# Zentry vs Promise

The clearest difference is in-app purchases: Promise at none against Zentry's 3. Promise also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Zentry sells 3 in-app purchases, starting at $3.99 per 7 days. Promise asks for nothing beyond the download.

Zentry ships an update every 3 weeks, Promise every 3 days. The most recent releases landed on October 8, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Zentry | Promise |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/promise-screen-time-control/id6772737353/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 7 MB | 33 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Serhii Kravchuk](https://appshunter.io/developer/1782521114) | [JAKUB ELIAS](https://appshunter.io/developer/6772737355) |

## What reviewers say

### Zentry

[App page](https://appshunter.io/ios/app/zentry-screen-time-control/id6745819344)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Zentry: Screen Time Control | $3.99 | per 7 days |
| Lifetime | $39.99 | one-time |


### Promise

[App page](https://appshunter.io/ios/app/promise-screen-time-control/id6772737353)

This app helps you reduce screen time and digital distractions with playful app blocking and focus routines. It features a cute companion that keeps you accountable, offering gentle warnings before blocking access to distracting applications.

**Highlights:** Block distracting apps, Reduce screen time, Set app limits, Focus routines, Soft warnings before blocks, Track screen time and usage, Build healthier phone habits

**In-app purchases:** none


## Frequently asked questions

### Is Zentry free?

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

### Is Promise free?

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

### Do Zentry or Promise have ads?

Neither Zentry nor Promise shows ads.

### Which is updated more often, Zentry or Promise?

Zentry ships an update every 3 weeks, and Promise every 3 days. Most recently, Zentry was updated on October 8, 2026 and Promise on September 30, 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.*