# e4c5 - app blocker — Chess Puzzles to Limit Apps

> Chess Puzzles to Limit Apps (iPhone/iPad app by Rodion Novikov.)

- Source: https://appshunter.io/ios/app/e4c5-app-blocker/id6757018750 (this page in markdown: same URL + `.md`)
- Developer: [Rodion Novikov](https://appshunter.io/developer/1665185350)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.6 · 11 MB
- Languages: American English
- Released: 2026-01-15
- Data updated: 2026-09-30
- User reviews in markdown: https://appshunter.io/ios/app/e4c5-app-blocker/id6757018750/reviews.md

## What is e4c5?

Limit social media app usage with clever app blocker e4c5.
To unlock your apps - solve a chess puzzle.

You pause, think; the urge fades. You turn off your phone and live a better life without endless scrolling.
If social media apps are something you want to limit, give e4c5 a try.

Suggestions? Use the form in the app settings.

Privacy Policy: https://sites.google.com/view/e4e5-app-block/home/privacy-policy
Terms of Use: https://sites.google.com/view/e4e5-app-block/home/terms-of-use

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| e4c5 - Monthly Subscription | $1.99 | per month |
| e4c5 - Monthly Subscription | $3.99 | per month |
| e4c5 - Weekly Subscription | $3.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| e4c5 - Lifetime Access | Free | one-time |
| e4c5 - Lifetime Access | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-01-15

No release notes.

## Apps similar to e4c5

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ChessLock: Screen Time Control](https://appshunter.io/ios/app/chesslock-screen-time-control/id6744930081) | 4.8 (4) | Free | Productivity |
| [EVOLVE AI: Self Improvement](https://appshunter.io/ios/app/evolve-ai-self-improvement/id6766086729) | 1.0 (1) | Free | Productivity |
| [SuperPresent](https://appshunter.io/ios/app/superpresent/id6738845613) | 4.0 (1) | Free | Productivity |
| [Porn Site Blocker: The Blocker](https://appshunter.io/ios/app/porn-site-blocker-the-blocker/id1200989981) | — | Free | Productivity |
| [Flip Phone Focus](https://appshunter.io/ios/app/flip-phone-focus/id6755790741) | 5.0 (22) | Free | Productivity |
| [Kanban Notes & Tasks - Boardly](https://appshunter.io/ios/app/kanban-notes-and-tasks-boardly/id6752723058) | 5.0 (2) | $1.99 | Productivity |

## More apps by Rodion Novikov

- [AI Dream Interpretation App](https://appshunter.io/ios/app/ai-dream-interpretation-app/id1670009423)
- [Blob To Do - Task List](https://appshunter.io/ios/app/blob-to-do-task-list/id6744033382)
- [Procrastination Solved - Acty](https://appshunter.io/ios/app/procrastination-solved-acty/id6751211430)
- [Bible Widget - KJV](https://appshunter.io/ios/app/bible-widget-kjv/id6794831675)

All apps by Rodion Novikov: https://appshunter.io/developer/1665185350

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-30.*