Comparison

Day Counter vs EngineerTact

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Day Counter

Track important moments with customizable countdowns for goals, birthdays, and holidays. Visualize progress with home screen widgets and an intuitive interface. Never miss a special event again.

Highlights
  • Create countdowns for events
  • Track days remaining or passed
  • Home screen widgets
  • Clean and intuitive design
  • Motivation for goals and milestones
Features
Read full description

How many days until your next vacation? How long since you quit smoking? Day Counter keeps every important date in one simple, beautiful app — with home screen widgets so you never have to open the app to check. COUNT DOWN & COUNT UP • Count down to future events: birthdays, holidays, weddings, exams, retirement, pregnancy due dates, and more • Count up from past dates: track habits, sobriety, fitness streaks, anniversaries, or any milestone • Choose your display unit: years, months, weeks, days, hours, minutes, seconds — or show all units at once HOME SCREEN WIDGETS • Small widget: 1 event at a glance • Medium widget: 3 events • Large widget: 6 events • Turn widgets on or off per event from the edit screen • See your countdown without opening the app PERSONALIZE EVERY EVENT • Pick from a wide selection of colors and icons • Dark mode support • Clean, intuitive interface — no clutter, no learning curve ANNIVERSARY COUNTDOWN • Automatic anniversary tracking — see how many days until your next yearly milestone BACK UP & SYNC • Sign in with Apple or Google to save your dates in the cloud • Sync across iPhone and iPad • Export your records for backup ACCURATE DATE CALCULATIONS • Months and years change on the correct date — not days early like some other apps • Trusted by users worldwide for retirement, tax deadlines, garden planting schedules, and life events PRO — ONE PAYMENT, NO SUBSCRIPTION • Remove ads forever with a single purchase • No monthly fees, no auto-renewal, no surprises • Fair price compared to subscription-based countdown apps 33 LANGUAGES Fully localized in English, German, Turkish, French, Spanish, Japanese, Arabic, and 26 more languages. PERFECT FOR: • Vacation and holiday countdowns • Birthday and wedding reminders • Retirement day tracking • Pregnancy and baby milestones • School exams and graduation • Fitness goals and habit tracking • Tax deadlines and important appointments • Remembering loved ones and special anniversaries Privacy Policy: https://gokselpirnal.com/saydim_privacy_policy.html

About

EngineerTact

Features
Read full description

EngineerTact is an offline field toolkit for engineers, land surveyors, RF technicians, and field operators across all domains — land, sea, and air. KEY FEATURES: • WGS84 Geodetic Coordinate Conversion — Convert between Geodetic (Lat/Lon/Alt) and ECEF (X/Y/Z) using the Bowring iterative algorithm. Real-time ENU Local Tangent Plane target tracking with bearing and range. • RF & Radar Calculator — Compute Free Space Path Loss (FSPL), Radar Line of Sight (4/3-Earth model), first Fresnel Zone radius, and signal wavelength. All calculations run on-device. • Mission Brief Planner — Build complete field mission briefs with route distance (Haversine), bearing in degrees and NATO mils, estimated time of arrival, and RF link margin. Save and reload briefs on-device. • Aerospace & Maritime Converter — Convert speed (knots, km/h, m/s, Mach), altitude (ft, m, FL), pressure (hPa, inHg, psi), and ISA atmospheric parameters with full unit coverage. • Number Base & Data Converter — Convert between decimal, hexadecimal, binary, and octal. IEEE 754 float analysis. Bit-width calculator. • Formulas & Reference — Full mathematical reference for FSPL, WGS84 geodesy, Haversine, radar horizon, Fresnel zone, and NATO unit standards. All calculations are performed entirely on-device. No network connection, no account, no tracking, no ads. Designed and engineered by Fırat Bozkaya.

Screenshots

Day Counter4 screens
EngineerTact4 screens

Verdict

The call

The clearest difference is in-app purchases: EngineerTact at none against Day Counter's 1. EngineerTact also leads on ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price, device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Day Counter sells 1 one-off in-app purchase. EngineerTact asks for nothing beyond the download.

UpkeepUpdate frequency

Day Counter ships an update every 2 months, EngineerTact fortnightly. The most recent releases landed on September 1, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
Day Counter versus EngineerTact: the parameters behind the verdict, then further details
ParameterDay CounterEngineerTact
PriceFreeFree
Rating4.7 (105 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings105 — better—
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size61 MB27 MB
Age rating4+4+
DeveloperGoksel PirnalFırat BOZKAYA

In-app purchases

1 purchases

Day Counter

One-time1
  • PRO$3.99
None

EngineerTact

No in-app purchases

Questions

Is Day Counter free?
Day Counter is free to download, with in-app purchases available.
Is EngineerTact free?
EngineerTact is free to download, with no in-app purchases.
Do Day Counter or EngineerTact have ads?
Day Counter shows ads; EngineerTact does not.
Which is updated more often, Day Counter or EngineerTact?
Day Counter ships an update every 2 months, and EngineerTact fortnightly. Most recently, Day Counter was updated on September 1, 2026 and EngineerTact on September 21, 2026.

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