Comparison

Unit Converter All Categories vs TimeFlight

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

Head to head
About

Unit Converter All Categories

Features
Read full description

Universal Unit Converter is the ultimate all-in-one conversion tool for professionals, students, and everyday users. Whether you're solving homework problems, performing engineering calculations, or managing tasks in the lab or workshop, this app has everything you need in one beautifully organized interface. With over 70 converters spread across 8 specialized categories, this app helps you convert almost anything — from simple length and weight to advanced thermal resistance, magnetism, radiation, and more. Main Categories & Features Common Converters Quickly convert essential everyday values like: Length Weight and Mass Volume Temperature Area Pressure Energy Speed Data Storage Time, Power, Force, and more Engineering Tools Perfect for students and professionals in mechanical or civil engineering: Angular velocity & acceleration Density & specific volume Moment of inertia Torque & force moments Heat and Thermal Systems Handle all thermal analysis needs with: Thermal conductivity Specific heat capacity Thermal resistance Heat transfer coefficient Fuel efficiency (mass & volume) Fluid Dynamics Explore various physical and chemical properties in: Flow rates (volume, mass, molar) Viscosity (dynamic & kinematic) Concentration & permeability Surface tension Light and Optics Calculate optical parameters with: Luminance Illumination Light frequency & wavelength Digital image resolution Electricity Designed for electrical engineers and electronics enthusiasts: Current, voltage, resistance Capacitance & inductance Conductance, conductivity, and resistivity Electric field strength & charge density Magnetism Convert key magnetic quantities: Magnetic field strength Magnetic flux & flux density Magnetomotive force Radiology and Radiation Medical and scientific users can convert: Radiation exposure (Gy, Bq, C/kg) Absorbed dose & activity Why Choose Universal Unit Converter? Clean and intuitive UI with categorized converters Accurate conversion formulas used by professionals Offline mode — No internet needed Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

TimeFlight

This app helps pilots track flight exercises and duty periods, providing timely reminders to maintain currency and avoid losing pilot privileges. It offers detailed logging, synchronization across devices, and a commander mode for oversight.

Highlights
  • Flight exercise tracking
  • Automated duty period calculation
  • Customizable reminders
  • Flight log with aircraft details
  • Cross-device synchronization
  • Commander mode for oversight
Read full description

TimeFlight — трекер лётных упражнений и перерывов для пилотов. Следит за сроками и заранее предупреждает, что вы скоро «выпадете», чтобы вы успели слетать и не потерять допуск. Основное • Учёт упражнений с датой выполнения и автоматическим расчётом перерыва • Наглядные карточки: когда слетали, когда выпадаете, сколько дней осталось • Индикатор двойного перерыва — сразу видно, где требуется контрольный полёт • Цепочки продления: один полёт продлевает связанные упражнения • Подкатегории и вкладки для разных видов подготовки Напоминания • Предупреждение заранее и в день истечения, повторные и воскресная сводка • Отдельное предупреждение о приближении двойного перерыва • Несколько напоминаний в день, «тихие часы», бейдж и виджеты Журнал налёта (бета) • Учёт каждого полёта: тип ВС, время суток, цель, налёт, заходы и посадки • Полёт автоматически отмечает связанные упражнения выполненными • Сводка «для книжки» за месяц и год, форматы КБП и КЛПИ • Экспорт в PDF и CSV для печати и переноса в бумажную книжку Синхронизация и надёжность • Синхронизация между устройствами через iCloud • Автоматическое резервное копирование и восстановление одним тапом Режим командира • Командир видит лётные перерывы подчинённых через iCloud • Уведомления об изменениях: новые полёты и просроченные упражнения Данные принадлежат вам: хранятся на устройстве и в вашем iCloud.

Screenshots

Unit Converter All Categories4 screens
TimeFlight4 screens

Verdict

The call

The clearest difference is in-app purchases: TimeFlight at none against Unit Converter All Categories's 3. TimeFlight also leads on update cadence (every 5 days vs every 5 weeks). Unit Converter All Categories's advantage is iOS requirement (16.6 vs 18.0). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Unit Converter All Categories sells 3 in-app purchases, starting at $0.99 per month. TimeFlight asks for nothing beyond the download.

UpkeepUpdate frequency

Unit Converter All Categories ships an update every 5 weeks, TimeFlight every 5 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Unit Converter All Categories versus TimeFlight: the parameters behind the verdict, then further details
ParameterUnit Converter All CategoriesTimeFlight
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS16.6 — better18.0
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperVladislav ZhirnovYana Khalikova

In-app purchases

3 purchases

Unit Converter All Categories

Subscriptions2
  • Full version / monthly$0.991 Month
  • Full version / year$2.991 Year
One-time1
  • Remove ADS$4.99
None

TimeFlight

No in-app purchases

Questions

Is Unit Converter All Categories free?
Unit Converter All Categories is free to download, with in-app purchases available.
Is TimeFlight free?
TimeFlight is free to download, with no in-app purchases.
Do Unit Converter All Categories or TimeFlight have ads?
Neither Unit Converter All Categories nor TimeFlight shows ads.
Which is updated more often, Unit Converter All Categories or TimeFlight?
Unit Converter All Categories ships an update every 5 weeks, and TimeFlight every 5 days. Most recently, Unit Converter All Categories was updated on November 7, 2026 and TimeFlight on October 31, 2026.

Other comparisons