# Barrier vs ISSY Sentry

The clearest difference is ads: ISSY Sentry at none against Barrier's shown. ISSY Sentry also leads on iOS requirement (15.1 vs 17.0). Barrier's advantage is update cadence (fortnightly vs every 2 months). 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.

Barrier ships an update fortnightly, ISSY Sentry every 2 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Barrier | ISSY Sentry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (340 ratings)](https://appshunter.io/ios/app/barrier-screen-time-for-focus/id6448244443/reviews)** | — |
| Number of ratings | **340** | — |
| Positive reviews | 80.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 26 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Haplo, LLC](https://appshunter.io/developer/1476210690) | [JOSUE LUIS BUESO RIVERA](https://appshunter.io/developer/1859450125) |

## What reviewers say

### Barrier

[App page](https://appshunter.io/ios/app/barrier-screen-time-for-focus/id6448244443)

This app helps you break free from social media distractions by blocking access to social apps. It encourages healthier digital habits by requiring users to watch an ad or wait before accessing them, promoting mindful usage and digital wellness.

**Highlights:** Block social media apps, Limit app access, Promote healthier digital habits, Incentivize reduced scrolling, Digital wellness assistant

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

**In-app purchases:** none

**What reviewers like**

- 👍 Highly effective at reducing screen time
- 💰 Free to use with valuable features
- 😂 Funny and smart methods (Goblin Mode)
- 💡 Creates resistance to mindless scrolling
- 🚀 Simple and easy to use interface

**What reviewers complain about**

- 🐛 Bugs and glitches causing unreliability
- 🐛 Blocking not always consistent
- 🐛 Custom schedules not working correctly
- 🐛 Ads can be long and annoying
- 🐛 Violent ads in some cases

**Reported bugs**

- Blocking does not work at correct times or remains blocked at incorrect times
- Blocking stops working after a while
- Apps remain unlocked after unlocking
- Streak keeps breaking for no reason
- Custom schedule does not unlock when it's supposed to

**Requested features**

- Ability to set different apps to lock during different times
- More flexibility in setting multiple check-in times
- Option to customize the duration after watching an ad
- Fix for custom schedule not working for overnight blocking
- Option to have a daily time limit per app


### ISSY Sentry

[App page](https://appshunter.io/ios/app/issy-sentry/id6756495508)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Barrier free?

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

### Is ISSY Sentry free?

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

### Do Barrier or ISSY Sentry have ads?

Barrier shows ads; ISSY Sentry does not.

### Which is updated more often, Barrier or ISSY Sentry?

Barrier ships an update fortnightly, and ISSY Sentry every 2 months. Most recently, Barrier was updated on October 24, 2026 and ISSY Sentry on October 15, 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.*