# PRO type vs KOSO

The clearest difference is in-app purchases: KOSO at none against PRO type's 5. KOSO also leads on update cadence (every 2 weeks vs every 9 months). PRO type's advantage is iOS requirement (9.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. PRO type sells 5 one-off in-app purchases. KOSO asks for nothing beyond the download.

PRO type ships an update every 9 months, KOSO every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | PRO type | KOSO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/koso-k-link/id1601702100/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 4 MB | 210 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DILTS JAPAN, LIMITED LIABILITY CO.](https://appshunter.io/developer/780416956) | [Tong Yah Electronic Technology Co., Ltd.](https://appshunter.io/developer/1050103913) |

## What reviewers say

### PRO type

[App page](https://appshunter.io/ios/app/pro-type-v-fireplus/id1328424681)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GROM JC75 | $3.99 | one-time |
| CYGNUS-X SED8J | $3.99 | one-time |
| CYGNUS-X SEA5J | $3.99 | one-time |
| GROM JC61 | $3.99 | one-time |
| GSX-R125 DL33B/S125 DL32B | $3.99 | one-time |


### KOSO

[App page](https://appshunter.io/ios/app/koso-k-link/id1601702100)

Connect to KOSO meters via Bluetooth to fetch trip data, receive maintenance notifications, and view vehicle diagnostics. It also provides weather forecasts, gas prices, and navigation features, with optional synchronized display on compatible vehicle dashboards.

**Highlights:** Bluetooth connectivity to KOSO meters, Trip record storage, Fuel and maintenance notifications, Vehicle diagnosis, Weather forecast and gas price information, Navigation and routing, Virtual dashboard with real-time OBD data

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PRO type free?

PRO type is free to download, with in-app purchases available.

### Is KOSO free?

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

### Do PRO type or KOSO have ads?

Neither PRO type nor KOSO shows ads.

### Which is updated more often, PRO type or KOSO?

PRO type ships an update every 9 months, and KOSO every 2 weeks. Most recently, PRO type was updated on November 2, 2026 and KOSO on November 3, 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.*