# AI Certify vs PerciFi

The clearest difference is update cadence: PerciFi at weekly against AI Certify's every 3 weeks. PerciFi also leads on ratings volume (6 vs 1) and iOS requirement (13.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. AI Certify sells 1 in-app purchase, starting at $4.99 per month and PerciFi sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for AI Certify against 5.0 for PerciFi. That said, the two scores are not equally well evidenced: PerciFi has 6 ratings behind it against 1, so its average is the more settled of the two.

AI Certify ships an update every 3 weeks, PerciFi weekly. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | AI Certify | PerciFi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ai-certify/id6742496389/reviews) | [5.0 (6 ratings)](https://appshunter.io/ios/app/percifi/id6758317727/reviews) |
| Number of ratings | 1 | **6** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 6 MB | 52 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [APPCITY Limited Liability Company](https://appshunter.io/developer/1534242389) | [Zahan Meyer](https://appshunter.io/developer/1848614992) |

## What reviewers say

### 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 |


### PerciFi

[App page](https://appshunter.io/ios/app/percifi/id6758317727)

This app makes learning about Bitcoin and blockchain technology simple and interactive. It covers fundamental concepts, wallet security, DeFi, and NFTs through easy-to-digest lessons.

**Highlights:** Bite-sized interactive lessons, Bitcoin and blockchain fundamentals, Wallet security and self-custody, DeFi protocols and yield strategies, NFT basics and marketplace navigation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PerciFi Pro - Monthly | $14.99 | per month |
| PerciFi Pro - Annual | $99.99 | per year |


## Frequently asked questions

### Is AI Certify free?

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

### Is PerciFi free?

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

### Which has better reviews, AI Certify or PerciFi?

AI Certify and PerciFi are both rated 5.0 out of 5 on the App Store, from 1 and 6 ratings respectively.

### Do AI Certify or PerciFi have ads?

Neither AI Certify nor PerciFi shows ads.

### Which is updated more often, AI Certify or PerciFi?

AI Certify ships an update every 3 weeks, and PerciFi weekly. Most recently, AI Certify was updated on October 18, 2026 and PerciFi on October 24, 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.*