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Lumi Studio

https://apps.apple.com/us/developer/guan-feng-lai/id1136144960

Joined on Jun 27, 2026

Aug 31

Lumi Math Planet: Explorer — Some apps teach math. This one makes a child love it.

#ios #app #education #indiedev

1 min read

Aug 29

Drill TOEIC Part 5 and Part 7 offline — without another subscription

#ios #productivity #learning #languages

1 min read

Aug 27

Lumi Math Pro: Kids Numbers — Turn competition-level math thinking into a space adventure kids can't put down

#ios #app #education #indiedev

1 min read

Aug 26

On-device speech-to-text on iPhone — private, offline, no subscription

#ios #privacy #productivity #machinelearning

1 min read

Aug 26

Lumi Bopomofo Pro: Zhuyin — Help your child fall in love with Chinese phonics through one adorable space adventure.

#ios #app #education #indiedev

1 min read

Aug 25

Lumi Bopomofo — Lumi Bopomofo is a gentle, playful way for young children to learn the Bopomofo (Zhuyin) phonetic system.

#ios #app #education #indiedev

1 min read

Aug 24

G+Money: Spending & Budget — Convert + log every expense in one tap — offline

#ios #app #finance #indiedev

1 min read

Aug 23

HoursTag: Hours to Buy — What does it really cost? Not in dollars — in hours of your life.

#ios #app #finance #indiedev

1 min read

Aug 23

Reclaim focus for deep work: block distracting apps on iOS

#productivity #ios #tutorial #career

1 min read

Aug 19

White noise & sleep sounds that actually work offline (no subscription)

#ios #productivity #privacy

1 min read

Aug 14

Sharpen a blurry photo on iPhone without uploading it anywhere

#ios #privacy #tutorial

1 min read

Aug 10

A period tracker that stays on your device (no account, no data selling)

#privacy #ios #productivity

1 min read

Aug 4

Better AI answers start with traceable context, not a bigger prompt

#ai #productivity #privacy #ios

2 min read

Aug 1

Free up iPhone storage: find duplicate photos and huge videos

#ios #productivity #tutorial

1 min read

Jul 29

Get your résumé past the ATS filter (a quick checklist)

#career #productivity #ios #tutorial

1 min read

Jul 24

Track spending in hours of your life, not dollars

#productivity #ios #career #indie

1 min read

Jul 19

Scan documents to searchable PDFs offline — one-time purchase, no cloud

#ios #productivity #privacy #tutorial

1 min read

Jul 13

Free printable Zhuyin (Bopomofo) practice sheets for teaching kids Chinese

#showdev #ios #productivity #indie

1 min read

Jul 8

Make a passport or ID photo at home on your iPhone (no photo booth)

#ios #productivity #tutorial #privacy

1 min read

Jul 8

I built a family of pay-once iOS apps — no subscriptions, no ads, on-device

#showdev #ios #privacy #developers

2 min read

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