Comparison

FixoLang vs Thunderbolt24

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

Head to head
About

FixoLang

This app offers AI-powered IELTS speaking practice and personalized feedback to help users achieve high band scores. It includes a vast library of practice topics and expert guidance on grammar, vocabulary, and pronunciation.

Highlights
  • AI-powered speaking assessment
  • Extensive practice library
  • Personalized feedback on grammar and vocabulary
  • Pronunciation and MTI assistance
  • 24/7 learning companion
Features
Read full description

Transform your IELTS preparation with FixoLang, the ultimate tool designed for aspirants targeting an 8+ band score in IELTS speaking. Features of FixoLang App (formerly IELTSvarta): • AI-Powered IELTS Speaking Assistant: FixoLang’s advanced AI technology provides real-time assessment as an IELTS speaking pro, offering you an instant IELTS band score to clearly understand your current level. • Extensive IELTS Speaking Practice Library: Dive into our extensive collection of digital flashcards, covering a vast range of IELTS speaking topics for comprehensive IELTS speaking practice. • Personalized Feedback: Our AI tool evaluates your speaking performance, providing detailed feedback on grammar, sentence structure, coherence, and IELTS vocabulary usage. • Strategies for High Band Scores: Get expert guidance to refine your speaking skills for achieving your desired score, including tips for mastering IELTS practice band 9. • 24/7 Learning Companion: Practice anytime with our AI tool, making FixoLang an ideal IELTS preparation app for busy aspirants. Extra Assistance for Pronunciation and MTI Alongside AI-driven insights, gain access to EngVarta’s expert English mentors to tackle pronunciation and Mother Tongue Influence (MTI) challenges, enhancing your IELTS prep experience. FixoLang is not just an app; it’s your personal guide to IELTS success. Whether you’re starting out or aiming for a top score, FixoLang is tailored to meet your needs. Practice, get feedback, improve, and score high with us! Begin your journey to IELTS success with FixoLang.

About

Thunderbolt24

Features
Read full description

Thunderbolt24 is a modern online learning platform designed to help students learn effectively through structured online classes. The app focuses on delivering a smooth and reliable learning experience for students preparing for their academic goals. Whether you're getting ready for exams or improving your understanding of subjects, Thunderbolt24 provides a simple and focused environment for learning.

Screenshots

FixoLang4 screens
Thunderbolt244 screens

Verdict

The call

The clearest difference is in-app purchases: Thunderbolt24 at none against FixoLang's 6. FixoLang's advantage is update cadence (every 9 days vs every 5 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support 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. FixoLang sells 6 one-off in-app purchases. Thunderbolt24 asks for nothing beyond the download.

UpkeepUpdate frequency

FixoLang ships an update every 9 days, Thunderbolt24 every 5 months. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
FixoLang versus Thunderbolt24: the parameters behind the verdict, then further details
ParameterFixoLangThunderbolt24
PriceFreeFree
Rating5.0 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 9 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size65 MB205 MB
Age rating4+4+
DeveloperNGB EDUCATION PRIVATE LIMITEDNikhar Sachdeva

In-app purchases

6 purchases

FixoLang

One-time6
  • Starter$6.99
  • Intermediate$11.99
  • Advanced$19.99
Show 3 more
  • Pro$34.99
  • Elite$69.99
  • Ultimate$99.99
None

Thunderbolt24

No in-app purchases

Questions

Is FixoLang free?
FixoLang is free to download, with in-app purchases available.
Is Thunderbolt24 free?
Thunderbolt24 is free to download, with no in-app purchases.
Do FixoLang or Thunderbolt24 have ads?
Neither FixoLang nor Thunderbolt24 shows ads.
Which is updated more often, FixoLang or Thunderbolt24?
FixoLang ships an update every 9 days, and Thunderbolt24 every 5 months. Most recently, FixoLang was updated on November 3, 2026 and Thunderbolt24 on October 28, 2026.

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