# UnitGrid: lb oz °F inch gal — Converter kg metric mpg kWh

> Professional, offline unit converter with 33 categories and no ads or subscriptions. (iPhone/iPad app by 骏 叶.)

- Source: https://appshunter.io/ios/app/unitgrid-lb-oz-f-inch-gal/id6748609933 (this page in markdown: same URL + `.md`)
- Developer: [骏 叶](https://appshunter.io/developer/1503015353)
- Category: Utilities, Lifestyle
- Price: $1.99 (on sale, was $2.99)
- Age rating: 4+
- Requires: iOS 17.6 · 3 MB
- Languages: Danish, Ukrainian, Russian, Croatian, Hungarian, Indonesian, Turkish, Bangla, Greek, German (Germany) and 18 more
- Released: 2025-07-16
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/unitgrid-lb-oz-f-inch-gal/id6748609933/reviews.md

## What is UnitGrid?

UnitGrid is a one-time-purchase, fully offline converter for students, electricians, renovation and travel. Type a number to see every unit in that category at once; tap a result to refill and keep converting. Reorder the sidebar; last category, unit and input are remembered. 33 categories:
Length: km to nm; mile, foot, inch, nautical mile; li, zhang, chi, cun
Mass: tonne, kg, g; lb, oz, carat, stone; dan, jin, liang, qian
Area: km², hectare, m²; acre; qing, mu
Volume: liter, mL, m³; US/UK gallon, quart, pint; dou, sheng
Temperature: °C, °F, K, °R
Speed: m/s, km/h, mph, knot, Mach
Data storage: KB/MB/GB (1000) vs KiB/MiB/GiB (1024)
Time: century and year to nanosecond
Pressure: Pa, bar, atm, mercury, water column, psi
Power: W, kW; mechanical/metric hp; BTU/h
Energy: J, kWh, kcal, cal, BTU, eV
Density: kg/m³, g/cm³, lb/ft³
Angle: degree, radian, arcmin, arcsec, mil
Force: N, kgf, lbf
Illuminance: lux, foot-candle
Resistance: mΩ to MΩ
Voltage: mV to MV
Current: µA to MA
Frequency: Hz to THz
Conductance: S, mS, µS
Capacitance: pF to F
Inductance: nH to H
Acceleration: m/s², ft/s², g
Torque: N·m, lbf·ft, lbf·in
Flow: m³/h, L/min, gal/min
Data rate: bit/s to Gbit/s, KB/s, MB/s
Fuel economy: L/100km; US/UK mpg
Charge: C, Ah, mAh
Angular velocity: rad/s, °/s, rpm, rps
Mass flow: kg/s, t/h, lb/s
Luminous flux: lm, klm, mlm
Luminous intensity: cd, kcd, mcd
Luminance: cd/m², foot-lambert
Buy once, updates free. No ads, no subscription, no tracking. Dark interface, 28 languages. Results are for reference only, not certified metrology. Chinese store name: 单位换算.

## Key features

- 33 conversion categories
- Offline functionality
- Ad-free experience
- One-time purchase
- Instant and accurate results
- Supports 28 languages

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/unitgrid-lb-oz-f-inch-gal/id6748609933/reviews.md

### 5/5 — 很好的软件

*2025-07-18*

简洁高效更新快期待更多的软件

**Developer response:** 感谢你的下载和使用，欢迎给我们提供宝贵建议。

## Frequently asked questions about UnitGrid

### What is the price of UnitGrid - Pro Converter?

UnitGrid - Pro Converter is available for a one-time purchase of $1.99. This price includes all features and future updates, with no additional subscriptions or in-app purchases.

### Does UnitGrid - Pro Converter have ads?

No, UnitGrid - Pro Converter is completely ad-free. The developer emphasizes a clean user experience without intrusive advertisements.

### Can I use UnitGrid - Pro Converter offline?

Yes, UnitGrid - Pro Converter works entirely offline. You can perform conversions on planes, subways, or anywhere without an internet connection.

### How often is UnitGrid - Pro Converter updated?

The app is continuously maintained with new units and improvements. The latest version, 1.3.3, was updated on June 24, 2026.

### What devices support UnitGrid - Pro Converter?

UnitGrid - Pro Converter is available for iPhone and iPad. It is designed for iOS devices.

### What age rating does UnitGrid - Pro Converter have?

UnitGrid - Pro Converter has an age rating of 4+. This indicates it is suitable for a wide range of users, including children.

### Does UnitGrid - Pro Converter track user data?

No, the app explicitly states that it does not track or collect any of your data. Your inputs and usage remain private.

### What kind of unit categories does UnitGrid - Pro Converter offer?

UnitGrid - Pro Converter offers 33 categories, including everyday units (length, mass, temperature), data and network units, engineering and physics units, electrical units, and optical units.

## Version history (last 5 releases)

### 1.3.4 — 2026-09-05

This update improves the interface and fixes several known issues. Browsing categories, entering values and chained conversions is smoother. Results are for reference only.

### 1.3.3 — 2026-06-24

What's New

This update significantly expands categories and units, with improved accuracy and language support:
【11 New Conversion Categories】
· Acceleration, Torque, Flow Rate, Mass Flow Rate
· Data Transfer Rate, Fuel Economy
· Charge (battery capacity, mAh / Ah)
· Angular Velocity, Luminous Flux, Luminous Intensity, Luminance
(Now 33 categories in total)
【Smarter Data Storage】
· Added binary units KiB / MiB / GiB / TiB / PiB (base-1024)
· Decimal units KB / MB / GB corrected to the standard base-1000
· Clears up the classic "advertised vs. actual drive capacity" confusion
【More Everyday Units】
· Mass: added Carat, Stone
· Time: added Month, Nanosecond
· Power: added Megawatt, Milliwatt, BTU/hour
【9 New Interface Languages】
· Danish, Dutch, Czech, Croatian, Romanian, Bengali, Swedish, Tamil, Greek
(Now supporting 28 languages)
【Accuracy & Experience】
· Fixed an issue where tapping a scientific-notation result could not be reused for further conversion
· Very large values now show a clear message instead of a blank result
· Unified certain unit symbols (micro µ) for consistency
· All conversions verified for numerical accuracy
Thanks for using the app! If you enjoy it, please leave a rating on the App Store. We welcome your feedback

### 1.3.2 — 2026-03-08

This update refines the UI design, enhances calculation accuracy, and adds support for more languages for a smoother, more precise experience.

### 1.3.1 — 2025-08-12

Fixed the issue where the last selected language and tool category were not remembered, and standardized the format of the entered numbers.

### 1.3 — 2025-07-28

1. Added multiple unit conversion tools
2. Improved calculation accuracy
3. Added support for German, French, Italian, and Spanish
4. Optimized iPad interface for a better large-screen experience
5. Fixed minor bugs, improved app performance and stability
6. Compatible with iOS 15.6

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All apps by 骏 叶: https://appshunter.io/developer/1503015353

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*