# DayProof: Business Days — Workday & Deadline Calculator

> Workday & Deadline Calculator (iPhone/iPad app by BE A MAN PTY LTD.)

- Source: https://appshunter.io/ios/app/dayproof-business-days/id6801852614 (this page in markdown: same URL + `.md`)
- Developer: [BE A MAN PTY LTD](https://appshunter.io/developer/910439396)
- Category: Business, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 19 MB
- Released: 2026-08-28
- Data updated: 2026-09-15
- User reviews in markdown: https://appshunter.io/ios/app/dayproof-business-days/id6801852614/reviews.md

## What is DayProof?

What date is 10 business days from now? How many days are between two dates?

DayProof adds and subtracts dates, excludes weekends and selected holidays, and shows how each result was calculated. Basic date calculations are unlimited and free. They work offline, with no ads and no account.

Try advanced workflows with included free uses. A one-time DayProof Pro purchase removes their usage limits. No subscription.

ANSWER REAL WORK QUESTIONS
• What date is 10 business days from now?
• How many working days are between two dates?
• What is the latest start date for a deadline?
• Which weekends and holidays were skipped?

CALCULATE DATES YOUR WAY
• Add or subtract calendar days, business days, weeks, and true calendar months or years
• Count calendar days or working days between two dates
• Calculate backward from a target date to find the latest start
• Choose whether the start and end dates are included
• Use your device time zone by default, or select another time zone

USE THE RIGHT WORKING CALENDAR
• Customize which weekdays count as workdays
• Use US Federal, Canada Federal, England & Wales bank holiday, and Australia National calendars
• Add company holidays, shutdowns, leave days, and one-off closures
• Add regional holidays as custom dates when they are outside the bundled calendar
• Control what happens when a result falls on a non-working day

SEE HOW EVERY RESULT WAS CALCULATED
DayProof shows the rule profile, included boundaries, and every weekend or holiday skipped. You get a result you can review instead of a number you simply have to trust.

PLAN MULTI-STEP DEADLINES
Create projects such as Notice → Response → Delivery. Each milestone can use calendar days, business days, weeks, or calendar months. Change the starting date and the full timeline recalculates.

SAVE, SHARE, AND REUSE
• Save calculations, rule profiles, projects, and templates
• Export clear PDF calculation reports
• Add milestones to Apple Calendar
• Run supported calculations with Shortcuts

PRIVATE BY DESIGN
Core calculations run on your device and work offline. No account is required, and DayProof contains no advertising.

FREE CALCULATIONS, OPTIONAL PRO
Basic date calculations remain free with no usage limit. Advanced features include 3 custom rule-profile creations, 3 project creations, 1 saved template, 3 PDF exports, 3 Calendar syncs, and 3 actions to add favorites. These are included usage allowances, not daily limits. Existing projects and rules remain editable after the included creations are used.

A one-time DayProof Pro purchase removes these advanced-feature usage limits. There is no subscription.

DayProof is a calculation tool. Results depend on the rules and calendars you select. Verify important dates against applicable documents and professional advice.

Terms of Use (Apple Standard EULA):
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| DayProof Pro Lifetime | $7.99 | one-time |



## Version history (last 2 releases)

### 1.0.1 — 2026-09-12

• Clearer labels for included advanced-feature uses. Basic date calculations remain unlimited and free.
• Updated screenshots and a new website with support and privacy information.

### 1.0 — 2026-08-28

No release notes.

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All apps by BE A MAN PTY LTD: https://appshunter.io/developer/910439396

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-15.*