Tempus Calc vs Date Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tempus Calc
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FEATURES DURATION CALCULATOR • Calculate the exact time between any two dates • See results in years, months, and total days • Perfect for age calculations, anniversary tracking, and project timelines • Instant results as you select dates ADD/SUBTRACT DAYS • Find future dates by adding days • Calculate past dates by subtracting days • Support for negative values up to 100 years • Ideal for deadline planning and scheduling SAVED CALCULATIONS • Save frequently used calculations for quick access • Search and filter your saved items • Swipe to delete individual calculations • Clear all with confirmation protection • Perfect for recurring date calculations BEAUTIFUL DESIGN • Elegant, modern interface • Full Dark Mode support • Smooth animations and haptic feedback • Color-coded results for clarity • Optimized for all iPhone sizes PERFECT FOR • Project Managers - Track milestones and deadlines • Event Planners - Calculate dates for weddings, parties, conferences • Business Professionals - Plan delivery dates and schedules • Students - Track assignment due dates and semester planning • Travelers - Plan trips and calculate vacation lengths • Parents - Track child development milestones • Anyone who works with dates regularly WHY CHOOSE TEMPUS CALC? PRIVACY FIRST All calculations are stored locally on your device. No data collection, no tracking, no cloud sync required. Your dates are yours alone. LIGHTNING FAST Calculations happen instantly as you interact. No waiting, no loading screens. Just immediate results. OFFLINE CAPABLE Works perfectly without internet connection. Calculate dates anywhere, anytime. NO ADS Focus on your calculations without distractions. No advertisements, ever. HOW IT WORKS Duration Mode: 1. Select a start date 2. Select an end date 3. See instant results in multiple formats 4. Save for later if needed Add Days Mode: 1. Choose a starting date 2. Enter number of days (positive or negative) 3. See the resulting date immediately 4. Save your calculation for future reference
Date Calculator
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How many days between two dates? Get the exact answer in one tap — no counting squares on a calendar, no math in your head. Pick a start date and an end date, and DateDiff breaks the gap down into every unit at once: years, months, weeks, and days, plus total days, total weeks, total months, and total hours. It works the other way too — add or subtract days, weeks, months, or years from any date to land on the exact day you need. Every result is calculated on-device and stays accurate across leap years and century rules. WHAT YOU GET - The precise span between any two dates in years, months, weeks, and days, all shown together - Add or subtract time to find a future or past date instantly - Business-day counting that skips weekends and imported holidays - Country holiday packs plus your own custom days off, so workday counts match your calendar - Saved date pairs with upcoming milestones and live countdowns to the days that matter - A plain-text export of your saved calculations to share or keep PERFECT FOR - Planners counting down to a trip, wedding, or big event - Anyone working out an exact age from a birth date - Project managers tracking deadlines in real working days - Curious minds settling "how long ago" and "how far away" questions WHY NOT JUST COUNT ON A CALENDAR Flipping through months and tallying days is slow and easy to get wrong — one skipped weekend or forgotten leap day throws the whole number off. DateDiff does the counting for you and stays exact every time, including the weekend and holiday skips that hand-counting always misses. PRIVACY Everything stays on your device. No account, no ads, no tracking — the app works fully offline. FULL ACCESS DateDiff Pro unlocks workday and business-day counting, country and custom holiday packs, saved date pairs, upcoming milestones, and export. It is available as a weekly or yearly subscription, or a one-time lifetime purchase. The date difference and add/subtract calculators are free to use. Stop counting on your fingers — get the exact answer in one tap. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? https://web-levi.web.app/#contact
Screenshots
Verdict
The clearest difference is update cadence: Tempus Calc at every 8 days against Date Calculator's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Tempus Calc ships an update every 8 days, Date Calculator every 3 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Tempus Calc | Date Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | ommar alquisi | Phuc Pham |
In-app purchases
Tempus Calc
No in-app purchases
Date Calculator
No in-app purchases
Questions
Is Tempus Calc free?
Is Date Calculator free?
Do Tempus Calc or Date Calculator have ads?
Which is updated more often, Tempus Calc or Date Calculator?
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