# 7 Grid Up vs DC34 CTF

The clearest difference is ads: DC34 CTF at none against 7 Grid Up's shown. 7 Grid Up's advantage is update cadence (daily vs every 3 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

7 Grid Up ships an update daily, DC34 CTF every 3 days. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 7 Grid Up | DC34 CTF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dc34-ctf/id6784302919/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Daily** | Every 3 days |
| Monetization | — | Free |
| Size | 9 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [军 沈](https://appshunter.io/developer/1871797808) | [Jeremy Yablan](https://appshunter.io/developer/1781747583) |

## What reviewers say

### 7 Grid Up

[App page](https://appshunter.io/ios/app/7-grid-up/id6759347772)

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

**In-app purchases:** none


### DC34 CTF

[App page](https://appshunter.io/ios/app/dc34-ctf/id6784302919)

Engage in a challenging capture-the-flag game with diverse puzzles spanning cryptography, physical challenges, and hardware integration. Unlock fourteen channels, solve intricate problems without hints, and compete on a live leaderboard for prizes. The game is locked until the DEF CON 34 convention begins.

**Highlights:** Capture the Flag gameplay, 14 diverse puzzle channels, Cryptographic and physical challenges, Hardware integration puzzles, Live in-app leaderboard, Unlockable prizes, Hidden secrets

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

**In-app purchases:** none


## Frequently asked questions

### Is 7 Grid Up free?

7 Grid Up is free to download, with no in-app purchases.

### Is DC34 CTF free?

DC34 CTF is free to download, with no in-app purchases.

### Do 7 Grid Up or DC34 CTF have ads?

7 Grid Up shows ads; DC34 CTF does not.

### Which is updated more often, 7 Grid Up or DC34 CTF?

7 Grid Up ships an update daily, and DC34 CTF every 3 days. Most recently, 7 Grid Up was updated on October 25, 2026 and DC34 CTF on October 23, 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.*