# Executive Serenity vs English Study Buddy

The clearest difference is in-app purchases: Executive Serenity at none against English Study Buddy's 1. Executive Serenity also leads on update cadence (monthly vs every 3 months). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. English Study Buddy sells 1 in-app purchase, starting at $29.00 per month. Executive Serenity asks for nothing beyond the download.

Executive Serenity ships an update monthly, English Study Buddy every 3 months. The most recent releases landed on October 11, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Executive Serenity | English Study Buddy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 86 MB | 87 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Omnisen Consulting Inc.](https://appshunter.io/developer/1678906005) | [YURI KIM](https://appshunter.io/developer/1762595351) |

## What reviewers say

### Executive Serenity

[App page](https://appshunter.io/ios/app/executive-serenity/id6446755408)

Access 27 audio/text lessons based on ancient success principles. Learn on the go with offline sync and progress tracking. Discover private secrets revealed to the public.

**Highlights:** 27 audio/text lessons, Mobile-friendly format, Offline sync, Progress tracking, Ancient success principles

**Features:** macOS Compatibility

**In-app purchases:** none


### English Study Buddy

[App page](https://appshunter.io/ios/app/english-study-buddy/id6633430834)

This app offers daily tasks and role-playing scenarios with audio to improve English communication skills. It focuses on common pronunciation mistakes for Korean learners and includes community features for accountability and support from native speakers.

**Highlights:** Daily English learning tasks, British English role-play scenarios, Audio recordings for pronunciation, Mini-lectures on common mistakes, Community for accountability, Mindset and confidence building content

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| English Study Buddy | $29.00 | per month |


## Frequently asked questions

### Is Executive Serenity free?

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

### Is English Study Buddy free?

English Study Buddy is free to download, with in-app purchases available.

### Do Executive Serenity or English Study Buddy have ads?

Both Executive Serenity and English Study Buddy show ads.

### Which is updated more often, Executive Serenity or English Study Buddy?

Executive Serenity ships an update monthly, and English Study Buddy every 3 months. Most recently, Executive Serenity was updated on October 11, 2026 and English Study Buddy on October 3, 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.*