Two platforms both promise computer-based IELTS mock tests, both let you start free, and both offer tools for teachers. From the outside they look almost the same, so it is easy to pick one at random and hope it works out.
The differences show up once you start practising: how your Speaking is marked, whether you practise on a phone or a computer, and how you pay. This OneIELTS vs IELTSArena comparison walks through those differences so you can choose the platform that matches the way you actually prepare.
In one line: OneIELTS suits students who want phone apps, instant AI scoring on Writing and Speaking and a large library of study material, while IELTSArena suits students who want free full Cambridge-style Academic mocks, examiner marking for Speaking and fixed one-time plans with no auto-renewal.
Every fact about OneIELTS on this page comes from its own website, pricing page or app store listings, checked on 29 September 2026. Where a detail was not published, or where its own pages gave different figures, it is marked [VERIFY] rather than guessed.
OneIELTS vs IELTSArena: what you are really choosing between
A long list of features does not raise your band. A handful of practical questions does, and they are worth answering before you pay for anything.
Where will you practise? The real IELTS is now taken on a computer. Practising on a laptop builds the habits you need on test day, such as highlighting, typing essays and moving between questions. A phone app is convenient for short drills on the go, but it is a different experience from the exam screen.
Who marks your Writing and Speaking? Some platforms give an AI band in seconds. Others use human markers, and some combine the two. Each approach answers a different question: an AI score tells you roughly where you are right now, while a human marker can tell you why a particular answer held your band down.
How much practice material do you need? A platform built around full mock tests suits a student who wants exam rehearsal. A platform that also offers templates, grammar hubs and question-type guides suits a student who is still building skills.
How do you want to pay? A one-time plan that ends on a fixed date and a subscription work differently, especially if your test date moves.
Why comparing IELTS practice platforms usually goes wrong
Students often choose a platform in a few minutes and then spend months on it. A few common mistakes make that choice harder than it needs to be.
The first is trusting the biggest number. Test counts on homepages vary, and one platform can publish different figures on different pages. What matters is whether the tests you will actually use are full-length, timed and marked in a way you can learn from.
The second is treating every score as the same kind of score. An instant AI band and an examiner's band are both useful, but they are not interchangeable. If Speaking is your weakest skill, find out exactly who, or what, will be listening to you.
The third is practising only on a phone. Apps are excellent for vocabulary, question types and quick sections. They cannot fully copy typing a 250-word essay against a timer on a computer screen, which is what you will do on the day.
The fourth is skipping the free attempt. Both OneIELTS and IELTSArena let you sit a full mock without paying. One free attempt on each tells you more than any feature list, including this one.
An example: choosing between OneIELTS and IELTSArena
This is an illustrative example of a typical decision, not a real user of either platform. [VERIFY: replace with a real student story, with permission, if available]
Sujata lives in Kathmandu, Nepal, and has an offer for a postgraduate course in Australia that needs Band 6.5 overall with no skill below 6.0. Her last test gave her 6.0 overall: Listening 6.5, Reading 6.0, Writing 5.5 and Speaking 6.0. She has twelve weeks until her next test date.
She tries a free mock on both platforms. On OneIELTS she likes the phone app, which lets her practise question types on the bus, and the quick AI scoring on her Writing. On IELTSArena she sits a full Cambridge-style Academic mock on her laptop and notices how much slower her typing is under the timer than she expected.
"My problem was not a lack of questions," Sujata says in this example. "My Writing was stuck at 5.5 and I needed to rehearse the real computer exam and hear what an examiner thought of my Speaking. A plan that covered all twelve weeks in one payment made it simple."
A different student, who studies mostly on a phone, wants instant AI feedback on Speaking every day, or prefers a big library of templates and study guides, could sensibly choose OneIELTS instead.
What the data says about how IELTS is marked
The official IELTS scoring rules show why the way a platform marks your work matters as much as how many tests it has.
IELTS stopped offering its paper-based test from mid-2026, so every IELTS test is now taken on a computer (IELTS, March 2026). Regular practice on a computer-delivered interface is now part of basic preparation, not an optional extra.
IELTS Writing is marked against four criteria that carry equal weight, so each is worth 25% of the score for a task, and Task 2 counts for more than Task 1 (IELTS, scoring in detail). Feedback that names your weakest criterion in Task 2 points you to the fastest gain.
IELTS Speaking is also marked against four equally weighted criteria (IELTS, scoring in detail). Pronunciation counts for exactly as much as Fluency and Coherence, so one weak area can hold the whole Speaking band back.
Your overall band is the average of your four skill bands. An average ending in .25 is rounded up to the next half band, and one ending in .75 is rounded up to the next whole band (IELTS, scoring in detail). In Sujata's example, raising Writing from 5.5 to 6.5 would lift her average from 6.0 to 6.25, which rounds up to 6.5.
