# TTRS Video vs NKP Smart

The clearest difference is iOS requirement: TTRS Video at 12.0 against NKP Smart's 15.6. 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.

TTRS Video ships an update every 2 months, NKP Smart monthly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TTRS Video | NKP Smart |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | — |
| Size | 43 MB | 68 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NECTEC](https://appshunter.io/developer/440151026) | [IBSX](https://appshunter.io/developer/1437362985) |

## What reviewers say

### TTRS Video

[App page](https://appshunter.io/ios/app/ttrs-video/id1467360876)

This app facilitates video communication for individuals with hearing impairments, enabling them to converse with hearing individuals through sign language and text interpretation by a communication assistant. It bridges communication gaps by translating sign language to speech and vice versa.

**Highlights:** Video relay communication, Sign language interpretation, Text-to-speech translation, Speech-to-sign language translation, Smartphone and tablet support, Internet connectivity required

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

**In-app purchases:** none


### NKP Smart

[App page](https://appshunter.io/ios/app/nkp-smart/id1552828116)

**In-app purchases:** none


## Frequently asked questions

### Is TTRS Video free?

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

### Is NKP Smart free?

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

### Do TTRS Video or NKP Smart have ads?

Neither TTRS Video nor NKP Smart shows ads.

### Which is updated more often, TTRS Video or NKP Smart?

TTRS Video ships an update every 2 months, and NKP Smart monthly. Most recently, TTRS Video was updated on October 23, 2026 and NKP Smart on October 25, 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.*