# Thea vs MindKoi

The clearest difference is update cadence: MindKoi at every 10 days against Thea's monthly. Thea's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Thea sells 2 in-app purchases, starting at $12.00 per month and MindKoi sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Thea ships an update monthly, MindKoi every 10 days. The most recent releases landed on September 23, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Thea | MindKoi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (2K ratings)](https://appshunter.io/ios/app/thea-study-smart/id6742800289/reviews)** | — |
| Number of ratings | **2K** | — |
| Positive reviews | 95.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 18 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Thea Study](https://appshunter.io/developer/1800055800) | [Pavel Kazlou](https://appshunter.io/developer/1462519810) |

## What reviewers say

### Thea

[App page](https://appshunter.io/ios/app/thea-study-smart/id6742800289)

Transform your course materials into interactive study tools with an AI-powered platform. Upload notes, PDFs, or videos to generate flashcards, practice tests, and summaries. Learn efficiently and master your subjects with personalized study plans.

**Highlights:** AI-powered study material transformation, Interactive flashcards and game modes, Adaptive learning question generation, Practice test simulation, Automatic summarization and guide creation, Multi-language support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.00 | per month |
| Yearly | $48.00 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful AI features
- 💰 Free version available
- 📚 Effective for studying and learning
- 🎓 Useful for AP and nursing exams

**What reviewers complain about**

- 🔍 Lack of spaced repetition setting
- 🔒 Potential for paywalls in the future

**Reported bugs**

- Answers not mixed up in matching game

**Requested features**

- Spaced repetition setting
- More customization options


### MindKoi

[App page](https://appshunter.io/ios/app/mindkoi-study-smarter-and-learn/id6751173393)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plus | $9.99 | per month |
| Annual Plus | $59.99 | per year |


## Frequently asked questions

### Is Thea free?

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

### Is MindKoi free?

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

### Do Thea or MindKoi have ads?

Neither Thea nor MindKoi shows ads.

### Which is updated more often, Thea or MindKoi?

Thea ships an update monthly, and MindKoi every 10 days. Most recently, Thea was updated on September 23, 2026 and MindKoi on September 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.*