OneIELTS vs IELTSArena: feature comparison
| Feature | OneIELTS | IELTSArena |
|---|---|---|
| Exams covered | IELTS (no other exams found) [VERIFY] | IELTS only |
| Paid plans | VIP plans priced from $9.99 to $99.99 (USD); one-month, three-month and six-month plans mentioned [VERIFY per-plan prices] | ₹99 for 4 days (Trial), ₹699 for 30 days, ₹1,299 for 60 days, ₹1,599 for 90 days, ₹2,999 for 180 days |
| Auto-renewal | Not published [VERIFY] | No, one-time payment |
| Free tier | Full-length mock tests free; scoring, answer explanations, expert feedback and AI scoring are limited; study roadmap locked | Free full Academic mock tests (Cambridge-style Books 20 to 22) [VERIFY count] |
| Number of full mocks | "100+ Mock Tests" on the website; "1,000+ mock tests" on Google Play [VERIFY] | [VERIFY] |
| Section tests and question types | "400+ Section Tests" and "35+ IELTS question types" | [VERIFY] |
| Computer-based exam interface | Yes, "built to match the IELTS computer-delivered format" (their site) [VERIFY interface] | Yes, with highlighter, notes, question navigator, contrast and text size options |
| AI Writing scoring | Yes, "scoring in seconds" | Yes, automatic on submission [VERIFY] |
| AI Speaking scoring | Yes, AI band scoring listed for Speaking | No instant AI score; Speaking is marked by examiners, supported by AI |
| Human marking | Expert Writing and Speaking feedback (limited on free, unlimited on VIP) | Speaking examiner marking, and Writing recheck requests on paid plans (up to 5 a month) |
| One-to-one sessions | 45-minute live sessions; price not published [VERIFY] | Not offered [VERIFY] |
| Academic and General Training | Both | Both; Academic has far more full mocks than General Training [VERIFY counts] |
| Study material | Templates, grammar and vocabulary hubs, question-type guides, a crash course in Bangla, free AI checkers | Mainly tests, plus a free band calculator |
| Mobile app | Android and iOS apps | No app; the website can be installed on your phone |
| Tools for teachers and institutes | Free Teacher Mode to track linked students; B2B plans on request | Teacher Mode for any teacher, plus an institute portal with batches and assignments |
What OneIELTS does well
- Apps on both Android and iOS. If most of your study time happens on a phone, OneIELTS gives you native apps for both platforms, which is useful for short sessions between classes or work.
- AI scoring across all four skills. OneIELTS lists AI band scoring for Listening, Reading, Writing and Speaking, so you can get a quick Speaking estimate after each attempt instead of waiting.
- Human feedback as well as AI. Its VIP tier includes expert feedback on both Writing and Speaking, and it also offers 45-minute live one-to-one sessions for students who want more guidance.
- A wide library beyond tests. Templates, grammar and vocabulary hubs, question-type guides, free AI checkers for essays and letters, and a crash course taught in Bangla make it more of a study platform than a test bank.
What IELTSArena does well
- Free full Cambridge-style Academic mocks. You can sit complete Academic mock tests free and see your level before spending anything.
- An exam screen modelled on the real test. The highlighter, notes, question navigator, and contrast and text size options follow the computer-delivered IELTS layout.
- Examiner marking for Speaking. Speaking answers are marked by examiners who use AI suggestions but make the final call themselves.
- Writing rechecks. Paid students who disagree with a Writing band can request a recheck, up to five a month.
- Fixed one-time plans. Plans run from a 4-day trial to 180 days, are paid once and never renew on their own, so you can match the plan to your test date.
- Tools for classes and institutes. Teacher Mode links students to any teacher, and the institute portal adds batches and assignments.
Which one should you pick?
- You mostly practise on a phone: OneIELTS, because it has native Android and iOS apps.
- You want an instant AI Speaking band after every attempt: OneIELTS lists AI scoring for Speaking.
- You want live one-to-one lessons alongside your practice: OneIELTS offers 45-minute live sessions; check the price on its site first.
- You are still building skills and want templates, grammar and question-type guides in one place: OneIELTS has the larger study library.
- You want to rehearse full Academic mocks on a computer before paying: IELTSArena, with free full Cambridge-style Academic mocks.
- You want your Speaking marked by an examiner, or the option to challenge a Writing band: IELTSArena.
- You want a fixed price that ends on a known date with no renewal: IELTSArena's one-time plans. OneIELTS's renewal terms were not published on the pages we checked [VERIFY].
- You are a teacher: both have a Teacher Mode. OneIELTS's is free for tracking students; IELTSArena adds an institute portal with batches and assignments. Try both with a few students before deciding.
How IELTSArena fits into your IELTS preparation
IELTSArena is built for one job: getting you ready for the computer-delivered IELTS exam. If you already know the question types and now need exam rehearsal with useful marking, that is where it fits.
Each mock runs on a screen that follows the real test layout, with a highlighter, notes, a question navigator and display options, so test day feels familiar.
Writing is scored automatically when you submit, and paid students can ask for a recheck if a band looks wrong. Speaking is marked by examiners supported by AI, so the band you get reflects a human judgement.
