# UMLink vs Keras Chatbot

The clearest difference is in-app purchases: UMLink at none against Keras Chatbot's 9. UMLink also leads on ads (none vs shown) and iOS requirement (9.3 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Keras Chatbot sells 9 in-app purchases, starting at $1.99 per month. UMLink asks for nothing beyond the download.

UMLink ships an update monthly, Keras Chatbot every 3 weeks. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | UMLink | Keras Chatbot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/umlink/id1321730743/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 276 MB |
| Requires iOS | **9.3** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Microlinks Technology Co,.Ltd](https://appshunter.io/developer/716442380) | [YIN MA](https://appshunter.io/developer/1761110940) |

## What reviewers say

### UMLink

[App page](https://appshunter.io/ios/app/umlink/id1321730743)

View and record live microscope feeds from M-JPEG compatible devices. Capture snapshots, freeze images, and utilize measurement tools for detailed analysis.

**Highlights:** M-JPEG microscope support, Real-time preview, Snapshot capture, Video recording, Image freeze, Measurement functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Keras Chatbot

[App page](https://appshunter.io/ios/app/keras-chatbot-voice-assistant/id6608969280)

**Features:** Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Base Subscription | $1.99 | per month |
| Professional Subscription | $4.99 | per month |
| Premium Subscription | $8.99 | per month |
| Ultimate Subscription | $12.99 | per month |
| Base Subscription Year | $19.99 | per year |
| Professional Subscription Year | $49.99 | per year |
| Premium Subscription Year | $89.99 | per year |
| Ultimate Subscription Year | $119.99 | per year |
| A small pile of gold coins | $0.99 | one-time |


## Frequently asked questions

### Is UMLink free?

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

### Is Keras Chatbot free?

Keras Chatbot is free to download, with in-app purchases available.

### Do UMLink or Keras Chatbot have ads?

Keras Chatbot shows ads; UMLink does not.

### Which is updated more often, UMLink or Keras Chatbot?

UMLink ships an update monthly, and Keras Chatbot every 3 weeks. Most recently, UMLink was updated on October 14, 2026 and Keras Chatbot on October 18, 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.*