Topography vs I'm here
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Topography
This tool helps civil engineers, architects, and surveyors measure surface areas and convert coordinates. It allows users to calculate polygon areas, convert coordinates to UTM EGSA87 Datum, and export measurements in DXF, KML, or TXT formats via email.
- Convert coordinates to UTM EGSA87 Datum
- Calculate polygon area in square meters
- Export measurements in DXF format
- Export measurements in KML format
- Export measurements in TXT format
- Input coordinates manually
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The application is very useful to Civil Engineers, Architects, Surveyors, and those interested in measuring a surface area or converting its coordinates to UTM EGSA87. This tool enables users to: 1. Convert the coordinates (x,y) to UTM EGSA87 Datum 2. Calculate the area of a polygon in square meters (m2) 3. Send the above measurements by e-mail in [dxf] file format. The dxf file can be opened in a MAC or a PC by any drawing application like Autocad. 4. Send measurements by e-mail in [kml] file format. The kml file can be opened in a MAC or a PC or iPhone by GoogleEarth application. 5. Send measurements by e-mail in [TXT] file format. The text file contains coordinates either in EGSA87 Datum or Latitude and Longitude in decimal degrees or UTM coordinates. The measurements mentioned above can be provided not only by placing the iPhone in each border of a surface area, but also from distance (when users are on their bed or their sofa). Users may also have their final measurements by entering the coordinates either in EGSA87 Datum or Latitude and Longitude in decimal degrees.
I'm here
This free map application offers easy-to-use navigation from your current location or a specified starting point. Select routes for various transportation methods and utilize automatic navigation with voice announcements, even when other apps are in use or the screen is off. It also includes direct calling to search results and social media posting.
- Route selection by transportation mode
- Turn-by-turn navigation with voice
- Automatic navigation with background updates
- Direct calling from search results
- SNS and memo posting
- Search history function
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"I'm here" is a free map application with easy operation. Equipped with a navigation function to the destination from the current location or the input start point. With a simple operation, you can check not only the route from your current location, but also the detailed route from the input start point to the destination in advance, so it is very convenient! Only iPad version can be displayed horizontally. ◆ Route for each means of transportation can be selected: · By tapping the transportation mode display button or the place name of the list, the route of each transportation method (walking, car etc) is displayed in order. ◆ Navigation function installed: - You can also transition to the navigation screen by tapping the navigation button or by long pressing the place name in the search result list. · The navigation function is displayed in list form at the point where the direction changes, and you can check the way from the current location by tapping that point. · During navigation, tap the update button on the upper left to update the route from the current location you are moving. ◆ Automatic navigation function installation: After transitioning to the navigation screen, when you tap the "AUTO" button in the upper right corner, automatic navigation with instruction indication popup at the corner and voice announcement (earphone OK) starts. Tap "OFF" to exit the automatic navigation mode. As the map scrolls in rotation according to the direction in which you are walking, depending on the way you are walking, it will not be said "Which way are you heading?", You can go smoothly to your destination . Also, in the case of the automatic navigation mode, even if you are using other applications, even if you turn off the screen, you are updating your location information so you will announce with an announcement when you reach the corner. In other words, if you are walking with earphones inserted, the iPhone will tell you which way you can go next, even if it is in your pocket. ※Caution Since the automatic navigation mode is always functioning to update the current location information, the battery consumption increases. If you do not use it, turn it off, please close the application and be careful not to waste the battery. ◆ Direct calling to the search result phone number: · Equipped with call function from search result annotation. You can call the store directly from this application. ◆ SNS / memo posting function: You can post to SNS (Twitter, LINE, Facebook, etc.) and memos from the current location button. Depending on the app, you can also post images. ◆ With search word history function: · When you tap the BookMark button on the search bar, the history of the word searched up to now is displayed in list form below the search bar. It is now possible to search by selecting the word selected from the list. · The history data can be deleted all in the history by tapping "clear history" button displayed in the list. You can also delete any word individually by swiping each history word to the left. ※ The maximum number of history words saved is 30 cases. If it exceeds 30, the oldest search word will be deleted. ◆ Search word complementing function (Available for iOS 9.3 and above): · As you enter the search word, data close to the word you are entering is displayed in list format under the search bar. It is now possible to search by selecting the word selected from the list. ◆ Note: Ads will be hidden if you pay.
Screenshots
Verdict
The clearest difference is price: I'm here at Free against Topography's $3.99. I'm here also leads on rating (4.0 vs 2.3) and review sentiment (100% vs 59%). Topography's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
I'm here is free to download; Topography costs $3.99 up front. I'm here sells 1 one-off in-app purchase. Topography asks for nothing beyond the download.
I'm here holds the better App Store score, 4.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 59% of Topography's written reviews are positive against 100% of I'm here's.
Topography ships an update every 2 months, I'm here monthly. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.
| Parameter | Topography | I'm here |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 2.3 (3 ratings) | 4.0 (1 ratings) — better |
| Positive reviews | 58.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Georgios Graikousis | Masashi Sasaoka |
Customer experience
Topography
I'm here
In-app purchases
Topography
No in-app purchases
I'm here
- Ad-free$1.99