Plans are paid once, from a 4-day trial to a 180-day plan, and never renew automatically. You can start your free practice and upgrade only when you know you need more.
Self-diagnosis: what does your preparation need right now?
Answer these five questions before you choose a platform.
- Where do you study most, on a phone or on a laptop? If it is a phone, remember that the exam itself is on a computer, and plan some full mocks on one.
- Which skill is furthest below your target band? If it is Writing or Speaking, the way those skills are marked matters more than test volume.
- Do you want a number quickly, or an explanation from a person? Instant AI scores suit daily checks; human marking suits finding out why a band is stuck.
- Do you still need to learn question types and templates? If yes, a platform with study material helps; if not, focus on full timed mocks.
- How many weeks until your test, and could the date move? This decides whether a short plan, a long plan or a subscription makes sense.
See where you stand today
The simplest way to settle OneIELTS vs IELTSArena is to sit a free full mock on each and compare how the experience and the feedback feel.
Take a free full IELTS mock test on IELTSArena and you will see your current band for each skill after one sitting. When you are ready to keep going, start your free practice with no card needed.
Frequently Asked Questions
Is OneIELTS good for IELTS preparation?
OneIELTS offers computer-based IELTS mock tests for both Academic and General Training, section tests, and practice across more than 35 question types. It lists AI band scoring for all four skills, including Speaking, and its VIP tier adds expert human feedback on Writing and Speaking. It also has Android and iOS apps and a large library of templates, grammar hubs and study guides. You can take full-length mock tests free, although scoring and feedback on the free tier are limited. Its website and app listing give different mock test totals, so check the current number before you rely on it.
How much does OneIELTS cost compared with IELTSArena?
OneIELTS lists its VIP plans in US dollars, in a range from $9.99 to $99.99, and its pricing page mentions one-month, three-month and six-month plans. The exact price of each plan is shown on the live pricing page, so check it there before you buy. IELTSArena charges one-time fees in rupees: ₹99 for a 4-day trial, ₹699 for 30 days, ₹1,299 for 60 days, ₹1,599 for 90 days and ₹2,999 for 180 days. IELTSArena plans never renew automatically, so you only pay again if you choose to. Compare the total cost across your whole preparation period, not just the first month.
Does IELTSArena give an instant AI score for IELTS Speaking?
No. On IELTSArena, Speaking answers are marked by examiners who see AI suggestions but make the final decision themselves, so your Speaking band is not shown the moment you finish. Writing works differently: it is scored automatically when you submit, and paid students can request a recheck of a Writing band up to five times a month. If you want an instant AI Speaking band after every practice attempt, OneIELTS lists AI scoring for Speaking. Many students use quick AI estimates for daily practice and human marking to find out why their band is stuck.
Can I take a free IELTS mock test on OneIELTS and IELTSArena?
Yes, both platforms let you sit a full-length mock test free. On OneIELTS the free tier includes full-length mocks, but scoring, answer explanations and feedback are limited until you upgrade to VIP. IELTSArena offers free full Cambridge-style Academic mock tests. Taking one free mock on each platform is the most reliable way to compare them, because you see how the timer, highlighting and question navigation behave. Use your result to find your weakest skill, since raising one skill by a full band, such as Writing from 5.5 to 6.5, can lift your overall band.
Which platform is better for IELTS teachers and institutes?
Both platforms offer tools for teachers. OneIELTS has a free Teacher Mode: you share your Teacher ID with students and then see their test history, band scores, skill performance and progress. It also mentions B2B plans for instructors, available on request. IELTSArena offers Teacher Mode for any teacher, plus an institute portal where you can organise students into batches and set assignments. Neither publishes institute pricing on the pages we checked. The fairest way to decide is to link a small group of your own students to each platform for a couple of weeks and compare how useful the reports are.
Sources and last update
Last updated: 29 September 2026. Facts were checked on that date from:
- OneIELTS homepage: https://oneielts.com/
- OneIELTS pricing page: https://oneielts.com/pricing
- OneIELTS free mock test page: https://oneielts.com/free-mock-test
- OneIELTS about page: https://oneielts.com/about-us
- OneIELTS Teacher Mode: https://oneielts.com/ielts-teacher-mode
- OneIELTS private sessions: https://oneielts.com/private-sessions
- OneIELTS sitemap: https://oneielts.com/sitemap.xml
- OneIELTS app on Google Play: https://play.google.com/store/apps/details?id=com.one.ielts_prep_app
- OneIELTS app on the App Store: https://itunes.apple.com/lookup?id=6743709932&country=us
- IELTS, updates to IELTS test delivery (5 March 2026): https://ielts.org/news-and-insights/updates-to-ielts-test-delivery
- IELTS, scoring in detail: https://ielts.org/take-a-test/your-results/ielts-scoring-in-detail
OneIELTS is a trademark of its owner and is named here only to identify the product. IELTSArena is not affiliated with OneIELTS. Prices and features change, so check each website before you buy. Spotted something out of date? Email support@ieltsarena.com and we will correct it.