# PrimeThink vs Frontier

The clearest difference is in-app purchases: PrimeThink at none against Frontier's 6. PrimeThink also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Frontier sells 6 in-app purchases, starting at $1.99 per 7 days. PrimeThink asks for nothing beyond the download.

PrimeThink ships an update every 3 weeks, Frontier monthly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PrimeThink | Frontier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 67 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Novaware Ltd](https://appshunter.io/developer/1502285848) | [Appkitekt Ltd.](https://appshunter.io/developer/1771314634) |

## What reviewers say

### PrimeThink

[App page](https://appshunter.io/ios/app/primethink/id6744278915)

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

**In-app purchases:** none


### Frontier

[App page](https://appshunter.io/ios/app/frontier-ai-cognitive-coach/id6762355060)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frontier Weekly Smart Mode | $1.99 | per 7 days |
| Frontier Weekly Genius Mode | $2.99 | per 7 days |
| Frontier Monthly Smart Mode | $5.99 | per month |
| Frontier Monthly Genius Mode | $8.99 | per month |
| Frontier Yearly Smart Mode | $44.99 | per year |
| Frontier Yearly Genius Mode | $69.99 | per year |


## Frequently asked questions

### Is PrimeThink free?

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

### Is Frontier free?

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

### Do PrimeThink or Frontier have ads?

Neither PrimeThink nor Frontier shows ads.

### Which is updated more often, PrimeThink or Frontier?

PrimeThink ships an update every 3 weeks, and Frontier monthly. Most recently, PrimeThink was updated on October 30, 2026 and Frontier 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.*