# Number Sum Puzzle vs Gridlock

The clearest difference is update cadence: Number Sum Puzzle at every 5 days against Gridlock's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Number Sum Puzzle sells 5 one-off in-app purchases and Gridlock sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Number Sum Puzzle ships an update every 5 days, Gridlock every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Number Sum Puzzle | Gridlock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (6 ratings)](https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | Ad-supported | — |
| Size | 138 MB | 45 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [LIHUHU PUBLISHING PTE. LTD.](https://appshunter.io/developer/1732214108) | [Ahmet Muhammet Vural (AN)](https://appshunter.io/developer/1571264727) |

## What reviewers say

### Number Sum Puzzle

[App page](https://appshunter.io/ios/app/number-sum-puzzle-math-game/id6759648322)

This logic puzzle game challenges your brain with number sums. Arrange numbers in a grid so rows and columns match target sums. Enjoy handcrafted puzzles with no timers or pressure, perfect for a calm, focused mental workout.

**Highlights:** Number sum grid puzzles, Handcrafted unique solutions, No timers or pressure, Offline play, Daily brain workout, Dark mode support

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Hints | $1.99 | one-time |
| Value Hints | $5.99 | one-time |
| Mega Hints | $9.99 | one-time |
| VIP - No Ads | $19.99 | one-time |
| VIP - No Ads | $49.99 | one-time |


### Gridlock

[App page](https://appshunter.io/ios/app/gridlock-strategy-board-game/id6795023218)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $14.99 | per year |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Number Sum Puzzle free?

Number Sum Puzzle is free to download, with in-app purchases available.

### Is Gridlock free?

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

### Do Number Sum Puzzle or Gridlock have ads?

Both Number Sum Puzzle and Gridlock show ads.

### Which is updated more often, Number Sum Puzzle or Gridlock?

Number Sum Puzzle ships an update every 5 days, and Gridlock every 2 weeks. Most recently, Number Sum Puzzle was updated on October 31, 2026 and Gridlock on October 31, 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.*