Dechecker vs Sybill
Official pricing (checked 2026-10-18, 2026-10-29) computed at the same usage levels. 1 USD = 1,340.24 KRW.
- At 3 People using it (3 people)
Dechecker- No plan
- Sybill
- No plan
- One side has a plan that cannot be converted to usage, so no winner is called per band. Compare the monthly prices in the table below.
Monthly cost by usage
Which side is cheaper at light, typical and heavy use. Each cell is the cheapest plan that covers that amount.
| People using it | Dechecker | Sybill | Cheaper |
|---|---|---|---|
| Just me (1) | No plan | No plan | - |
| 3 people (3) | No plan | No plan | - |
| 10 people (10) | No plan | No plan | - |
For your exact usage, use the AI marketing calculator.
At a glance
- Entry prices: Dechecker Basic at $5/mo (about ₩6,700), Sybill Pro at $36/mo (about ₩48,200).
- At just me usage (1 seats) neither has a public plan that covers it, or the unit cannot be converted.
- At 3 people usage (3 seats) neither has a public plan that covers it, or the unit cannot be converted.
- At 10 people usage (10 seats) neither has a public plan that covers it, or the unit cannot be converted.
- Both have free plans (Dechecker Free, Sybill Free).
Dechecker pricing
Dechecker is a tool that improves writing quality with AI detection and text humanizer. Tool page
| Plan | Monthly | Annual billing | KRW | Included / month | Notes |
|---|---|---|---|---|---|
| Free | $0 | - | ₩0 | 80 credits | 80 credits/month, +20 bonus first month, monthly reset (no rollover), AI checker 8,000 words/month · Basic humanizer 4,000 words/month |
| BasicCheapest paid | $5 | - | ₩6,700 | 400 credits | 400 credits/month, current discount $3/month (-40%), checker 40,000 words/month · 3,000 words per use, humanizer 20,000 words/month · 1,500 words per use, batch 10 files, no rollover |
| Pro | $19 | - | ₩25,500 | 1,500 credits | 1,500 credits/month, current discount $9/month (-53%), checker 150,000 words/month · 20,000 words per use, humanizer 75,000 words/month · 10,000 words per use, batch 30 files, no rollover |
| Premium | $49 | - | ₩65,700 | Unlimited | Unlimited credits, current discount $29/month (-41%), batch 40 files |
Free
$0
80 credits
80 credits/month, +20 bonus first month, monthly reset (no rollover), AI checker 8,000 words/month · Basic humanizer 4,000 words/month
BasicCheapest paid
$5/mo
- In KRW
- ₩6,700
- Included / month
- 400 credits
400 credits/month, current discount $3/month (-40%), checker 40,000 words/month · 3,000 words per use, humanizer 20,000 words/month · 1,500 words per use, batch 10 files, no rollover
Pro
$19/mo
- In KRW
- ₩25,500
- Included / month
- 1,500 credits
1,500 credits/month, current discount $9/month (-53%), checker 150,000 words/month · 20,000 words per use, humanizer 75,000 words/month · 10,000 words per use, batch 30 files, no rollover
Premium
$49/mo
- In KRW
- ₩65,700
- Included / month
- Unlimited
Unlimited credits, current discount $29/month (-41%), batch 40 files
1 USD = 1,340.24 KRW (2026-10-30). Checked on the official pricing page on 2026-10-18. Bold values are monthly-billing prices; taxes and payment fees excluded.
Sybill pricing
Sybill is an AI tool that captures sales team meetings, calls, and emails to remember deal context, and generates meeting summaries and follow-up email drafts. Tool page
| Plan | Monthly | Annual billing | KRW | Included / month | Notes |
|---|---|---|---|---|---|
| Free | $0 | - | ₩0 | 500 credits | 500 credits per week, up to 20 meeting summaries/briefs per month |
| ProCheapest paid | $36 | $30 | ₩48,200 | - | Per user, 2,500 credits per week; $30/month billed annually / $36/month billed monthly |
| Business | $108 | $90 | ₩144,700 | - | Per user, 5,000 credits per week; $90/month billed annually / $108/month billed monthly |
Free
$0
500 credits
500 credits per week, up to 20 meeting summaries/briefs per month
ProCheapest paid
$36/mo
- In KRW
- ₩48,200
- Annual billing
- $30
- Included / month
- -
Per user, 2,500 credits per week; $30/month billed annually / $36/month billed monthly
Business
$108/mo
- In KRW
- ₩144,700
- Annual billing
- $90
- Included / month
- -
Per user, 5,000 credits per week; $90/month billed annually / $108/month billed monthly
1 USD = 1,340.24 KRW (2026-10-30). Checked on the official pricing page on 2026-10-29. Bold values are monthly-billing prices; taxes and payment fees excluded.
FAQ
- Dechecker or Sybill: which is cheaper?
- At just me usage (1 seats) neither has a public plan that covers it, or the unit cannot be converted. At 3 people usage (3 seats) neither has a public plan that covers it, or the unit cannot be converted. At 10 people usage (10 seats) neither has a public plan that covers it, or the unit cannot be converted.
- Do Dechecker and Sybill have free plans?
- Both have free plans (Dechecker Free, Sybill Free).
- What are the entry prices of Dechecker and Sybill?
- Entry prices: Dechecker Basic at $5/mo (about ₩6,700), Sybill Pro at $36/mo (about ₩48,200).
How this is calculatedExchange rate, how a plan is chosen, what is excluded, and the disclaimer
How this is calculated
- 1KRW is converted at 1 USD = 1,340.24 KRW as at 2026-10-30. The rate is refreshed daily.
- 2Monthly cost is the monthly-billing price of the cheapest plan that covers the usage entered. Overage is added only where the official page states an overage rate; a plan whose allowance is exceeded with no stated overage is left out of the ranking.
- 3Credit-based tools are converted using the credits-per-unit figure printed on the official page. Tools whose credit cost varies by model, with no official conversion published, are excluded from the ranking and listed separately.
- 4The per-unit price is the plan's monthly price divided by its monthly allowance. Unlimited plans show none, as there is nothing to divide by.
- 5A 원고지 sheet is 200 characters; an A4 page is taken as 1,800 characters at 10pt with 160% line spacing.
- 6Prices are as published by the vendor. VAT, card issuers' foreign-transaction fees and the rate applied on a KRW settlement are excluded. Regional pricing and temporary promotions may not be reflected.
- 7Paying in dollars by card means your issuer adds its own exchange rate and a foreign-transaction fee, typically 1-2% of the amount. That figure depends on the issuer and the moment of payment, so Wolmma cannot know it and does not include it.
Disclaimer
Wolmma is an information site that collects prices from each tool's official pricing page. We may hold an affiliate relationship with a vendor, but we are neither the seller nor its agent.
We verify as carefully as we can, but a displayed price, allowance or conversion may differ from what you are actually charged, because of plan changes, regional policy, promotions or tax. Confirm the final amount on the official page before you pay.
These figures are reference information, not a recommendation or advice to buy. Wolmma accepts no liability for loss arising from a purchase or contract entered into on the basis of this information.
What your card is actually billed will differ from the figure shown, according to your issuer's exchange rate, its foreign-transaction fee and local tax. None of that is within our sight or control, and we accept no liability for it. Payment, refunds and plan changes are a contract between you and the vendor, to which the Company is not a party.
If a price is wrong, write to connect@aiyogeum.com. We check it, correct it, and record the correction in the change log.