“Paid once, owned forever. After two years of subscription apps, it felt good to actually own the tool.”
HL
HSK 4 learner
Japan · HSK4 · 232
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Buy more, save more — Shells never expire
Every Shell you buy stays in your account — no monthly bill, no expiry, no hidden charges.
Everything you need to start practicing — without paying a cent.
$4.99
You receive
50 贝
Equivalent to:
10 HSK written mocks
50 speaking checks
5 paid exams unlocked
$7.99
You receive
110 贝
+10 bonus
Equivalent to:
22 HSK written mocks
110 speaking checks
11 paid exams unlocked
$19.99
You receive
350 贝
+50 bonus
How Shells compare to subscription apps for HSK preparation.
| Feature | HSK Ace from $4.99 · one-time | Subscription apps ~$14.99 / month | Free apps limited features |
|---|---|---|---|
| Full HSK 1–6 mock exams | |||
| AI speaking & pronunciation feedback |
Premium features consume Shells. Free tests are always free — no Shells needed.
Equivalent to:
70 HSK written mocks
350 speaking checks
35 paid exams unlocked
$29.99
You receive
500 贝
+100 bonus
Equivalent to:
100 HSK written mocks
500 speaking checks
50 paid exams unlocked
VAT/GST may apply at checkout based on your country.
| Handwriting practice with stroke order |
| HSK dictionary with audio |
| Never expires |
| Own forever (no recurring charge) |
| Ad-free |
7-day money-back guarantee
Unused Shells refundable within 7 days. Contact support with your order ID.
Real feedback from HSK Ace users worldwide.
“Paid once, owned forever. After two years of subscription apps, it felt good to actually own the tool.”
HSK 4 learner
Japan · HSK4 · 232
“Switched from a monthly app and never looked back. Buying Shells once felt like reclaiming my own pace.”
HSK 4 learner
Spain · HSK4 · 238
“Mock exams match the real format down to the timing. I knew exactly what to expect on test day.”
HSK 5 learner
Netherlands · HSK5 · 252