# Prolog vs Studi.

The clearest difference is iOS requirement: Studi. at 15.1 against Prolog's 17.6. On price, ads, 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.

## The numbers

| Metric | Prolog | Studi. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/studi/id6778184223/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 days | — |
| Monetization | — | Free |
| Size | 55 MB | 188 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elever (CA)](https://appshunter.io/developer/1769030097) | [Lucas Oblaender](https://appshunter.io/developer/6778184225) |

## What reviewers say

### Prolog

[App page](https://appshunter.io/ios/app/prolog-screen-time-and-focus/id6695728427)

**Features:** macOS Compatibility

**In-app purchases:** none


### Studi.

[App page](https://appshunter.io/ios/app/studi/id6778184223)

A minimalist study timer focused on essential features without distractions. It offers a clean interface with no pop-ups, ads, or paywalls, providing a focused environment for effective study sessions.

**Highlights:** Minimalist design, Clean interface, No pop-up distractions, Ad-free experience, No paywall secured features, Essential study tools

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

**In-app purchases:** none


## Frequently asked questions

### Is Prolog free?

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

### Is Studi. free?

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

### Do Prolog or Studi. have ads?

Neither Prolog nor Studi. shows ads.

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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.*