# Twilight Grids vs Vector Flow

The clearest difference is in-app purchases: Vector Flow at none against Twilight Grids's 1. Twilight Grids's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Twilight Grids sells 1 one-off in-app purchase. Vector Flow asks for nothing beyond the download.

Twilight Grids ships an update daily, Vector Flow every 3 days. The most recent releases landed on September 10, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Twilight Grids | Vector Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 3 days |
| Size | 89 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VectorWeave](https://appshunter.io/developer/1894677144) | [Simple Fun Software LP](https://appshunter.io/developer/1504976627) |

## What reviewers say

### Twilight Grids

[App page](https://appshunter.io/ios/app/twilight-grids-logic-puzzles/id6762560297)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Infinity Package | $9.99 | one-time |


### Vector Flow

[App page](https://appshunter.io/ios/app/vector-flow-circuit-logic/id6778104944)

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

**In-app purchases:** none


## Frequently asked questions

### Is Twilight Grids free?

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

### Is Vector Flow free?

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

### Do Twilight Grids or Vector Flow have ads?

Both Twilight Grids and Vector Flow show ads.

### Which is updated more often, Twilight Grids or Vector Flow?

Twilight Grids ships an update daily, and Vector Flow every 3 days. Most recently, Twilight Grids was updated on September 10, 2026 and Vector Flow on September 18, 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.*