# WhatGDT vs Case App

The clearest difference is in-app purchases: Case App at none against WhatGDT's 4. Case App also leads on update cadence (every 8 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WhatGDT sells 4 in-app purchases, starting at $9.99 per month. Case App asks for nothing beyond the download.

WhatGDT ships an update every 2 months, Case App every 8 days. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | WhatGDT | Case App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (21 ratings)](https://appshunter.io/ios/app/whatgdt-ai-chat-assistant/id6459108520/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 92.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 37 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Vista Mobile](https://appshunter.io/developer/1688449685) | [yunus emre delibalta](https://appshunter.io/developer/1651361319) |

## What reviewers say

### WhatGDT

[App page](https://appshunter.io/ios/app/whatgdt-ai-chat-assistant/id6459108520)

Enhance your messaging experience on WhatsApp and Telegram with an AI chatbot powered by GPT-4o. Get smart, fast replies, enjoy voice and art AI features, and communicate in multiple languages effortlessly.

**Highlights:** AI chatbot for WhatsApp and Telegram, Powered by GPT-4o technology, Smart and fast replies, Art AI and Voice AI features, Multi-language support, Seamless integration with messaging apps

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly ChatGPT for WhatsApp | $9.99 | per month |
| WhatGdt Yearly Premium | $24.99 | per year |
| WhatGdt Yearly Pro Premium | $39.99 | per year |
| Lifetime ChatGpt for Whatsapp | $49.99 | one-time |


### Case App

[App page](https://appshunter.io/ios/app/case-app/id6670746383)

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

**In-app purchases:** none


## Frequently asked questions

### Is WhatGDT free?

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

### Is Case App free?

Case App is free to download, with no in-app purchases.

### Do WhatGDT or Case App have ads?

Neither WhatGDT nor Case App shows ads.

### Which is updated more often, WhatGDT or Case App?

WhatGDT ships an update every 2 months, and Case App every 8 days. Most recently, WhatGDT was updated on November 5, 2026 and Case App 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.*