# Tau by Turing Dream vs Studay

The clearest difference is ads: Tau by Turing Dream at none against Studay's shown. Tau by Turing Dream also leads on update cadence (every 6 days vs every 3 weeks) and iOS requirement (15.0 vs 18). On price, in-app purchases and device support there is nothing between them.

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

Tau by Turing Dream ships an update every 6 days, Studay every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Tau by Turing Dream | Studay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Size | 50 MB | 87 MB |
| Requires iOS | **15.0** | 18 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Turing Dream](https://appshunter.io/developer/1779917404) | [Studay SL](https://appshunter.io/developer/1873198427) |

## What reviewers say

### Tau by Turing Dream

[App page](https://appshunter.io/ios/app/tau-by-turing-dream/id6738277444)

**In-app purchases:** none


### Studay

[App page](https://appshunter.io/ios/app/studay/id6758503757)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tau by Turing Dream free?

Tau by Turing Dream is free to download, with no in-app purchases.

### Is Studay free?

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

### Do Tau by Turing Dream or Studay have ads?

Studay shows ads; Tau by Turing Dream does not.

### Which is updated more often, Tau by Turing Dream or Studay?

Tau by Turing Dream ships an update every 6 days, and Studay every 3 weeks. Most recently, Tau by Turing Dream was updated on October 25, 2026 and Studay on October 31, 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.*