# Tar Print

> Calculates pervious and impervious surface percentages using Apple Maps and computer vision. (iPhone/iPad app by Nagesh Vaddi.)

- Source: https://appshunter.io/ios/app/tar-print/id1540892971 (this page in markdown: same URL + `.md`)
- Developer: [Nagesh Vaddi](https://appshunter.io/developer/1540892973)
- Category: Education
- Price: Free
- Rating: 5.00/5 from 19 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 24 MB
- Languages: English
- Released: 2020-12-03
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tar-print/id1540892971/reviews.md

## What is Tar Print?

Tar Print streamlines the process of calculating pervious and impervious surface percentages by integrating Apple Maps with machine learning and novel computer vision algorithms. The user can easily analyze surface types without having to train any classifiers.

Simply specify a location and settings, and click the camera button to quantify impervious surface percentages.

Allowing more students and researchers easy access to a surface type analyzer increases the extent of citizen science and environmental stewardship efforts to mitigate the harmful impacts of urban development on local water quality and stream ecology.

•  •  • 

Please Note: While we offer location services, we DO NOT collect or store any location data. This resource is intended for in-the-field research, environmental stewardship projects, urban development, stormwater management, or any other project for which surface percentage types are of benefit. Also, we are currently assessing the accuracy of Tar Print against well-known remote sensing tools such as ArcGIS, to obtain results which we will make public.

## Key features

- Surface type analysis
- Pervious/impervious percentage calculation
- Apple Maps integration
- Machine learning algorithms
- Computer vision
- Citizen science tool

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/tar-print/id1540892971/reviews.md

### 5/5 — very good app

*2022-02-14*

very good app

### 5/5 — Great Design

*2020-12-09*

This app is awesome! It is designed very well.

### 5/5 — rly insightful

*2020-12-05*

Very nice educational app and good insight on the pervious surfaces in an area :)

## Frequently asked questions about Tar Print

### How does Tar Print calculate surface percentages?

Tar Print uses Apple Maps integrated with machine learning and computer vision algorithms to analyze surface types and quantify impervious surface percentages. Users specify a location and settings, then click a button to initiate the analysis.

### Is Tar Print suitable for educational purposes?

Yes, Tar Print is designed to increase access to surface type analysis for students and researchers, supporting citizen science and environmental stewardship efforts. It helps in understanding the impacts of urban development on water quality and stream ecology.

### Does Tar Print collect or store user location data?

No, the app explicitly states that while it uses location services, it does not collect or store any location data. This ensures user privacy while providing the necessary functionality for analysis.

### What is the accuracy of Tar Print compared to other tools?

The developers are currently assessing Tar Print's accuracy against well-known remote sensing tools like ArcGIS, with plans to make these results public. This indicates a commitment to validating its performance.

### What devices is Tar Print compatible with?

Tar Print is available for iPhone and iPod devices. It is designed to run on iOS operating systems.

### How often is Tar Print updated?

The latest version of Tar Print is 2.0, which was last updated on February 6, 2022. This suggests a moderate update frequency.

### What is the age rating for Tar Print?

Tar Print has an age rating of 4+, making it suitable for a wide range of users, including younger students involved in environmental projects.

### Does Tar Print have ads?

No, Tar Print does not contain advertisements. It is a free application without any ad interruptions.

## Version history (last 3 releases)

### 2.0 — 2022-02-06

- optimized for iOS 15
- updated water surface filtration protocol
- accurate for both light and dark modes

### 1.1 — 2020-12-04

Improved help feature and satellite information.

### 1.0 — 2020-12-03

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*