# D vs isiNET

The clearest difference is update cadence: isiNET at every 3 weeks against D's every 16 months. 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.

D ships an update every 16 months, isiNET every 3 weeks. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | D | isiNET |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (64 ratings)](https://appshunter.io/ios/app/isinet/id1473845652/reviews)** |
| Number of ratings | — | **64** |
| Positive reviews | — | 22.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 79 MB | 52 MB |
| Requires iOS | **14.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dreyfous & Associates](https://appshunter.io/developer/601526324) | [Robert Schmidt](https://appshunter.io/developer/1473845651) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-genius-viewer/id1137997606)

**Features:** macOS Compatibility

**In-app purchases:** none


### isiNET

[App page](https://appshunter.io/ios/app/isinet/id1473845652)

This app helps manage school information like grades, attendance, and comments. It aims to boost student performance through effective academic data management and provides reports and graphs for better decision-making.

**Highlights:** Manage assessments and grades, Track attendance, Record comments and references, Generate descriptive reports, Visualize data with graphs, Encourage academic planning

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

**In-app purchases:** none


## Frequently asked questions

### Is D free?

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

### Is isiNET free?

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

### Do D or isiNET have ads?

Neither D nor isiNET shows ads.

### Which is updated more often, D or isiNET?

D ships an update every 16 months, and isiNET every 3 weeks. Most recently, D was updated on September 19, 2026 and isiNET on September 17, 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.*