# B2B Letters vs GeniusBuddy AI

The clearest difference is in-app purchases: B2B Letters at none against GeniusBuddy AI's 2. B2B Letters also leads on iOS requirement (13.0 vs 16.6). GeniusBuddy AI's advantage is update cadence (every 5 days vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. GeniusBuddy AI sells 2 in-app purchases, starting at $7.99 per 7 days. B2B Letters asks for nothing beyond the download.

B2B Letters ships an update every 5 months, GeniusBuddy AI every 5 days. The most recent releases landed on November 4, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | B2B Letters | GeniusBuddy AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/geniusbuddy-ai/id6738097950/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 63 MB | 25 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [alaattin irdem](https://appshunter.io/developer/1714408695) | [Mykhailo Serhiienko](https://appshunter.io/developer/1775740386) |

## What reviewers say

### B2B Letters

[App page](https://appshunter.io/ios/app/b2b-letters/id6471879339)

**Features:** macOS Compatibility

**In-app purchases:** none


### GeniusBuddy AI

[App page](https://appshunter.io/ios/app/geniusbuddy-ai/id6738097950)

This AI-powered assistant simplifies complex tasks, from solving math problems and answering general knowledge questions to drafting emails and improving writing. It offers step-by-step explanations and instant, reliable answers to help users learn smarter and boost their confidence.

**Highlights:** Step-by-step math problem solver, General knowledge assistant, Email drafting and writing enhancement, Time-saving solutions, Confidence boosting, Smart learning tool

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $7.99 | per 7 days |
| Yearly Plan | $44.99 | per year |


## Frequently asked questions

### Is B2B Letters free?

B2B Letters is free to download, with no in-app purchases.

### Is GeniusBuddy AI free?

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

### Do B2B Letters or GeniusBuddy AI have ads?

Neither B2B Letters nor GeniusBuddy AI shows ads.

### Which is updated more often, B2B Letters or GeniusBuddy AI?

B2B Letters ships an update every 5 months, and GeniusBuddy AI every 5 days. Most recently, B2B Letters was updated on November 4, 2026 and GeniusBuddy AI on November 6, 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.*