# SDET Interview Coach vs Laddr

The clearest difference is update cadence: SDET Interview Coach at every 3 days against Laddr's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SDET Interview Coach sells 2 in-app purchases, starting at $5.99 per month and Laddr sells 4 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

SDET Interview Coach ships an update every 3 days, Laddr every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | SDET Interview Coach | Laddr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 44 MB | 77 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Mitchell Agoma](https://appshunter.io/developer/1863538002) | [LADDRCHESS LTD](https://appshunter.io/developer/6784258341) |

## What reviewers say

### SDET Interview Coach

[App page](https://appshunter.io/ios/app/sdet-interview-coach/id6763396692)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SDET Coach Pro - Monthly | $5.99 | per month |
| SDET Coach Pro - Annual | $69.99 | per year |


### Laddr

[App page](https://appshunter.io/ios/app/laddr-improve-your-chess/id6784258339)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Laddr Premium Monthly | $9.99 | per month |
| Laddr Pro Monthly | $19.99 | per month |
| Laddr Premium Yearly | $109.99 | per year |
| Laddr Pro Yearly | $219.99 | per year |


## Frequently asked questions

### Is SDET Interview Coach free?

SDET Interview Coach is free to download, with in-app purchases available.

### Is Laddr free?

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

### Do SDET Interview Coach or Laddr have ads?

Neither SDET Interview Coach nor Laddr shows ads.

### Which is updated more often, SDET Interview Coach or Laddr?

SDET Interview Coach ships an update every 3 days, and Laddr every 3 weeks. Most recently, SDET Interview Coach was updated on October 31, 2026 and Laddr on October 31, 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.*