# AccuMark

> Averages GPS location data over time to increase accuracy. (iPhone/iPad app by Manfred Siwowolow.)

- Source: https://appshunter.io/ios/app/accumark/id755740904 (this page in markdown: same URL + `.md`)
- Developer: [Manfred Siwowolow](https://appshunter.io/developer/755740907)
- Category: Navigation, Education
- Price: $0.99
- Rating: 3.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 1 MB
- Languages: English
- Released: 2013-11-22
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/accumark/id755740904/reviews.md

## What is AccuMark?

This is not your average GPS averaging app! AccuMark allows you to capture location events from your iOS device and average them over time. GPS location fixes are subject to various error factors. However, over a period of several hours, measurement errors have a tendency to cancel each other out. Depending on the measurement duration, local GPS reception conditions and solar activity, the achieved final accuracy can be less than one meter/yard. Please note that there is no guarantee on the final accuracy.

The concept of AccuMark implies use of the GPS hardware of your iOS device over a long period of time. Therefore you should use AccuMark only while the device is plugged into a power supply, for example an external battery pack. If you do not do this, AccuMark can drain the battery of your device fairly quickly.

To use AccuMark, position the iOS device at the location for which you would like to determine the coordinates. Then press the location button. The button will highlight to indicate that the application is taking samples. AccuMark plots all samples in the plot area. AccuMark will only consider samples that fall into a circle with a diameter of 20 meters for averaging. If you press the share button, you have the option to show the location on Apple Maps or Google Maps, or to copy it to the clipboard. You can also share the raw location samples as a comma-separated-values file.

## Key features

- Averages GPS location data
- Improves coordinate accuracy
- Plots location samples
- Shares location on maps
- Exports raw location data

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/accumark/id755740904/reviews.md

### 1/5 — Junk

*2020-02-21, version 2.0*

No map until your location is exported and export button doesn’t work

## Frequently asked questions about AccuMark

### How does AccuMark improve GPS accuracy?

AccuMark averages multiple GPS location samples taken over a period of time. This process helps to cancel out measurement errors, potentially achieving an accuracy of less than one meter.

### What is the price of AccuMark?

AccuMark is a paid application, available for $0.99.

### What devices does AccuMark support?

AccuMark is compatible with iPhone and iPod devices.

### What is the age rating for AccuMark?

AccuMark has an age rating of 4+, making it suitable for a wide range of users.

### How often is AccuMark updated?

The latest version of AccuMark was released on October 13, 2020. It was initially released on November 22, 2013.

### Does AccuMark require the device to be plugged in?

Yes, the app's concept relies on prolonged GPS hardware usage. It is recommended to use AccuMark while the device is plugged into a power source to avoid rapid battery drain.

### What is the user sentiment for AccuMark?

AccuMark has a rating of 3.0 stars from 2 user reviews, indicating mixed user satisfaction.

### Can I share my location data from AccuMark?

Yes, you can share your location on Apple Maps or Google Maps, copy coordinates to the clipboard, or export raw location samples as a CSV file.

## Version history (last 1 release)

### 2.1 — 2020-10-13

Added measured altitude to the raw data export. 
Improved the sampling algorithm.

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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.*