# Instant Slayer vs 1/2 one

The clearest difference is ads: Instant Slayer at none against 1/2 one's shown. Instant Slayer also leads on update cadence (every 10 days vs every 2 months) and monetization model (free vs ad-supported). On price, review sentiment, 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.

Instant Slayer ships an update every 10 days, 1/2 one every 2 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Instant Slayer | 1/2 one |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/instant-slayer-reflex-game/id1498015071/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 260 MB | 49 MB |
| Requires iOS | **9.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 9+ |
| Developer | [RAGNAROCK INC.](https://appshunter.io/developer/1439402800) | [gravass, Inc.](https://appshunter.io/developer/1527714391) |

## What reviewers say

### Instant Slayer

[App page](https://appshunter.io/ios/app/instant-slayer-reflex-game/id1498015071)

Test your reaction speed in this simple yet challenging game. Tap the screen as fast as possible when prompted to defeat opponents in various modes. Compete against friends or aim for a global high score.

**Highlights:** Tap to react quickly, Single-player modes, 1v1 multiplayer, Endless mode with global rankings, Improve reflexes

**Features:** macOS Compatibility

**In-app purchases:** none


### 1/2 one

[App page](https://appshunter.io/ios/app/12-one-half/id6526470967)

Test your luck and strategy in this simple guessing game. Aim for consecutive correct answers with a 50/50 chance, and track your progress. You get one chance to redo a selection per streak.

**Highlights:** 50/50 guessing mechanic, Consecutive correct answer tracking, Single redo per streak, Probability display, Simple L/R choices

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

**In-app purchases:** none


## Frequently asked questions

### Is Instant Slayer free?

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

### Is 1/2 one free?

1/2 one is free to download, with no in-app purchases.

### Do Instant Slayer or 1/2 one have ads?

1/2 one shows ads; Instant Slayer does not.

### Which is updated more often, Instant Slayer or 1/2 one?

Instant Slayer ships an update every 10 days, and 1/2 one every 2 months. Most recently, Instant Slayer was updated on November 3, 2026 and 1/2 one on November 4, 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.*