# Angle Unit Converter vs Smart Survey Pro

The clearest difference is price: Smart Survey Pro at Free against Angle Unit Converter's $1.99. Smart Survey Pro also leads on update cadence (fortnightly vs every 11 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Smart Survey Pro is free to download; Angle Unit Converter costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Angle Unit Converter ships an update every 11 months, Smart Survey Pro fortnightly. The most recent releases landed on September 5, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Angle Unit Converter | Smart Survey Pro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/angle-unit-converter/id1470713481/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 8 MB | 21 MB |
| Requires iOS | 12.0 | 12 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kei Suefuji](https://appshunter.io/developer/1388335881) | [Leica Geosystems(Shanghai)Co.,Limited](https://appshunter.io/developer/1158778324) |

## What reviewers say

### Angle Unit Converter

[App page](https://appshunter.io/ios/app/angle-unit-converter/id1470713481)

This application converts angle measurements between five different units: degrees, radians, degrees/arcminutes/arcseconds, arcminutes, and arcseconds. Simply input your value and select the desired output units for instant conversion.

**Highlights:** Converts between 5 angle units, Supports degrees, radians, arcminutes, arcseconds, Converts degrees to degrees/arcminutes/arcseconds, Simple input and unit selection, Displays converted values instantly

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

**In-app purchases:** none


### Smart Survey Pro

[App page](https://appshunter.io/ios/app/smart-survey-pro/id6751220618)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Angle Unit Converter free?

Angle Unit Converter costs $1.99, with no in-app purchases.

### Is Smart Survey Pro free?

Smart Survey Pro is free to download, with no in-app purchases.

### Do Angle Unit Converter or Smart Survey Pro have ads?

Neither Angle Unit Converter nor Smart Survey Pro shows ads.

### Which is updated more often, Angle Unit Converter or Smart Survey Pro?

Angle Unit Converter ships an update every 11 months, and Smart Survey Pro fortnightly. Most recently, Angle Unit Converter was updated on September 5, 2026 and Smart Survey Pro on June 11, 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.*