# FFI vs SDET Interview Coach

The clearest difference is update cadence: SDET Interview Coach at every 3 days against FFI's every 13 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FFI sells 1 one-off in-app purchase and SDET Interview Coach sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

FFI ships an update every 13 months, SDET Interview Coach every 3 days. The most recent releases landed on September 8, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | FFI | SDET Interview Coach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 days** |
| Size | 52 MB | 44 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [Mitchell Agoma](https://appshunter.io/developer/1863538002) |

## What reviewers say

### FFI

[App page](https://appshunter.io/ios/app/ffi/id6618155905)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FREEDOM FROM INFERTILITY | $9.99 | one-time |


### 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 |


## Frequently asked questions

### Is FFI free?

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

### Is SDET Interview Coach free?

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

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

Neither FFI nor SDET Interview Coach shows ads.

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

FFI ships an update every 13 months, and SDET Interview Coach every 3 days. Most recently, FFI was updated on September 8, 2026 and SDET Interview Coach on September 5, 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.*