# Certly vs Echo Lang

The clearest difference is in-app purchases: Echo Lang at none against Certly's 1. Echo Lang also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price there is nothing between them.

Both are free to download. Certly sells 1 one-off in-app purchase. Echo Lang asks for nothing beyond the download.

Certly ships an update every 2 months, Echo Lang every 3 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Certly | Echo Lang |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/certly-ai-certification-prep/id6760678168/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 13 MB | 22 MB |
| Requires iOS | 26.2 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gabriel Pevide](https://appshunter.io/developer/1868143046) | [阳帝 李](https://appshunter.io/developer/6772016398) |

## What reviewers say

### Certly

[App page](https://appshunter.io/ios/app/certly-ai-certification-prep/id6760678168)

Prepare for AI Architect certification exams with AI-powered study tools. Practice with realistic simulations, detailed explanations, and smart review features. Master key domains and build confidence before test day.

**Highlights:** AI-powered prompt writing drills, Study by specific AI domains, Realistic exam simulations, Detailed answer explanations, Spaced repetition review, Daily challenges and streaks, Quick study mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Echo Lang

[App page](https://appshunter.io/ios/app/echo-lang-polyglot-listening/id6772065542)

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

**In-app purchases:** none


## Frequently asked questions

### Is Certly free?

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

### Is Echo Lang free?

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

### Do Certly or Echo Lang have ads?

Certly shows ads; Echo Lang does not.

### Which is updated more often, Certly or Echo Lang?

Certly ships an update every 2 months, and Echo Lang every 3 weeks. Most recently, Certly was updated on October 31, 2026 and Echo Lang 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.*