# GRIDFALL vs Numbers Up Skill Challenge

The clearest difference is in-app purchases: Numbers Up Skill Challenge at none against GRIDFALL's 1. Numbers Up Skill Challenge also leads on update cadence (every 3 days vs every 2 weeks) and iOS requirement (13.0 vs 17.6). GRIDFALL's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. GRIDFALL sells 1 one-off in-app purchase. Numbers Up Skill Challenge asks for nothing beyond the download.

GRIDFALL ships an update every 2 weeks, Numbers Up Skill Challenge every 3 days. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | GRIDFALL | Numbers Up Skill Challenge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 57 MB | 26 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Mirhat Rama](https://appshunter.io/developer/1511968739) | [WAYNE BRIAN CORRICK](https://appshunter.io/developer/1878595782) |

## What reviewers say

### GRIDFALL

[App page](https://appshunter.io/ios/app/gridfall/id6758910467)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $3.99 | one-time |


### Numbers Up Skill Challenge

[App page](https://appshunter.io/ios/app/numbers-up-skill-challenge/id6759439482)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GRIDFALL free?

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

### Is Numbers Up Skill Challenge free?

Numbers Up Skill Challenge is free to download, with no in-app purchases.

### Do GRIDFALL or Numbers Up Skill Challenge have ads?

Numbers Up Skill Challenge shows ads; GRIDFALL does not.

### Which is updated more often, GRIDFALL or Numbers Up Skill Challenge?

GRIDFALL ships an update every 2 weeks, and Numbers Up Skill Challenge every 3 days. Most recently, GRIDFALL was updated on September 10, 2026 and Numbers Up Skill Challenge on September 8, 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.*