# aRacerOBD vs KOSO Magic

The clearest difference is in-app purchases: aRacerOBD at none against KOSO Magic's 4. aRacerOBD also leads on iOS requirement (10.0 vs 15.0). KOSO Magic's advantage is update cadence (every 3 weeks vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. KOSO Magic sells 4 one-off in-app purchases. aRacerOBD asks for nothing beyond the download.

aRacerOBD ships an update every 8 months, KOSO Magic every 3 weeks. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | aRacerOBD | KOSO Magic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 17 MB | 110 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ARACER SPEEDTEK INC.](https://appshunter.io/developer/1218691866) | [Tong Yah Electronic Technology Co., Ltd.](https://appshunter.io/developer/1050103913) |

## What reviewers say

### aRacerOBD

[App page](https://appshunter.io/ios/app/aracerobd/id1448664407)

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

**In-app purchases:** none


### KOSO Magic

[App page](https://appshunter.io/ios/app/koso-magic/id6444849232)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 KOSO COINS | $0.99 | one-time |
| 60 KOSO COINS | $1.99 | one-time |
| 120 KOSO COINS | $3.99 | one-time |
| 240 KOSO COINS | $6.99 | one-time |


## Frequently asked questions

### Is aRacerOBD free?

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

### Is KOSO Magic free?

KOSO Magic is free to download, with in-app purchases available.

### Do aRacerOBD or KOSO Magic have ads?

Neither aRacerOBD nor KOSO Magic shows ads.

### Which is updated more often, aRacerOBD or KOSO Magic?

aRacerOBD ships an update every 8 months, and KOSO Magic every 3 weeks. Most recently, aRacerOBD was updated on October 10, 2026 and KOSO Magic on October 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.*