| What it does | Free attendance calculator for students to track how many classes they can safely miss
| Free source-checked paycheck and tax calculators with every rate linked to official sources
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| IN
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| Pricing model | Free
| Free
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| Pricing | Not given
| The calculators are free to use and do not require an account.
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| Key features | - Calculate how many remaining classes can be missed while staying at target
- Determine how many consecutive sessions must be attended to recover if below threshold
- Track attendance for multiple subjects separately
- Browser-based with no sign-up or account required
- All calculations performed locally without sending data to servers
| - Paycheck and income tax calculators for US and 12 other countries
- Every rate linked to official tax agencies
- Calculations tested against official worked examples
- Source documentation with retrieval dates for every figure
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| What makes it different | - No account or sign-up needed – instant access with no data collection
- All calculations happen in your browser – attendance data never leaves your device
- Supports multiple institutional requirements with 75%, 80%, 85%, and 90% target options
- Tracks multiple subjects simultaneously to prevent any single module from sliding below threshold
- Built and maintained by a single developer focused on honest, accurate answers
| - Every rate is sourced from official tax agencies with links to original documents
- All figures are dated and checked for accuracy against official methods
- Transparent about gaps where data is not yet verified
- Covers 15 countries with a unified approach to transparency
- Plain English explanations alongside all calculators
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 1 | 0 |
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| Citation Flow (Majestic) | 19 | 0 |
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| Referring domains (Majestic) | 3 | 0 |
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CalcAttendance
CalcBloc