# One Second Challenge vs Lucky 777 Challenge

The clearest difference is ads: One Second Challenge at none against Lucky 777 Challenge's shown. One Second Challenge also leads on iOS requirement (16.0 vs 26.1). Lucky 777 Challenge's advantage is update cadence (daily vs every 6 weeks). 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.

One Second Challenge ships an update every 6 weeks, Lucky 777 Challenge daily. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | One Second Challenge | Lucky 777 Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Daily** |
| Size | 1 MB | 4 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [THEJ KUMAR SIDDHOTAM ARULRAJ](https://appshunter.io/developer/1781177167) | [ASITA, K.K.](https://appshunter.io/developer/1874283380) |

## What reviewers say

### One Second Challenge

[App page](https://appshunter.io/ios/app/one-second-challenge/id6768998129)

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

**In-app purchases:** none


### Lucky 777 Challenge

[App page](https://appshunter.io/ios/app/lucky-777-challenge/id6781253303)

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

**In-app purchases:** none


## Frequently asked questions

### Is One Second Challenge free?

One Second Challenge is free to download, with no in-app purchases.

### Is Lucky 777 Challenge free?

Lucky 777 Challenge is free to download, with no in-app purchases.

### Do One Second Challenge or Lucky 777 Challenge have ads?

Lucky 777 Challenge shows ads; One Second Challenge does not.

### Which is updated more often, One Second Challenge or Lucky 777 Challenge?

One Second Challenge ships an update every 6 weeks, and Lucky 777 Challenge daily. Most recently, One Second Challenge was updated on October 25, 2026 and Lucky 777 Challenge on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*