# LumiCalc — Calculator & Custom Keyboard

> Calculator & Custom Keyboard (iPhone/iPad app by 阳 赵.)

- Source: https://appshunter.io/ios/app/lumicalc/id6759085439 (this page in markdown: same URL + `.md`)
- Developer: [阳 赵](https://appshunter.io/developer/1863829449)
- Category: Utilities, Entertainment
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 3 MB
- Languages: American English
- Released: 2026-03-17
- Data updated: 2026-07-28
- User reviews in markdown: https://appshunter.io/ios/app/lumicalc/id6759085439/reviews.md

## What is LumiCalc?

LumiCalc combines a calculator with your keyboard: bring it up in any app to calculate, convert units, and type—with themes and colors you choose.
Look good, work well
Preset themes (Caramel Dune, Aurora Night, Violet Night, and more)—switch in one tap
Custom keycap colors and backlight, including mosaic-style gradients
Adjustable keycap and highlight corners for your own style
Calculate & convert
Basic math: addition, subtraction, multiplication, division—free to use
Scientific (SCI): trig, log, square root, and more—requires subscription after trial
Unit conversion (UNIT): length, weight, temperature, area, and more—requires subscription after trial
English and Chinese UI and unit labels supported
Subscription
3-day free trial. During the trial you can use scientific and unit conversion; after the trial, SCI and UNIT require a subscription.
Themes, custom colors, saving designs, and other premium features also require a subscription.
Built for anyone who wants a keyboard that’s both useful and looks the way you like.
EULA:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Unlock Premium — Monthly | $2.99 | per month |



## Version history (last 1 release)

### 1.0 — 2026-03-18

No release notes.

## More apps by 阳 赵

- [SensoryStone](https://appshunter.io/ios/app/sensorystone/id6756968561)
- [EDC lab](https://appshunter.io/ios/app/edc-lab/id6757625784)
- [MomentKey](https://appshunter.io/ios/app/momentkey/id6757666407)
- [TidyStep](https://appshunter.io/ios/app/tidystep/id6759855011)
- [AntiRepeat](https://appshunter.io/ios/app/antirepeat/id6760582342)

All apps by 阳 赵: https://appshunter.io/developer/1863829449

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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 2026-07-28.*