# Periodic Table AI vs Just One Interview

The clearest difference is iOS requirement: Periodic Table AI at 15.1 against Just One Interview's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Periodic Table AI sells 2 in-app purchases, starting at $1.99 per 7 days and Just One Interview sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Periodic Table AI | Just One Interview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 48 MB | 10 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jenny Gomez Villar Juarez](https://appshunter.io/developer/1855012892) | [Auring Technologies LLP](https://appshunter.io/developer/1785340593) |

## What reviewers say

### Periodic Table AI

[App page](https://appshunter.io/ios/app/periodic-table-ai-chemsolver/id6758071241)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly_Premium | $1.99 | per 7 days |
| Yearly_Premium | $29.99 | per year |


### Just One Interview

[App page](https://appshunter.io/ios/app/just-one-interview-ai-prep/id6760548168)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AiIA Basic | $4.99 | per month |
| AiIA Pro | $9.99 | per month |


## Frequently asked questions

### Is Periodic Table AI free?

Periodic Table AI is free to download, with in-app purchases available.

### Is Just One Interview free?

Just One Interview is free to download, with in-app purchases available.

### Do Periodic Table AI or Just One Interview have ads?

Neither Periodic Table AI nor Just One Interview shows ads.

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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.*