Image 1 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
Image 2 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
Image 3 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
Image 4 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
Image 5 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
Image 6 — [App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)
▲ 5 r/HowToMen+1 crossposts

[App] [Promo] Bunku — offline, ad-free, ₹50-once attendance & bunk calculator (update: added backup/restore + timetable since launch)

Link :https://play.google.com/store/apps/details?id=com.jdevsappstudio.bunku
I'm a solo Android dev. This started as a personal itch: I wanted to know exactly how many lectures I could skip before my attendance dropped below the 75% my college enforces. Every existing app either made me type in semester totals, buried me in banner ads, or wanted a login for a thing that runs perfectly fine offline.

So I built Bunku. The whole idea is one number: how many classes can I safely bunk in this subject right now, and if I've already fallen behind, how many do I need to attend to climb back above my target. You add subjects, set a minimum % per subject (75, 80, whatever your college wants), and tap Present or Absent after each class. It does the maths — live percentage, safe-to-bunk count, colour-coded Safe / Warning / At Risk.

A few decisions I made on purpose:

  • No ads, ever — free tier or paid. This was the whole reason I started, so putting ads in would've been hypocritical.
  • Fully offline, no account. Your logs never leave the phone. No cloud, no sign-up.
  • Pay once, not a subscription. Pro is a one-time ₹50 unlock (unlimited subjects, backup/restore to a file, CSV export, timetable, reminders). I hate renting software, so I won't make students rent this.
  • Free tier is genuinely usable — 3 subjects, no time limit, not a trial that expires.

Slightly weird feature I'm oddly proud of: there are small pass-and-play games built in (2048, Tic-Tac-Toe, Air Hockey) for the gap between lectures. It fits the "college downtime" vibe and it was fun to build.

Tech stack: native Android (Kotlin), local storage only, no backend at all — which is why there's nothing to log into and no server bill to pay.

What I'd love feedback on:

  • Is "how many can I bunk" clear enough as the core value, or does the games thing muddy it?
  • The biggest competitor auto-imports attendance by reading a screenshot of your college portal (OCR). I'm debating whether that's worth building vs. keeping it dead simple. Curious what makers here would prioritise.
u/jayshah1402 — 1 day ago
▲ 7 r/RoastMyApp+3 crossposts

I built an offline, ad-free attendance tracker with games because every other one is stuffed with ads' — honest build story, tech stack note, link in comments

I'm a solo Android dev. This started as a personal itch: I wanted to know exactly how many lectures I could skip before my attendance dropped below the 75% my college enforces. Every existing app either made me type in semester totals, buried me in banner ads, or wanted a login for a thing that runs perfectly fine offline.

So I built Bunku. The whole idea is one number: how many classes can I safely bunk in this subject right now, and if I've already fallen behind, how many do I need to attend to climb back above my target. You add subjects, set a minimum % per subject (75, 80, whatever your college wants), and tap Present or Absent after each class. It does the maths — live percentage, safe-to-bunk count, colour-coded Safe / Warning / At Risk.

A few decisions I made on purpose:

  • No ads, ever — free tier or paid. This was the whole reason I started, so putting ads in would've been hypocritical.
  • Fully offline, no account. Your logs never leave the phone. No cloud, no sign-up.
  • Pay once, not a subscription. Pro is a one-time unlock (unlimited subjects, backup/restore to a file, CSV export, timetable, reminders). I hate renting software, so I won't make students rent this.
  • Free tier is genuinely usable — 3 subjects, no time limit, not a trial that expires.

Slightly weird feature I'm oddly proud of: there are small pass-and-play games built in (2048, Tic-Tac-Toe, Air Hockey) for the gap between lectures. It fits the "college downtime" vibe and it was fun to build.

Tech stack: native Android (Kotlin), local storage only, no backend at all — which is why there's nothing to log into and no server bill to pay.

What I'd love feedback on:

  • Is "how many can I bunk" clear enough as the core value, or does the games thing muddy it?
  • The biggest competitor auto-imports attendance by reading a screenshot of your college portal (OCR). I'm debating whether that's worth building vs. keeping it dead simple. Curious what makers here would priorities.

Link : https://play.google.com/store/apps/details?id=com.jdevsappstudio.bunku
— happy to answer anything about the build.

u/jayshah1402 — 14 hours ago