# Teradek Serv vs BLACKSLATE7

Teradek Serv and BLACKSLATE7 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Teradek Serv ships an update every 4 months, BLACKSLATE7 every 3 months. The most recent releases landed on October 4, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Teradek Serv | BLACKSLATE7 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (6 ratings)](https://appshunter.io/ios/app/blackslate7/id6443485693/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 20.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 66 MB | 19 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Teradek](https://appshunter.io/developer/450852792) | [Lummico Sp. z o.o.](https://appshunter.io/developer/1645077423) |

## What reviewers say

### Teradek Serv

[App page](https://appshunter.io/ios/app/teradek-serv/id1611211791)

**Features:** macOS Compatibility

**In-app purchases:** none


### BLACKSLATE7

[App page](https://appshunter.io/ios/app/blackslate7/id6443485693)

This app transforms your smartphone into a programmable clapperboard for film and TV production. Easily load custom images or pre-set templates onto a compatible physical slate using NFC technology. Adjust image contrast and create grayscale effects for optimal visual output.

**Highlights:** Program images onto physical slate via NFC, Load pre-set SLATE templates, Create custom clapperboard images, Crop, scale, and rotate images, Adjust black/white threshold for contrast, Unique dithering control for grayscale simulation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Teradek Serv free?

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

### Is BLACKSLATE7 free?

BLACKSLATE7 is free to download, with no in-app purchases.

### Do Teradek Serv or BLACKSLATE7 have ads?

Neither Teradek Serv nor BLACKSLATE7 shows ads.

### Which is updated more often, Teradek Serv or BLACKSLATE7?

Teradek Serv ships an update every 4 months, and BLACKSLATE7 every 3 months. Most recently, Teradek Serv was updated on October 4, 2026 and BLACKSLATE7 on September 23, 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.*