Bayes' calculator vs Private Notes (Nostr)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Bayes' Theorem calculations
- Probability input
- Result display
- Simple interface
Read full descriptionHide full description
This is an app that lets you calculate using bayes theorem
Private Notes (Nostr)
Read full descriptionHide 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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
| Parameter | Bayes' calculator | Private Notes (Nostr) |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 11 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.5 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Rosenblum | alexey popkov |
In-app purchases
Bayes' calculator
No in-app purchases
Private Notes (Nostr)
No in-app purchases
Questions
Is Bayes' calculator free?
Is Private Notes (Nostr) free?
Do Bayes' calculator or Private Notes (Nostr) have ads?
Which is updated more often, Bayes' calculator or Private Notes (Nostr)?
Other comparisons















