# SmartBox Reference Guide vs KYDZ

The clearest difference is rating: KYDZ at 4.1 against SmartBox Reference Guide's 3.1. KYDZ also leads on review sentiment (75% vs 63%). SmartBox Reference Guide's advantage is ratings volume (34 vs 7) and iOS requirement (12.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

KYDZ holds the better App Store score, 4.1 against 3.1. Both are backed by a comparable volume of ratings — 34 and 7 respectively. Written reviews point the same way: 63% of SmartBox Reference Guide's written reviews are positive against 75% of KYDZ's.

SmartBox Reference Guide ships an update fortnightly, KYDZ every 10 days. The most recent releases landed on September 17, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | SmartBox Reference Guide | KYDZ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (34 ratings)](https://appshunter.io/ios/app/smartbox-reference-guide/id1172947942/reviews) | **[4.1 (7 ratings)](https://appshunter.io/ios/app/kydz/id1539109976/reviews)** |
| Number of ratings | **34** | 7 |
| Positive reviews | 62.5% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free | Free |
| Size | 65 MB | 403 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Smart Box Technology, LLC](https://appshunter.io/developer/1172947941) | [Wuxi Kaiyang Electronic Technology Co., Ltd.](https://appshunter.io/developer/1131154502) |

## What reviewers say

### SmartBox Reference Guide

[App page](https://appshunter.io/ios/app/smartbox-reference-guide/id1172947942)

Learn programming concepts through guided lessons. This educational tool breaks down key programming ideas for understanding, not for live coding. Ideal for beginners wanting to grasp fundamental principles.

**Highlights:** Step-by-step programming guidance, Clear explanations of key concepts, Educational training tool, Focus on understanding principles, Suitable for beginners

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

**In-app purchases:** none


### KYDZ

[App page](https://appshunter.io/ios/app/kydz/id1539109976)

This app connects automotive locksmiths to specialized hardware for generating car remotes, smart cards, and performing key profiling. It offers tools like a mechanical key ruler and VIN lookup for efficient locksmithing tasks.

**Highlights:** Car remote control generation, Smart card generation, Key profiling cutting, Mechanical key ruler, Vehicle frame number query, Bluetooth device connectivity

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

**In-app purchases:** none


## Frequently asked questions

### Is SmartBox Reference Guide free?

SmartBox Reference Guide is free to download, with no in-app purchases.

### Is KYDZ free?

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

### Which has better reviews, SmartBox Reference Guide or KYDZ?

KYDZ is rated higher. SmartBox Reference Guide averages 3.1 out of 5 from 34 ratings, while KYDZ averages 4.1 from 7 ratings.

### Do SmartBox Reference Guide or KYDZ have ads?

Neither SmartBox Reference Guide nor KYDZ shows ads.

### Which is updated more often, SmartBox Reference Guide or KYDZ?

SmartBox Reference Guide ships an update fortnightly, and KYDZ every 10 days. Most recently, SmartBox Reference Guide was updated on September 17, 2026 and KYDZ on September 13, 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.*