# Keylines vs DV+ Calibration

The clearest difference is in-app purchases: DV+ Calibration at none against Keylines's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Keylines sells 1 one-off in-app purchase. DV+ Calibration asks for nothing beyond the download.

## The numbers

| Metric | Keylines | DV+ Calibration |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/keylines/id6443838591/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | Free | — |
| Size | 2 MB | 3 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [明亮 李](https://appshunter.io/developer/1649800454) | [NEWLINE INTERACTIVE, INC.](https://appshunter.io/developer/1459593476) |

## What reviewers say

### Keylines

[App page](https://appshunter.io/ios/app/keylines/id6443838591)

Overlay a customizable grid on screenshots to accurately measure layout dimensions, margins, and padding. This tool streamlines design and development workflows by enabling detailed analysis of app interfaces.

**Highlights:** Screenshot grid overlay, Measure layout sizes, Analyze margins and padding, Customizable grid size, Customizable line colors, Speeds up design process

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Use Pixel as Coordinates | $0.99 | one-time |


### DV+ Calibration

[App page](https://appshunter.io/ios/app/dv-plus-calibration/id6504960175)

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

**In-app purchases:** none


## Frequently asked questions

### Is Keylines free?

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

### Is DV+ Calibration free?

DV+ Calibration is free to download, with no in-app purchases.

### Do Keylines or DV+ Calibration have ads?

Neither Keylines nor DV+ Calibration shows ads.

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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.*