# ZeroIn vs 10 Seconds Left

The clearest difference is update cadence: 10 Seconds Left at every 2 days against ZeroIn's every 3 weeks. 10 Seconds Left also leads on monetization model (free vs free with in-app purchases). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. ZeroIn sells 3 one-off in-app purchases and 10 Seconds Left sells 10 in-app purchases, starting at $1.99 per month. 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 ZeroIn against 5.0 for 10 Seconds Left. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ZeroIn ships an update every 3 weeks, 10 Seconds Left every 2 days. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ZeroIn | 10 Seconds Left |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/zeroin-reaction-time-and-reflex/id6788565326/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/10-seconds-left-time-attack/id6809976568/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 54 MB | 87 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Emre ALTUN](https://appshunter.io/developer/1852335131) | [ABDELMUMEN ALADHAM](https://appshunter.io/developer/6809976570) |

## What reviewers say

### ZeroIn

[App page](https://appshunter.io/ios/app/zeroin-reaction-time-and-reflex/id6788565326)

A reflex game where players stop a timer precisely on target, featuring various timing modes and challenges. Compete with others online or test your skills through hundreds of levels. Boosters and daily rewards help you progress.

**Highlights:** Stopwatch timing challenges, Visible, vanishing, and blind timing modes, Math and time estimation targets, Online reflex duels with leaderboards, Monthly seasons with rewards, Boosters for assistance, Daily rewards and streaks

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Life Refill | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |
| ZeroIn Pro | $9.99 | one-time |


### 10 Seconds Left

[App page](https://appshunter.io/ios/app/10-seconds-left-time-attack/id6809976568)

Engage in fast-paced action-puzzle challenges where you have only 10 seconds to solve each level. Test your quick thinking, timing, memory, and reaction skills across 140 unique puzzles. Enjoy offline gameplay with daily challenges and achievements.

**Highlights:** 10-second action-puzzle levels, Quick thinking and timing challenges, 140 handcrafted levels, Daily Challenge mode, Achievements and cosmetic progression, Offline-first gameplay

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Automatic Ad Removal | $1.99 | per month |
| 1 Skip Credit | $0.99 | one-time |
| 10 Hint Credits | $0.99 | one-time |
| Aurora Trail | $0.99 | one-time |
| Prism Win Effect | $0.99 | one-time |
| Aurora + Prism | $1.49 | one-time |
| 40 Hint Credits | $2.99 | one-time |
| 5 Skip Credits | $3.99 | one-time |
| 100 Hint Credits | $5.99 | one-time |
| 15 Skip Credits | $9.99 | one-time |


## Frequently asked questions

### Is ZeroIn free?

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

### Is 10 Seconds Left free?

10 Seconds Left is free to download, with in-app purchases available.

### Which has better reviews, ZeroIn or 10 Seconds Left?

ZeroIn and 10 Seconds Left are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ZeroIn or 10 Seconds Left have ads?

Both ZeroIn and 10 Seconds Left show ads.

### Which is updated more often, ZeroIn or 10 Seconds Left?

ZeroIn ships an update every 3 weeks, and 10 Seconds Left every 2 days. Most recently, ZeroIn was updated on October 21, 2026 and 10 Seconds Left on October 25, 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.*