# Binomial Distribution PRO vs Bits AI

The clearest difference is price: Bits AI at Free against Binomial Distribution PRO's $1.99. Bits AI also leads on update cadence (every 3 days vs monthly). Binomial Distribution PRO's advantage is in-app purchases (none vs 3) and iOS requirement (15.0 vs 17.6). On ads and device support there is nothing between them.

Bits AI is free to download; Binomial Distribution PRO costs $1.99 up front. Bits AI sells 3 in-app purchases, starting at $4.99 per month. Binomial Distribution PRO asks for nothing beyond the download.

Binomial Distribution PRO ships an update monthly, Bits AI every 3 days. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Binomial Distribution PRO | Bits AI |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/bits-ai-flashcards-and-quiz/id6738059151/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 179 MB | 12 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Trout](https://appshunter.io/developer/1711177549) |

## What reviewers say

### Binomial Distribution PRO

[App page](https://appshunter.io/ios/app/binomial-distribution-pro/id6472450459)

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

**In-app purchases:** none


### Bits AI

[App page](https://appshunter.io/ios/app/bits-ai-flashcards-and-quiz/id6738059151)

Enhance your learning with smart flashcards and spaced repetition. Organize study materials with detailed cards, track progress, and efficiently retain knowledge for exams, languages, or new subjects.

**Highlights:** Spaced Repetition learning, Quick Revise mode, Detailed flashcard creation, Progress tracking, Chapter organization

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $49.99 | per year |
| Premium | $99.99 | one-time |


## Frequently asked questions

### Is Binomial Distribution PRO free?

Binomial Distribution PRO costs $1.99, with no in-app purchases.

### Is Bits AI free?

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

### Do Binomial Distribution PRO or Bits AI have ads?

Neither Binomial Distribution PRO nor Bits AI shows ads.

### Which is updated more often, Binomial Distribution PRO or Bits AI?

Binomial Distribution PRO ships an update monthly, and Bits AI every 3 days. Most recently, Binomial Distribution PRO was updated on November 2, 2026 and Bits AI on November 4, 2026.

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