# Startup AI vs Stackmate

The clearest difference is ads: Stackmate at none against Startup AI's shown. Stackmate also leads on update cadence (every 8 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Startup AI sells 2 in-app purchases, starting at $1.99 per 7 days and Stackmate sells 8 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Startup AI ships an update every 3 weeks, Stackmate every 8 days. The most recent releases landed on October 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Startup AI | Stackmate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/startup-ai-idea-validator/id6503181090/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 63 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Ashish Kapoor](https://appshunter.io/developer/1646673611) | [Erberk Akbulut](https://appshunter.io/developer/6777452716) |

## What reviewers say

### Startup AI

[App page](https://appshunter.io/ios/app/startup-ai-idea-validator/id6503181090)

Leverage AI to transform your business concept into a concrete plan. Generate over 40 detailed reports covering market research, funding, and operational strategies. Move from initial idea to confident execution with AI-driven insights.

**Highlights:** AI-powered business idea validation, 40+ detailed strategic reports, Market research analysis, Funding and growth strategy, Product and MVP planning, Business model and monetization, Team and operations planning

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $1.99 | per 7 days |
| Monthly Subscription | $12.99 | per month |


### Stackmate

[App page](https://appshunter.io/ios/app/stackmate-co-founder-match/id6777452714)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackmate Plus | $3.99 | per 7 days |
| Stackmate Pro | $6.99 | per 7 days |
| Stackmate Plus | $9.99 | per month |
| Stackmate Pro | $17.99 | per month |
| Stackmate Plus | $23.99 | per 3 months |
| Stackmate Pro | $41.99 | per 3 months |
| Stackmate Plus | $71.99 | per year |
| Stackmate Pro | $131.99 | per year |


## Frequently asked questions

### Is Startup AI free?

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

### Is Stackmate free?

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

### Do Startup AI or Stackmate have ads?

Startup AI shows ads; Stackmate does not.

### Which is updated more often, Startup AI or Stackmate?

Startup AI ships an update every 3 weeks, and Stackmate every 8 days. Most recently, Startup AI was updated on October 1, 2026 and Stackmate on September 18, 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.*