# Achakey vs SMART HUD

The clearest difference is ads: SMART HUD at none against Achakey's shown. SMART HUD also leads on iOS requirement (13.0 vs 15.2). Achakey's advantage is update cadence (every 3 weeks vs every 4 months). On price, 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.

Achakey ships an update every 3 weeks, SMART HUD every 4 months. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Achakey | SMART HUD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (6 ratings)](https://appshunter.io/ios/app/achakey/id1457930033/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 82 MB | 4 MB |
| Requires iOS | 15.2 | **13.0** |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Tuneit Inc.](https://appshunter.io/developer/1409993138) | [RoadPia Co., Ltd.](https://appshunter.io/developer/366252913) |

## What reviewers say

### Achakey

[App page](https://appshunter.io/ios/app/achakey/id1457930033)

Control your car's locks remotely using your smartphone. Share digital car keys with trusted individuals and manage all your vehicle access in one place. Supports specific smart box and digital key systems.

**Highlights:** Lock and unlock car doors remotely, Share digital car keys, Store multiple car keys, Supports Achakey Smart Box, Supports KG Mobility Digital Smart Key, Supports Kia AutoQ The Driving App Key

**In-app purchases:** none


### SMART HUD

[App page](https://appshunter.io/ios/app/smart-hud/id1603048002)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Achakey free?

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

### Is SMART HUD free?

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

### Do Achakey or SMART HUD have ads?

Achakey shows ads; SMART HUD does not.

### Which is updated more often, Achakey or SMART HUD?

Achakey ships an update every 3 weeks, and SMART HUD every 4 months. Most recently, Achakey was updated on October 4, 2026 and SMART HUD on October 6, 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.*