will make using your passwords and other information a breeze. FEATURES INCLUDE: • Store all of your passwords, passkeys, credit cards, bank details, and other information so that it’s always there when you need it. • Create reate new, secure, and private passwords for new apps and services. No more trying to come up with a unique password yourself. • Generate one-time passcodes for apps and services that offer two-factor authentication. • Get all of your passwords and information into Secrets with ease — import from 1Password, LastPass, and other popular services or import using a CSV file. • Take your passwords with you. Secrets supports iCloud syncing so your information is always available and up-to-date. • Access your passwords when you need them — Secrets for iPhone and iPad securely integrates with browsers on Windows and Linux so your passwords are never more than a few taps away. • Use password AutoFill to quickly enter usernames and passwords on your Apple devices. PRIVATE AND SECURE We don't have access to your information, including usernames and passwords. Not even in encrypted form! Synced information doesn’t use our servers and nothing leaves your device or iCloud (when syncing is enabled). Information is stored using modern cryptographic algorithms and 256-bit encryption. Use Touch ID or Face ID to unlock Secrets or set up a strong passphrase — or both! You can even use your Apple Watch to unlock Secrets on the Mac. Automatic locking ensures that Secrets keeps all of your information locked away even if your phone/computer is stolen. PRICING Secrets is a free download and there are one-time in-app purchases available to unlock additional features. • Create, edit, delete, and import items after a 7-day free trial. • Unlock shared vaults so you can invite someone else to access your saved items. • A bundle that includes both in-app purchases for a single payment. Alternatively, Secrets is also available as a monthly or yearly subscription. Whether you opt for a one-time purchase or a subscription, it will be valid on all platforms: iOS, iPadOS and macOS. Learn more about Secrets at https://secrets.app/ and get in touch with any questions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://secrets.app/privacy/

About

Simple Letter

Features
Read full description

Simple Letter helps you to create clean, well-formatted letters on iPhone, iPad and Apple Silicon Mac. Write personal or professional letters with a clear structure for sender, addressee, subject, greeting, main text, closing and signature. Customize fonts, font size, spacing, sender style, alignment and print margins, then print or export using the system print flow. Simple Letter also includes Apple Intelligence features on supported devices to help you generate draft text and improve existing letters. All processing happens locally on your device, helping to keep your data secure. Simple Letter Pro unlocks advanced tools for users who write letters regularly, including reusable templates, multiple sender profiles, multiple signatures, unlimited letter length and AI rewrite tools. Key Features: • Create formal letters with a simple, guided layout • Works on iPhone, iPad and Apple Silicon Mac • Customize sender style, sender alignment, fonts, font size, spacing and print margins • Print or export through the system print dialog • Save, reopen, search, sort and duplicate letters • Add a handwritten signature • Use Apple Intelligence on supported devices to generate and improve letter text • Keyboard shortcuts on iPad and Mac Simple Letter Pro: • Unlimited main-text length • Multiple sender profiles • Multiple saved signatures • Built-in starter templates for common letter scenarios • AI rewrite tools for tone changes and refinement • Rewrite in another language on supported devices

Screenshots

Secrets4 screens
Simple Letter3 screens

Verdict

The call

The clearest difference is update cadence: Simple Letter at every 2 weeks against Secrets's every 4 weeks. Secrets's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases 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

Both are free to download. Secrets sells 9 in-app purchases, starting at $2.99 per month and Simple Letter sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Secrets ships an update every 4 weeks, Simple Letter every 2 weeks. The most recent releases landed on September 21, 2026 and August 3, 2026 respectively.

Scorecard3 real differences · 7 level
Secrets versus Simple Letter: the parameters behind the verdict, then further details
ParameterSecretsSimple Letter
PriceFreeFree
Rating4.6 (186 ratings) — better—
Positive reviews61.9% of reviews—
Number of ratings186 — better—
Update frequencyEvery 4 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size67 MB5 MB
Age rating4+9+
DeveloperOuter Corner, Unipessoal LDAWolfram Wacker

Bugs and requests

Secrets

Reported bugs

13 issues
  • Device authorization requests not arriving on pre-approved devices
  • iCloud sync failures and unreliable synchronization
  • App crashes on iPad frequently
  • Extremely slow performance on Intel Mac models
  • Safari extension broken and non-functional
Show 8 more
  • Autofill feature patchy and unreliable
  • Unlock failures preventing password sync
  • Device pairing spinning indefinitely
  • App unable to unlock or set passwords
  • Overlapping text fields on accessibility settings
  • Slow indexing on Mac requiring 10-second waits
  • Migration issues from v3 to v4
  • Laggy password copy screen

Requested features

14 requests
  • Randomized username generation
  • Integration with disposable email services (e.g., addy.io)
  • Authenticator/TOTP built-in support
  • Word list-based password generation
  • Fine-grained punctuation character control
Show 9 more
  • Passwords that can be manually typed
  • Sign-in-with integration (Google, Microsoft)
  • Favicon auto-pull from websites
  • Additional custom fields for entries
  • Cross-platform Windows/Microsoft support
  • Option to hide dock icon
  • Auto-populate passwords in-field on macOS
  • Better accessibility with system font sizing
  • Improved documentation and YouTube tutorials

Simple Letter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

Secrets

Subscriptions2
  • Monthly$2.991 Month
  • Yearly$29.991 Year
One-time7
  • Sharing TrialFree
  • Sharing (Promo)$29.99
  • Sharing$39.99
Show 4 more
  • Editing (Promo)$44.99
  • Upgrade$49.99
  • Editing$59.99
  • Editing + Sharing$79.99
3 purchases

Simple Letter

One-time3
  • Simple Letter Pro$1.99
  • Small Coffee (voluntary tip)$1.99
  • Large Coffee (voluntary tip)$5.99

Questions

Is Secrets free?
Secrets is free to download, with in-app purchases available.
Is Simple Letter free?
Simple Letter is free to download, with in-app purchases available.
Do Secrets or Simple Letter have ads?
Neither Secrets nor Simple Letter shows ads.
Which is updated more often, Secrets or Simple Letter?
Secrets ships an update every 4 weeks, and Simple Letter every 2 weeks. Most recently, Secrets was updated on September 21, 2026 and Simple Letter on August 3, 2026.

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