Comparison

Bayes' calculator vs Private Notes (Nostr)

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

Head to head
About

Bayes' calculator

This application provides a straightforward tool for performing calculations based on Bayes' Theorem. It is designed for users who need to apply this statistical concept in their work or studies. The app offers a simple interface for inputting probabilities and obtaining results.

Highlights
  • Bayes' Theorem calculations
  • Probability input
  • Result display
  • Simple interface
Features
Read full description

This is an app that lets you calculate using bayes theorem

About

Private Notes (Nostr)

Features
Read full description

Private Notes is an encrypted password manager and secure notes app built on the Nostr protocol — a private alternative to cloud-based managers like 1Password or Bitwarden. Every password, login, and note is encrypted on your device before it ever leaves — no company, no server, no cloud provider can read it. Only you, with your nsec (and optionally a PIN), hold the key. Your password vault: Store logins — username, password, website, and notes — right where you need them. Generate strong passwords two ways: memorable "by words" phrases or fully random characters, with strength shown as you type. Copy any field in one tap, and keep everything organized with folders and labels. Your notes, still yours: Markdown notes, folders, and labels live in the same encrypted vault as your logins. Recovery codes, travel plans, reading lists — anything you'd trust to a notes app, without trusting a company with the plaintext. Built on real cryptography, not a promise: Your identity is a cryptographic key pair (nsec/npub), not an email and password. Everything is encrypted and signed locally before it's published. A PIN adds a second layer of encryption on top of your keychain-protected key — even someone with your nsec can't read your vault without it. The PIN is never written to disk. There's no "forgot password" flow, because there's no password to reset — and no backdoor. Back up your nsec somewhere safe; without it, nothing can be recovered. Sync without a company in the middle: Private Notes syncs through Nostr relays — servers that store your encrypted vault — and you choose which ones to use. Pick public relays, run your own, or use several at once for redundancy: if one goes offline, your vault is still there on the others. No single company holds your data or controls your access. Available now on iOS and macOS. Private Notes is built for: Anyone switching from a cloud password manager who wants a vault that's properly end-to-end encrypted Privacy-conscious users who want full control over their passwords and notes Nostr enthusiasts who want one secure identity across Nostr apps Anyone tired of apps that mine or sell their data Download Private Notes today — your passwords and notes: encrypted, decentralized, and always yours.

Screenshots

Bayes' calculator2 screens
Private Notes (Nostr)4 screens

Verdict

The call

The clearest difference is ads: Bayes' calculator at none against Private Notes (Nostr)'s shown. Private Notes (Nostr)'s advantage is update cadence (fortnightly vs every 11 months). On price, in-app purchases, device support 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Bayes' calculator ships an update every 11 months, Private Notes (Nostr) fortnightly. The most recent releases landed on October 23, 2026 and October 17, 2026 respectively.

Scorecard2 real differences · 8 level
Bayes' calculator versus Private Notes (Nostr): the parameters behind the verdict, then further details
ParameterBayes' calculatorPrivate Notes (Nostr)
PriceFreeFree
Rating4.0 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 11 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.5 — better15.6
Further details — not scored
Size1 MB33 MB
Age rating4+4+
DeveloperAndrew Rosenblumalexey popkov

In-app purchases

None

Bayes' calculator

No in-app purchases

None

Private Notes (Nostr)

No in-app purchases

Questions

Is Bayes' calculator free?
Bayes' calculator is free to download, with no in-app purchases.
Is Private Notes (Nostr) free?
Private Notes (Nostr) is free to download, with no in-app purchases.
Do Bayes' calculator or Private Notes (Nostr) have ads?
Private Notes (Nostr) shows ads; Bayes' calculator does not.
Which is updated more often, Bayes' calculator or Private Notes (Nostr)?
Bayes' calculator ships an update every 11 months, and Private Notes (Nostr) fortnightly. Most recently, Bayes' calculator was updated on October 23, 2026 and Private Notes (Nostr) on October 17, 2026.

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