# ReZARD公式アプリ vs D

The clearest difference is update cadence: D at weekly against ReZARD公式アプリ's monthly. D also leads on device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for ReZARD公式アプリ against 5.0 for D. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

ReZARD公式アプリ ships an update monthly, D weekly. The most recent releases landed on June 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ReZARD公式アプリ | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/rezard/id6745264245/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/d-lab/id6745396642/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 52.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | Free |
| Size | 8 MB | 106 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ReZARD](https://appshunter.io/developer/1803535876) | [keigo matsumaru](https://appshunter.io/developer/1405989123) |

## What reviewers say

### ReZARD公式アプリ

[App page](https://appshunter.io/ios/app/rezard/id6745264245)

Access exclusive premium video content and blog posts from the web, now available on your smartphone. Enjoy seamless browsing with tag and keyword search, picture-in-picture viewing for multitasking, and a stress-free user experience.

**Highlights:** Exclusive video content, Premium blog posts, Tag and keyword search, Picture-in-picture viewing, Smooth UI design, Offline content access

**Features:** macOS Compatibility

**In-app purchases:** none


### D

[App page](https://appshunter.io/ios/app/d-lab/id6745396642)

Learn psychology with AI-powered video content and interactive tools. Access thousands of videos, get personalized advice from an AI assistant, and explore various expert-led sub-channels. This service helps you apply knowledge to enrich your life.

**Highlights:** AI-powered psychology video library, AI DaiGo assistant for questions, AI-generated podcasts and slides, Automated video chaptering, AI goal achievement coaching, Expert-led sub-channels

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

**In-app purchases:** none


## Frequently asked questions

### Is ReZARD公式アプリ free?

ReZARD公式アプリ is free to download, with no in-app purchases.

### Is D free?

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

### Which has better reviews, ReZARD公式アプリ or D?

ReZARD公式アプリ and D are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do ReZARD公式アプリ or D have ads?

Neither ReZARD公式アプリ nor D shows ads.

### Which is updated more often, ReZARD公式アプリ or D?

ReZARD公式アプリ ships an update monthly, and D weekly. Most recently, ReZARD公式アプリ was updated on June 5, 2026 and D on September 19, 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.*