# Cashflow Engineers vs AI Certify

The clearest difference is in-app purchases: Cashflow Engineers at none against AI Certify's 1. Cashflow Engineers also leads on iOS requirement (15.1 vs 17.0). AI Certify's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price and device support there is nothing between them.

Both are free to download. AI Certify sells 1 in-app purchase, starting at $4.99 per month. Cashflow Engineers asks for nothing beyond the download.

Cashflow Engineers ships an update every 5 months, AI Certify every 3 weeks. The most recent releases landed on September 8, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Cashflow Engineers | AI Certify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ai-certify/id6742496389/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Freemium |
| Size | 88 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Maestro Marketing LLC](https://appshunter.io/developer/1683483509) | [APPCITY Limited Liability Company](https://appshunter.io/developer/1534242389) |

## What reviewers say

### Cashflow Engineers

[App page](https://appshunter.io/ios/app/cashflow-engineers/id6448095223)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Certify

[App page](https://appshunter.io/ios/app/ai-certify/id6742496389)

Prepare for professional certifications with AI-powered practice tests and personalized study materials. Track your progress, focus on weak areas, and study offline. Offers a premium, ad-free experience for IT, cloud, and business professionals.

**Highlights:** AI-powered practice tests, Personalized learning paths, Smart progress tracking, Offline access, Detailed answer explanations, Continuously updated question bank

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |


## Frequently asked questions

### Is Cashflow Engineers free?

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

### Is AI Certify free?

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

### Do Cashflow Engineers or AI Certify have ads?

Cashflow Engineers shows ads; AI Certify does not.

### Which is updated more often, Cashflow Engineers or AI Certify?

Cashflow Engineers ships an update every 5 months, and AI Certify every 3 weeks. Most recently, Cashflow Engineers was updated on September 8, 2026 and AI Certify on September 14, 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.*