Comparison

Precision Metric vs Convert Everything

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

Head to head
About

Precision Metric

Read full description

Convert any unit with precision you can trust. Precision Metric is a fast, accurate unit converter with 234 units across 30 categories. Every calculation uses NIST-verified conversion factors with up to 50-digit internal precision. No ads. No tracking. Works completely offline. FEATURES: • 30 categories: Length, Mass, Temperature, Volume, Time, Area, Speed, Pressure, Energy, Force, Torque, Frequency, and more • Compound unit input — enter values as 5ft 3in or 2lb 8oz • Batch convert — convert dozens of values at once and share as CSV • Significant figures mode with dp/sf toggle • Conversion audit trail — see the exact factor, source, and math • Industry quick sheets for Cooking, Construction, Engineering, Science, and Medical • Real-time conversion as you type • Pair search — type "miles to km" and go straight to converting • Save favorite conversion pairs • Haptic feedback on key actions FREE TO USE: • 7 everyday categories with common units • Up to 4 decimal precision • 5 saved conversions, 10 history entries • All features except Pro units and extended precision UPGRADE TO PRO (one-time purchase): • All 30 categories and 234 units • Up to 15 decimal precision and sig figs • Unlimited saves and history • Batch conversion and CSV export • Conversion audit trail with NIST sources • Pay once, yours forever — no subscriptions BUILT FOR PROFESSIONALS: • NIST and SI verified conversion factors • Arbitrary-precision math — no floating-point errors • Compound units: feet+inches, pounds+ounces, hours+minutes+seconds • Temperature: Celsius, Fahrenheit, Kelvin, and Rankine • Every factor traceable to international reference standards Works offline. No data collected. No ads. No tracking. Your conversions stay on your device.

About

Convert Everything

Features
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Convert Everything — the fastest, cleanest unit and currency converter on the App Store. Type a number, pick your units, get the answer instantly. No clutter, no subscriptions, no limits. 14 CATEGORIES, 150+ UNITS CURRENCY 20 currencies with live exchange rates — USD, EUR, GBP, TRY, JPY, CHF, CNY and more. Rates update with a single tap. LENGTH Metric, imperial, and beyond — mm, cm, m, km, inch, foot, yard, mile, nautical mile, light year. WEIGHT mg, g, kg, tonne, oz, lb, stone, carat, troy ounce and more. TEMPERATURE Celsius, Fahrenheit, Kelvin. VOLUME mL, L, cubic meters, US cups, pints, quarts, gallons, Imperial gallon and more. AREA m², km², hectare, decare, acre, square foot, square mile and more. SPEED km/h, mph, m/s, knots, Mach, speed of light. DATA bit, byte, KB, MB, GB, TB, PB, EB, Kbit, Mbit, Gbit. TIME Millisecond to year — all major time units covered. ENERGY Joule, calorie, kcal, kWh, BTU, electronvolt and more. PRESSURE Pa, kPa, bar, PSI, atm, Torr, mmHg, inHg. POWER Watt, kW, MW, horsepower, BTU/h. ANGLE Degree, radian, gradian, arcminute, arcsecond. FREQUENCY Hz, kHz, MHz, GHz, RPM. SMART FEATURES Clipboard Detection Copy any number on your phone — when you open the app, it offers to convert it right away. No retyping. Favorites Long-press the heart icon to save your go-to unit pairs. They always appear at the top. History Every conversion is saved automatically. Swipe to delete the ones you don't need. Also Equals See your result expressed in multiple units at the same time — no extra taps needed. Global Search Can't find your unit? Type anything in the search bar and it appears instantly across all 14 categories. Precision Control Choose exactly how many decimal places to display. Dark & Light Mode Switch anytime with a single tap. 7 Languages English, Turkish, German, Spanish, French, Italian, Portuguese. SIMPLE BY DESIGN No account. No sign-up. No internet required (except for live currency rates). Open the app, convert, done.

Screenshots

Precision Metric4 screens
Convert Everything4 screens

Verdict

The call

The clearest difference is update cadence: Precision Metric at every 3 days against Convert Everything's fortnightly. Convert Everything's advantage is device support. On price, in-app purchases 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. Precision Metric sells 1 one-off in-app purchase and Convert Everything sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Precision Metric ships an update every 3 days, Convert Everything fortnightly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Precision Metric versus Convert Everything: the parameters behind the verdict, then further details
ParameterPrecision MetricConvert Everything
PriceFreeFree
Update frequencyEvery 3 days — betterFortnightly
Ads—Yes
In-app purchasesYesYes
Devices—iPhone, iPod — better
Requires iOS15.114.0 — better
Further details — not scored
Size45 MB25 MB
Age rating4+4+
DeveloperEastchester Group LtdYusuf Kenan EKIZOGLU

In-app purchases

1 purchases

Precision Metric

One-time1
  • Precision Metric Pro$4.99
1 purchases

Convert Everything

One-time1
  • Remove Ads$1.99

Questions

Is Precision Metric free?
Precision Metric is free to download, with in-app purchases available.
Is Convert Everything free?
Convert Everything is free to download, with in-app purchases available.
Which is updated more often, Precision Metric or Convert Everything?
Precision Metric ships an update every 3 days, and Convert Everything fortnightly. Most recently, Precision Metric was updated on October 25, 2026 and Convert Everything on October 31, 2026.

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