# Bayes' calculator vs slowDigest

The clearest difference is review sentiment: Bayes' calculator at 100% against slowDigest's 0%. Bayes' calculator also leads on rating (4.0 vs 3.0) and in-app purchases (none vs 3). slowDigest's advantage is update cadence (every 2 weeks vs every 11 months). On price, ratings volume and ads there is nothing between them.

Both are free to download. slowDigest sells 3 in-app purchases, starting at $3.99 per month. Bayes' calculator asks for nothing beyond the download.

Bayes' calculator holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 5 and 2 respectively. Written reviews point the same way: 100% of Bayes' calculator's written reviews are positive against 0% of slowDigest's.

Bayes' calculator ships an update every 11 months, slowDigest every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Bayes' calculator | slowDigest |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (5 ratings)](https://appshunter.io/ios/app/bayes-calculator/id1639652828/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/slowdigest/id6772543845/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 1 MB | 3 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Rosenblum](https://appshunter.io/developer/1639652830) | [Lucas Guillemot](https://appshunter.io/developer/6772543847) |

## What reviewers say

### Bayes' calculator

[App page](https://appshunter.io/ios/app/bayes-calculator/id1639652828)

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:** macOS Compatibility

**In-app purchases:** none


### slowDigest

[App page](https://appshunter.io/ios/app/slowdigest/id6772543845)

This app converts web articles into clean, typeset PDFs for e-readers. It removes ads and clutter, delivering content directly to devices like Kindle and Kobo. Enjoy a distraction-free reading experience optimized for e-ink screens.

**Highlights:** Article to PDF conversion, E-reader optimization, Ad and clutter removal, Supports Kindle, Kobo, reMarkable, Supernote, Boox, Customizable typography, Automatic digest delivery (Pro)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Monthly | $3.99 | per month |
| Pro — Annual | $29.99 | per year |
| Pro — Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Bayes' calculator free?

Bayes' calculator is free to download, with no in-app purchases.

### Is slowDigest free?

slowDigest is free to download, with in-app purchases available.

### Which has better reviews, Bayes' calculator or slowDigest?

Bayes' calculator is rated higher. Bayes' calculator averages 4.0 out of 5 from 5 ratings, while slowDigest averages 3.0 from 2 ratings.

### Do Bayes' calculator or slowDigest have ads?

Neither Bayes' calculator nor slowDigest shows ads.

### Which is updated more often, Bayes' calculator or slowDigest?

Bayes' calculator ships an update every 11 months, and slowDigest every 2 weeks. Most recently, Bayes' calculator was updated on November 3, 2026 and slowDigest on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*