Days calc vs ExSciCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Days calc
Calculate the difference between two dates or add days to a specific date. This tool helps you determine future dates, remaining days until an event, or days passed since a past date. It conveniently saves your last calculation for quick access.
- Add days to a date
- Calculate difference between dates
- Count days, weeks, or years-months-days
- Find remaining days until a date
- Track days passed since a date
- Saves last calculated date
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This app operates using dates and days: - adds the number of days to specified date and finds the new date - finds the difference between two dates in number of days, weeks or years-months-days Choose the date, enter the number of days, and get the result! It also saves the last calculated date and updates it when launching. You will know: - which date it will be after a specific period of days - how many days remain until specific date - how many days have passed since specific date No in-app ads, no subscription necessary!
ExSciCalc
This calculator offers enhanced precision and memory beyond standard devices. It includes advanced functions for statistics, physics, and mathematics, alongside common calculations and unit conversions.
- Extended precision (30+ digits)
- Extended memory (main + 10 auxiliary)
- Scroll windows for button access
- Statistical calculations
- Physical and mathematical constants
- Unit conversions
- Roots of equations
- Special relativity calculations
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"Extended" scientific calculator has more features than typical calculators, including: • Extended precision (30+ digits), twice that of typical calculators. • Extended memory including a main memory with statistical information, and 10 auxiliary memory values. • Extended space for buttons using scroll windows--no confusing modes and function keys. • Extended functions not found on most calculators including (but not limited to): ◇ Statistical information for calculating standard deviation (tied to the M+ key) ◇ Most common physical constants and mathematical constants ◇ Extensive unit conversion constants ◇ Roots of polynomials and some transcendental equations ◇ Special relativity calculations • And normal functions including: ◇ Normal and hyperbolic trigonometry ◇ Various logs, powers and roots ◇ % calculations including interest and amortization ◇ Temperature conversion ◇ Random numbers ◇ Averages and means
Screenshots
Verdict
The clearest difference is rating: ExSciCalc at 5.0 against Days calc's 4.8. ExSciCalc also leads on update cadence (every 3 weeks vs every 2 months) and review sentiment (100% vs 88%). Days calc's advantage is ratings volume (4 vs 1) and price ($0.99 vs $1.99). On ads, in-app purchases, monetization model 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
Days calc costs $0.99 and ExSciCalc $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ExSciCalc holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 88% of Days calc's written reviews are positive against 100% of ExSciCalc's.
Days calc ships an update every 2 months, ExSciCalc every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Days calc | ExSciCalc |
|---|---|---|
| Price | $0.99 — better | $1.99 |
| Rating | 4.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 87.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 14.0 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Evgeny Turchaninov | Dale C Koepp |
Customer experience
Days calc
ExSciCalc
In-app purchases
Days calc
No in-app purchases
ExSciCalc
No in-app purchases
Questions
Is Days calc free?
Is ExSciCalc free?
Which has better reviews, Days calc or ExSciCalc?
Do Days calc or ExSciCalc have ads?
Which is updated more often, Days calc or ExSciCalc?
Other comparisons
