# Open Data Map vs FreeBuf知识大陆

The clearest difference is review sentiment: FreeBuf知识大陆 at 100% against Open Data Map's 0%. FreeBuf知识大陆 also leads on rating (4.0 vs 3.0). Open Data Map's advantage is in-app purchases (none vs 12) and iOS requirement (11.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. FreeBuf知识大陆 sells 12 one-off in-app purchases. Open Data Map asks for nothing beyond the download.

FreeBuf知识大陆 holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 0% of Open Data Map's written reviews are positive against 100% of FreeBuf知识大陆's.

Open Data Map ships an update fortnightly, FreeBuf知识大陆 every 8 days. The most recent releases landed on June 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Open Data Map | FreeBuf知识大陆 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/open-data-map/id1491419380/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/freebuf/id6444119616/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 30 MB | 126 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Gyecsek](https://appshunter.io/developer/1447946653) | [上海斗象信息科技有限公司](https://appshunter.io/developer/1652462918) |

## What reviewers say

### Open Data Map

[App page](https://appshunter.io/ios/app/open-data-map/id1491419380)

Discover and share location-based open data from organizations and councils worldwide. Visualize datasets on a map, customize your shared information, and explore data from different cities and countries. Request new datasets and stay updated on your favorites.

**Highlights:** Share locations, paths, and polygons, Customizable fields, styles, and categories, Explore datasets globally, Request new datasets, Visualize data on map, Subscribe to dataset updates

**Features:** macOS Compatibility

**In-app purchases:** none


### FreeBuf知识大陆

[App page](https://appshunter.io/ios/app/freebuf/id6444119616)

A private content platform for cybersecurity knowledge sharing and inspiration capture. It connects experts in various network security fields for in-depth discussions and sharing of achievements within dedicated spaces.

**Highlights:** Knowledge sharing platform, Inspiration capture, Private content spaces, Expert community, Cybersecurity focus

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1帮会币 | $0.99 | one-time |
| 6帮会币 | $0.99 | one-time |
| 7帮会币 | $0.99 | one-time |
| 14帮会币 | $2.99 | one-time |
| 28帮会币 | $3.99 | one-time |
| 35帮会币 | $6.99 | one-time |
| 56帮会币 | $11.99 | one-time |
| 70帮会币 | $14.99 | one-time |
| 198帮会币 | $29.99 | one-time |
| 140帮会币 | $29.99 | one-time |
| 298帮会币 | $46.99 | one-time |
| 398帮会币 | $59.99 | one-time |


## Frequently asked questions

### Is Open Data Map free?

Open Data Map is free to download, with no in-app purchases.

### Is FreeBuf知识大陆 free?

FreeBuf知识大陆 is free to download, with in-app purchases available.

### Which has better reviews, Open Data Map or FreeBuf知识大陆?

FreeBuf知识大陆 is rated higher. Open Data Map averages 3.0 out of 5 from 2 ratings, while FreeBuf知识大陆 averages 4.0 from 1 ratings.

### Do Open Data Map or FreeBuf知识大陆 have ads?

Neither Open Data Map nor FreeBuf知识大陆 shows ads.

### Which is updated more often, Open Data Map or FreeBuf知识大陆?

Open Data Map ships an update fortnightly, and FreeBuf知识大陆 every 8 days. Most recently, Open Data Map was updated on June 4, 2026 and FreeBuf知识大陆 on September 23, 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.*