# YKBI vs Smart Smoke Quit

The clearest difference is in-app purchases: YKBI at none against Smart Smoke Quit's 1. YKBI also leads on ads (none vs shown). Smart Smoke Quit's advantage is update cadence (every 9 days vs every 10 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Smart Smoke Quit sells 1 one-off in-app purchase. YKBI asks for nothing beyond the download.

YKBI ships an update every 10 months, Smart Smoke Quit every 9 days. The most recent releases landed on October 22, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | YKBI | Smart Smoke Quit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 9 days** |
| Size | 39 MB | 43 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [FitPhilia](https://appshunter.io/developer/1178311498) | [Seiya.k](https://appshunter.io/developer/383021944) |

## What reviewers say

### YKBI

[App page](https://appshunter.io/ios/app/ykbi/id6445909273)

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

**In-app purchases:** none


### Smart Smoke Quit

[App page](https://appshunter.io/ios/app/smart-smoke-quit/id6748623748)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is YKBI free?

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

### Is Smart Smoke Quit free?

Smart Smoke Quit is free to download, with in-app purchases available.

### Do YKBI or Smart Smoke Quit have ads?

Smart Smoke Quit shows ads; YKBI does not.

### Which is updated more often, YKBI or Smart Smoke Quit?

YKBI ships an update every 10 months, and Smart Smoke Quit every 9 days. Most recently, YKBI was updated on October 22, 2026 and Smart Smoke Quit on October 13, 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.*