# Kyna Tutor vs PolyPi AI

The clearest difference is review sentiment: Kyna Tutor at 100% against PolyPi AI's 60%. PolyPi AI's advantage is update cadence (every 3 days vs every 3 months) and iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Kyna Tutor sells 3 one-off in-app purchases and PolyPi AI sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Kyna Tutor ships an update every 3 months, PolyPi AI every 3 days. The most recent releases landed on August 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Kyna Tutor | PolyPi AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (15 ratings)](https://appshunter.io/ios/app/kyna-tutor/id1506869739/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 45 MB | 159 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyna](https://appshunter.io/developer/1363004475) | [NGO XUAN DAI](https://appshunter.io/developer/1445334529) |

## What reviewers say

### Kyna Tutor

[App page](https://appshunter.io/ios/app/kyna-tutor/id1506869739)

This app offers personalized English learning programs with live teachers and AI tutors. It focuses on improving all four language skills through interactive lessons and progress tracking. Users can practice pronunciation and receive tailored learning suggestions.

**Highlights:** 1-on-1 English learning programs, AI tutors for pronunciation and suggestions, Personalized learning paths, Interactive online learning, Progress tracking and visual reports, Connect with support team

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package 8 sessions | $14.99 | one-time |
| Package 16 sessions | $29.99 | one-time |
| Package 24 sessions | $44.99 | one-time |


### PolyPi AI

[App page](https://appshunter.io/ios/app/polypi-ai/id6468901370)

Prepare for TOEIC and IELTS exams with an AI-powered English learning assistant. Practice speaking and writing, receive grammar corrections, and get personalized lesson recommendations based on your performance. Optimize your learning journey with accurate scoring and in-depth analysis.

**Highlights:** AI-powered exam preparation, Speaking and writing practice, Grammar correction and suggestions, Automatic translation, Scored practice sessions, Personalized lesson recommendations, Unlimited essay grading

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gói Point | $29.99 | one-time |
| Gói 3 tháng | $29.99 | one-time |
| Gói 6 tháng | $49.99 | one-time |


## Frequently asked questions

### Is Kyna Tutor free?

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

### Is PolyPi AI free?

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

### Do Kyna Tutor or PolyPi AI have ads?

Neither Kyna Tutor nor PolyPi AI shows ads.

### Which is updated more often, Kyna Tutor or PolyPi AI?

Kyna Tutor ships an update every 3 months, and PolyPi AI every 3 days. Most recently, Kyna Tutor was updated on August 7, 2026 and PolyPi AI on October 2, 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.*