# Straighten Up and Level vs Perimeter PRO

The clearest difference is price: Perimeter PRO at Free against Straighten Up and Level's $0.99. Perimeter PRO also leads on review sentiment (40% vs 0%) and update cadence (every 3 days vs every 42 months). Straighten Up and Level's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Perimeter PRO is free to download; Straighten Up and Level costs $0.99 up front. Perimeter PRO sells 2 one-off in-app purchases. Straighten Up and Level asks for nothing beyond the download.

Straighten Up and Level ships an update every 42 months, Perimeter PRO every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Straighten Up and Level | Perimeter PRO |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.2 (9 ratings)](https://appshunter.io/ios/app/perimeter-pro/id6624308929/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 3 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 4 MB | 7 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aviametrix, LLC](https://appshunter.io/developer/1120306811) | [Viszt Peter](https://appshunter.io/developer/1448243869) |

## What reviewers say

### Straighten Up and Level

[App page](https://appshunter.io/ios/app/straighten-up-and-level/id1476836601)

This utility app uses your device's camera to help you perfectly align picture frames and other items. It offers a special line mode for clear edge detection and can assist with hanging items at specific angles. Calibration options ensure accurate vertical and horizontal alignment.

**Highlights:** Camera-assisted alignment, Line mode for edge detection, Specific angle hanging, Accelerometer calibration, Vertical and horizontal accuracy

**Features:** Vision Pro support

**In-app purchases:** none


### Perimeter PRO

[App page](https://appshunter.io/ios/app/perimeter-pro/id6624308929)

This augmented reality tool allows users to measure outdoor spaces and create professional blueprints. It's ideal for professionals and DIYers needing precise measurements for planning, design, and sharing.

**Highlights:** Measure outdoor spaces with AR, Calculate area, perimeter, and volume, Generate detailed, editable blueprints, Save and organize projects, Export and share blueprints as PDF

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited exports | $4.99 | one-time |
| PRO version | $4.99 | one-time |


## Frequently asked questions

### Is Straighten Up and Level free?

Straighten Up and Level costs $0.99, with no in-app purchases.

### Is Perimeter PRO free?

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

### Do Straighten Up and Level or Perimeter PRO have ads?

Neither Straighten Up and Level nor Perimeter PRO shows ads.

### Which is updated more often, Straighten Up and Level or Perimeter PRO?

Straighten Up and Level ships an update every 42 months, and Perimeter PRO every 3 days. Most recently, Straighten Up and Level was updated on October 20, 2026 and Perimeter PRO on October 24, 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.*