# Vehicle Reservation System vs D

The clearest difference is update cadence: D at weekly against Vehicle Reservation System's monthly. D also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vehicle Reservation System ships an update monthly, D weekly. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Vehicle Reservation System | D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 38 MB | 76 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [WISAWAKAM SOFTWARE COMPANY LIMITED](https://appshunter.io/developer/1661052063) | [D.T.C. ENTERPRISE PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1606075357) |

## What reviewers say

### Vehicle Reservation System

[App page](https://appshunter.io/ios/app/vehicle-reservation-system/id6477540369)

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-gps/id6741318780)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Vehicle Reservation System free?

Vehicle Reservation System is free to download, with no in-app purchases.

### Is D free?

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

### Do Vehicle Reservation System or D have ads?

Neither Vehicle Reservation System nor D shows ads.

### Which is updated more often, Vehicle Reservation System or D?

Vehicle Reservation System ships an update monthly, and D weekly. Most recently, Vehicle Reservation System was updated on October 9, 2026 and D on October 8, 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.*