Comparison

Plain Units vs unit.

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

Head to head
About

Plain Units

Features
Read full description

Simple Unit Converter is a calm, numeric-first converter that gets out of your way. Pick a category, type into any field, and every other unit on the page updates instantly. No account, no sign-in, no clutter. 14 CATEGORIES • Length • Mass • Temperature • Time • Speed • Area • Volume • Digital Storage • Data Transfer Rate • Energy • Frequency • Fuel Economy • Plane Angle • Pressure WHY YOU'LL LIKE IT • Type into any unit, not just a "from" box. Every other unit converts as you type. • All units in a category are visible at once, so you never dig through pickers. • Searchable category grid to jump straight to what you need. • Tap a result to copy a clean, paste-ready value. • Remembers your last category, unit, and value between launches. • Light and dark mode, and works on iPhone and iPad. • Everything runs on your device. No servers, no analytics, no tracking of your conversions. REMOVE ADS The free version shows ads. A one-time purchase removes them forever and restores on all your devices signed in to the same Apple Account.

About

unit.

Read full description

Quick conversions. Your favorite units. Running pace in one place. unit. helps you convert everyday units, currency, height, fuel economy, tire pressure, and running pace with a simple keypad and clear results. Free forever: length, mass and weight, and temperature conversions. Enter feet and inches or pounds and ounces together. Convert without limits, use these features offline, copy results, and keep one replaceable favorite. Choose “Try everything free for 7 days” to explore all existing features, including the other conversion categories, currency, Running, and additional saved favorites. The trial starts only when you choose it and lasts seven consecutive days. It does not renew or charge you automatically. After it ends, the free features remain available and saved data is kept. Full Unlock is a separate one-time purchase, US $4.99; your local price is shown before purchase. It unlocks all existing features permanently. No subscription. Restore Purchases is available. Existing customers keep their eligible full access after updating, including verified previous paid-app downloads, prior Full Unlock purchases, and customers covered by the previous unrestricted-access promise. You do not need to buy again. Everyday conversions and running calculations work offline when accessible. Currency conversion uses saved daily reference rates after the first successful update; these are not transaction quotes and your bank may use a different rate or add fees. No Unit account is required. Made by App Labs LLC. Support: info@applabs.club

Screenshots

Plain Units4 screens
unit.4 screens

Verdict

The call

The clearest difference is ads: unit. at none against Plain Units's shown. unit. also leads on update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, 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. Plain Units sells 1 one-off in-app purchase and unit. sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Plain Units ships an update every 3 weeks, unit. every 3 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 6 level
Plain Units versus unit.: the parameters behind the verdict, then further details
ParameterPlain Unitsunit.
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size48 MB6 MB
Age rating4+4+
DeveloperNicolaus LawsonAPP LABS LLC

In-app purchases

1 purchases

Plain Units

One-time1
  • Remove Ads$3.99
4 purchases

unit.

One-time4
  • 7-day TrialFree
  • 14-day TrialFree
  • Full Unlock$4.99
Show 1 more
  • Full Unlock$6.99

Questions

Is Plain Units free?
Plain Units is free to download, with in-app purchases available.
Is unit. free?
unit. is free to download, with in-app purchases available.
Do Plain Units or unit. have ads?
Plain Units shows ads; unit. does not.
Which is updated more often, Plain Units or unit.?
Plain Units ships an update every 3 weeks, and unit. every 3 days. Most recently, Plain Units was updated on October 31, 2026 and unit. on October 31, 2026.

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