D1At launchAvailable
Wine Production
20% of the Diploma
One 90-minute written paper. A foundation unit, sat before any other.
More on D1WSET App
Coming soon to iPhone and Android
Exam rehearsal for the WSET Level 4 Diploma in Wines, one unit at a time: full mock papers on the exam's own clock, mark schemes point by point and model answers, with home blind tastings for the tasting units. On your phone, entirely offline.
Independent study aid. Not affiliated with, endorsed by or approved by the Wine & Spirit Education Trust.
The five units
The Diploma has six units. Five end in an exam and the app rehearses each of them, one unit at a time. The ring shows each unit's share of the Diploma.
D1At launchAvailable
20% of the Diploma
One 90-minute written paper. A foundation unit, sat before any other.
More on D1D2At launchAvailable
10% of the Diploma
One 60-minute written paper. Like D1, a foundation unit.
More on D2D3At launchAvailable
50% of the Diploma
Theory: two papers of 2 hours and 1 hour 20 minutes. Tasting: 12 wines blind over two 90-minute papers.
More on D3D4At launchAvailable
5% of the Diploma
One 90-minute exam: theory and three wines blind.
More on D4D5At launchAvailable
5% of the Diploma
One 90-minute exam: theory and three wines blind.
More on D5D6Not in the app
10% of the Diploma
D6, the research assignment, is coursework rather than an exam, so the app does not cover it.
Shares and exam formats from WSET's specification for the Level 4 Diploma in Wines: wsetglobal.com (opens in a new tab)
What is in it
Mock papers in each unit's exam format, on the exam's own clock
Every question with its weighting, its share of the time and its command verbs
Three ways into every question: sit it by hand under the clock, plan it or study it
Mark schemes point by point, with caps and do-not-credit lines, a model answer at distinction standard for every part and a weaker answer with commentary to compare
If the exam were today: an indicative grade against the pass (55%), merit (65%) and distinction (75%) lines
Study cards on spaced repetition, for every part of the unit
For D3, D4 and D5: home blind tastings in the exam's shape, marked field by field against style notes for classic categories, with calibration and conclusion drills
For D3: a coverage map of every region in the specification, showing which you have practised and which you have not

Each unit is a one-off purchase. Paper 1 and a selection of the cards are free in every unit, so you can judge the standard before you buy. No account, no subscription, no adverts.
Three ways into every question
The rehearsal. The Diploma is written by hand, so you write by hand too: the app is the question paper and the clock; it hands the paper in when time is up. Then you mark your script against the scheme.
Five minutes to jot the points an answer would make, then mark the plan against the scheme. A plan is not an answer, so it never counts towards your estimate.
The scheme, a model answer at distinction standard for every part and a weaker answer with commentary on what earned its marks and what cost them.
Marking
Before you mark, you confirm that you answered the command verb, covered the scope and used the question's context. Then you tick each point your answer makes with the link the question demands. Groups of points stop at their cap; do-not-credit lines never score. Each result comes with its band and the marks you needed for the next line. Every mark is indicative.
Tasting at home: D3, D4 and D5
A style note describes a classic example of the category, not one bottle or vintage, so your bottle can differ. The marks are indicative.
Taste and spit.
Every flight tells you what to buy: a category and a price level, from inexpensive to super-premium. Never a brand, a producer or a shop.
A friend pours the wines into numbered glasses out of sight.
You write your notes by hand, on the clock: 45 minutes a flight, 15 a wine.
Then you mark each wine field by field against a style note for its category: one level per field, as the exam expects, so a range scores nothing. Conclusions and identification are marked in bands.
Unit D3, the exam
Wines of the World is half of the Diploma. Theory on the first day, tasting on the second: you need at least 55% in theory and at least 55% in tasting.
Day one
3 hours 20 minutes
Two open-response papers, of 2 hours and of 1 hour 20 minutes.
Day two
3 hours
12 wines blind over two papers of 90 minutes, in four flights of three.
To enrol on the Diploma, WSET requires the Level 3 Award in Wines or the Level 3 Award in Wines and Spirits.
Private by design
No account and no sign-in. The app works offline and your progress stays on your phone: we never see it. Purchases go through the App Store or Google Play.
The apps



Support
On a new phone or after reinstalling, open Settings and tap Restore purchases, signed in with the Apple Account or Google account you bought them with.
Everything you do stays on your phone. There is no account and no copy with us, so deleting the app deletes your progress for good. Reset all progress, in Settings, clears it on purpose.
A paper runs on the real clock, as in the exam room: it keeps running if you leave the app and a paper whose time runs out is handed in, ready for you to mark.
The Diploma is written by hand, so Sit it is too: the app is the question paper and the clock; you mark your script against the scheme afterwards.
The tasting features are for adults of legal drinking age where you live. Taste and spit, keep water and a spittoon to hand and never drive after a tasting.
Write to us with the question's number, shown at the top of its page.
Contact
WSET is a registered trade mark of the Wine & Spirit Education Trust and appears here only to name the qualification. Every question, mark scheme, model answer, style note and card in the app is our own work. Published by RT Advisory Limited, trading as Worth Opening.
Independent study aid. Not affiliated with, endorsed by or approved by the Wine & Spirit Education Trust.
Apple, the Apple logo, iPhone and App Store are trademarks of Apple Inc., registered in the U.S. and other countries and regions. Google Play and the Google Play logo are trademarks of Google LLC.