Comparison

CenterOnline vs Kyna Tutor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CenterOnline

This app provides parents with comprehensive information about their child's learning progress and achievements at a learning center. It facilitates easy monitoring of student development within the Smart School Interaction System.

Highlights
  • Track learning progress
  • Monitor academic achievements
  • Access center information
  • Smart School Interaction System integration
  • Parental monitoring tool
Features
Read full description

Ứng dụng CenterOnlineForParents nằm trong Hệ thống tương tác trường học Thông minh, cung cấp đầy đủ thông tin của trung tâm cho phụ huynh, giúp phụ huynh có thể dễ dàng theo dõi quá trình học tập, phấn đấu của con tại trung tâm.

About

Kyna Tutor

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
Read full description

- Over 10 years of experience in personalized online learning with teachers. - 10,000+ outstanding teachers worldwide, dedicated to helping students make rapid progress. - Achieve outstanding progress through a personalized learning pathway tailored to each student’s ability, interests, and pace. - Enjoy a dynamic online learning experience with live visual and audio interaction throughout every lesson. Why should you choose Kyna Tutor? - Top 3 KIES Edu Award 2018 for the best educational products. - Top 5 best educational transformation solutions worldwide, honored by leading American educational magazines. - The only Vietnamese children's English application selected for Google Demo Day 2019. - Chosen by over 150,000 users in Vietnam, Thailand, Indonesia, Laos, and other countries. APPLICATION FEATURES: - Effective learning and interaction with teachers directly on the app. - Easily manage schedules and track assignments; quickly book or cancel classes with one touch. - Gain clear insights into learning progress and results; receive visual reports detailing each skill per subject. - Conveniently connect with the support team anytime, anywhere, and receive instant notifications from Kyna Tutor. BENEFITS OF LEARNING AT KYNA TUTOR: - Flexible studying format; learn anytime, anywhere. - Interactive learning with high-quality teachers holding international certifications. - Build a strong foundation in English while developing comprehensive skills. - Improve communication skills and expand future career opportunities. Download Kyna Tutor today and experience personalized online learning at its best! Kyna Tutor – Your personalized online learning platform with dedicated teachers ---- CUSTOMER SERVICES: If you have any questions during use, please do not hesitate to contact Kyna Email: support@kynaenglish.com Website: https://kynaenglish.com/

Screenshots

CenterOnline4 screens
Kyna Tutor4 screens

Verdict

The call

The clearest difference is rating: Kyna Tutor at 4.3 against CenterOnline's 1.8. Kyna Tutor also leads on review sentiment (100% vs 83%) and ratings volume (17 vs 5). CenterOnline's advantage is in-app purchases (none vs 3) and update cadence (every 10 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kyna Tutor sells 3 one-off in-app purchases. CenterOnline asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Kyna Tutor holds the better App Store score, 4.3 against 1.8. Both are backed by a comparable volume of ratings — 5 and 17 respectively. Written reviews point the same way: 83% of CenterOnline's written reviews are positive against 100% of Kyna Tutor's.

UpkeepUpdate frequency

CenterOnline ships an update every 10 days, Kyna Tutor every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
CenterOnline versus Kyna Tutor: the parameters behind the verdict, then further details
ParameterCenterOnlineKyna Tutor
PriceFreeFree
Rating1.8 (5 ratings)4.3 (17 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings517 — better
Update frequencyEvery 10 days — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size61 MB45 MB
Age rating4+4+
DeveloperONLINE MANAGEMENT TRAINING JOINT STOCK COMPANYKyna

Customer experience

CenterOnline

All ratings5 ratings
Positive0.0%
Neutral40.0%
Negative60.0%
Written reviews6 reviews
Positive83.3%
Neutral16.7%
Negative0.0%

Kyna Tutor

All ratings15 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CenterOnline

No in-app purchases

3 purchases

Kyna Tutor

One-time3
  • Package 8 sessions$14.99
  • Package 16 sessions$29.99
  • Package 24 sessions$44.99

Questions

Is CenterOnline free?
CenterOnline is free to download, with no in-app purchases.
Is Kyna Tutor free?
Kyna Tutor is free to download, with in-app purchases available.
Which has better reviews, CenterOnline or Kyna Tutor?
Kyna Tutor is rated higher. CenterOnline averages 1.8 out of 5 from 5 ratings, while Kyna Tutor averages 4.3 from 17 ratings.
Do CenterOnline or Kyna Tutor have ads?
Neither CenterOnline nor Kyna Tutor shows ads.
Which is updated more often, CenterOnline or Kyna Tutor?
CenterOnline ships an update every 10 days, and Kyna Tutor every 3 months. Most recently, CenterOnline was updated on November 6, 2026 and Kyna Tutor on November 3, 2026.

Other comparisons