# iGPT vs ThinkSpark

The clearest difference is update cadence: ThinkSpark at every 3 days against iGPT's every 10 days. iGPT's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iGPT ships an update every 10 days, ThinkSpark every 3 days. The most recent releases landed on September 4, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | iGPT | ThinkSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/igpt-ai-email-intelligence/id6741868157/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free | Free |
| Size | 15 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [SpikeNow Ltd.](https://appshunter.io/developer/491044400) | [Keitaro Kuwabara](https://appshunter.io/developer/1867078979) |

## What reviewers say

### iGPT

[App page](https://appshunter.io/ios/app/igpt-ai-email-intelligence/id6741868157)

This AI-powered tool connects to your email, documents, and other work tools to provide context-rich answers and insights. It helps you make faster, smarter decisions by understanding your work and offering verifiable information with source citations.

**Highlights:** Connects to email, docs, and tools, Provides context-rich answers, Source citations for verifiable truth, Proactive insights on tasks and meetings, Enterprise-grade privacy (SOC2, GDPR compliant), No file uploads or complex prompts needed

**Features:** Vision Pro support

**In-app purchases:** none


### ThinkSpark

[App page](https://appshunter.io/ios/app/thinkspark-ai-assistant-notes/id6758004796)

This AI-powered note-taking app helps you expand ideas, refine writing, and summarize content. Engage in AI-driven conversations based on your notes and organize them with customizable folders. It's designed to accelerate creativity and integrate AI into your daily workflow.

**Highlights:** AI idea expansion, Proofreading and editing, Smart summarization, AI chat with notes, Folder management, Favorites and pinning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iGPT free?

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

### Is ThinkSpark free?

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

### Do iGPT or ThinkSpark have ads?

Neither iGPT nor ThinkSpark shows ads.

### Which is updated more often, iGPT or ThinkSpark?

iGPT ships an update every 10 days, and ThinkSpark every 3 days. Most recently, iGPT was updated on September 4, 2026 and ThinkSpark on June 5, 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.*