# ZeroPamine vs Gus

The clearest difference is iOS requirement: ZeroPamine at 16.2 against Gus's 18.0. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. ZeroPamine sells 2 one-off in-app purchases and Gus sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for ZeroPamine against 5.0 for Gus. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZeroPamine | Gus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/zeropamine-focus-timer/id6756612361/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/gus-screen-time-and-app-blocker/id6759573402/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 95 MB | 27 MB |
| Requires iOS | **16.2** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dong Seok Lee](https://appshunter.io/developer/1446240630) | [Adonias Micael](https://appshunter.io/developer/1850297512) |

## What reviewers say

### ZeroPamine

[App page](https://appshunter.io/ios/app/zeropamine-focus-timer/id6756612361)

This app helps you stay focused using a Pomodoro timer with animated themes that evolve as you concentrate. It offers features for sorting focus time, saving routines, and tracking progress with detailed statistics. Start a dopamine detox and improve your productivity with this tool.

**Highlights:** Animated focus themes, Categorize focus time, Save routines and presets, Detailed statistics (daily, weekly, monthly, yearly), Lock screen timer, Cloud sync

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Campfire Theme - Cozy Fire | $1.99 | one-time |
| zeropamine pro | $9.99 | one-time |


### Gus

[App page](https://appshunter.io/ios/app/gus-screen-time-and-app-blocker/id6759573402)

This app helps you regain control of your time by setting daily limits on app usage. It locks distracting apps when your limit is reached, encouraging you to invest time in your personal goals instead. Track progress on your projects and habits with timed sessions and weekly reviews.

**Highlights:** Set daily app usage limits, Lock distracting apps at limit, Invest time in personal goals, Timed goal sessions and tracking, Weekly progress reviews, Protected sessions for focused work, Daily habit building routines

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gus Pro (Weekly) | $7.99 | per 7 days |
| Gus Pro (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is ZeroPamine free?

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

### Is Gus free?

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

### Which has better reviews, ZeroPamine or Gus?

ZeroPamine and Gus are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ZeroPamine or Gus have ads?

Both ZeroPamine and Gus show ads.

### Which is updated more often, ZeroPamine or Gus?

ZeroPamine ships an update weekly, and Gus weekly. Most recently, ZeroPamine was updated on November 5, 2026 and Gus on October 31, 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.*