# DDS GP vs Kois Reader

The clearest difference is review sentiment: DDS GP at 79% against Kois Reader's 20%. DDS GP also leads on rating (4.7 vs 3.6) and update cadence (fortnightly vs every 9 months). Kois Reader's advantage is in-app purchases (none vs 5) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. DDS GP sells 5 in-app purchases, starting at $89.00 per month. Kois Reader asks for nothing beyond the download.

DDS GP holds the better App Store score, 4.7 against 3.6. Both are backed by a comparable volume of ratings — 11 and 10 respectively. Written reviews point the same way: 79% of DDS GP's written reviews are positive against 20% of Kois Reader's.

DDS GP ships an update fortnightly, Kois Reader every 9 months. The most recent releases landed on September 21, 2026 and August 14, 2026 respectively.

## The numbers

| Metric | DDS GP | Kois Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (11 ratings)](https://appshunter.io/ios/app/dds-gp/id386704683/reviews)** | [3.6 (10 ratings)](https://appshunter.io/ios/app/kois-reader/id1132199528/reviews) |
| Number of ratings | **11** | 10 |
| Positive reviews | **78.8% of reviews** | 20.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 9 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 252 MB | 75 MB |
| Requires iOS | 17.5 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Kick Your Apps, Inc.](https://appshunter.io/developer/386704686) | [Kois Center](https://appshunter.io/developer/513136947) |

## What reviewers say

### DDS GP

[App page](https://appshunter.io/ios/app/dds-gp/id386704683)

This application helps dental professionals visually explain oral health conditions and treatment options to their patients. It allows users to draw on the screen, add their own images, and create custom treatment plans for printing or sending.

**Highlights:** Visual patient consultations, Tap and drag to show conditions, On-screen drawing and saving, Add and draw on custom images, Custom treatment plan creation, Over 200 demonstrations

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $89.00 | per month |
| Yearly | $499.00 | per year |
| Yearly Special | $499.99 | per year |
| DDS YES Homoly Content | $99.99 | one-time |
| Lifetime Membership | $1699.99 | one-time |


### Kois Reader

[App page](https://appshunter.io/ios/app/kois-reader/id1132199528)

Access Kois Course materials, including manuals, checklists, and videos. Features live polling, automatic note backup and syncing across devices, and the ability to share notes with other participants. Requires course attendance for full access.

**Highlights:** Access course manuals and videos, Live in-course polling, Automatic note backup and sync, Share notes with participants, Browse page thumbnails, Navigation history

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

**In-app purchases:** none


## Frequently asked questions

### Is DDS GP free?

DDS GP is free to download, with in-app purchases available.

### Is Kois Reader free?

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

### Which has better reviews, DDS GP or Kois Reader?

DDS GP is rated higher. DDS GP averages 4.7 out of 5 from 11 ratings, while Kois Reader averages 3.6 from 10 ratings.

### Do DDS GP or Kois Reader have ads?

DDS GP shows ads; Kois Reader does not.

### Which is updated more often, DDS GP or Kois Reader?

DDS GP ships an update fortnightly, and Kois Reader every 9 months. Most recently, DDS GP was updated on September 21, 2026 and Kois Reader on August 14, 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.*