# Topography vs HK Traffic

The clearest difference is price: HK Traffic at Free against Topography's $3.99. HK Traffic also leads on rating (4.8 vs 2.3) and update cadence (every 3 weeks vs every 2 months). Topography's advantage is ads (none vs shown) and review sentiment (59% vs 35%). On in-app purchases, device support and iOS requirement there is nothing between them.

HK Traffic is free to download; Topography costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HK Traffic holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: HK Traffic has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 59% of Topography's written reviews are positive against 35% of HK Traffic's, so the app with the better star average is not the one people write more warmly about.

Topography ships an update every 2 months, HK Traffic every 3 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Topography | HK Traffic |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/topography/id622591557/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/hk-traffic/id1165961260/reviews)** |
| Number of ratings | 3 | **16** |
| Positive reviews | **58.6% of reviews** | 34.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 2 MB | 73 MB |
| Requires iOS | 16.1 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Georgios Graikousis](https://appshunter.io/developer/622591560) | [Chung Yeung Chan](https://appshunter.io/developer/1140508788) |

## What reviewers say

### Topography

[App page](https://appshunter.io/ios/app/topography/id622591557)

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.

**Highlights:** 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

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

**In-app purchases:** none


### HK Traffic

[App page](https://appshunter.io/ios/app/hk-traffic/id1165961260)

This app provides real-time traffic updates for Hong Kong, including road conditions, accidents, and jams. It features interactive maps, live camera feeds, and user-shared traffic news to help you navigate efficiently and find parking.

**Highlights:** Real-time traffic conditions, Live road camera snapshots, User-shared traffic news, Interactive traffic map, Parking availability map, Vehicle maintenance reminders, Journey time predictions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Topography free?

Topography costs $3.99, with no in-app purchases.

### Is HK Traffic free?

HK Traffic is free to download, with no in-app purchases.

### Which has better reviews, Topography or HK Traffic?

HK Traffic is rated higher. Topography averages 2.3 out of 5 from 3 ratings, while HK Traffic averages 4.8 from 16 ratings.

### Do Topography or HK Traffic have ads?

HK Traffic shows ads; Topography does not.

### Which is updated more often, Topography or HK Traffic?

Topography ships an update every 2 months, and HK Traffic every 3 weeks. Most recently, Topography was updated on November 6, 2026 and HK Traffic on November 2, 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.*