Comparison

Quick Todo vs Ledger OS

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

Head to head
About

Quick Todo

Features
Read full description

Easily Manage Your To-Dos! Despite the abundance of todo apps, we couldn't find one that was simple to use yet ensured you wouldn't forget your tasks. So, we created QuickTodo. # Do you often forget your tasks? To keep you on track, we offer a lock screen widget to remind you of today's tasks. # Is it inconvenient to open the app just to mark a task as done? With our home screen widget, you can check off the task directly. # Key Features: - Lock Screen Widget: View today's tasks directly from your lock screen, so you never miss a thing. - Home Screen Widget: Easily check off tasks from your home screen for convenience. - Simple Task Management: Add, edit, and organize tasks with just a few taps. Swipe left to postpone tasks or change dates effortlessly. - Secure Data: All your data is stored securely on your device only, ensuring your privacy. * Supports iPhone only. Not available for iPad or Apple Watch. Please reach out to anskrr7@gmail.com with any issues or suggestions.

About

Ledger OS

This app provides an offline-first daily operating system focused on behavioral clarity. It scores your day across five weighted pillars, allowing you to capture notes, complete check-ins, and review patterns over time. It's designed for users seeking a structured personal operating system beyond generic habit tracking.

Highlights
  • Five-pillar weighted daily scoring
  • Running notes attached to the day
  • Report Card review with answer correction
  • Summary and Trends for pattern review
  • Streaks, contracts, and achievement tracking
  • Local on-device storage with backup
  • Optional AI summary tools
Features
Read full description

Ledger OS is a daily self-audit. Pick five parts of your life you want to stay honest about, answer three quick questions on each, and close the day with a clear grade - in about a minute. HOW IT WORKS 1. Pick five. Choose five audit targets from 40 across Money, Body, Mind, Relationships and Purpose: Spending, Sleep, Focus, Fitness, Gratitude, Doomscrolling, Stress, Savings and more. Or start with a ready-made set. 2. Close the day. Answer 15 short questions, three per target. Tap and keep moving. 3. Read your Report Card. Each target gets a letter grade, and so does your day. See what pulled the day down and what lifted it. 4. Watch the pattern. Trends lines up your days, weeks and two-week stretches. BUILT TO BRING YOU BACK, NOT TO SHAME YOU - Grades never fall below C-. A rough day still counts, and one bad target cannot sink the whole day. - Clean answers show progress even on hard days, and One Move names tomorrow's next step. - Changed your mind? Edit today's answers and the Report Card updates instantly. - Add quick notes to the day, before or after you check in. - A streak counter keeps your run of closed days in view, with one rest day a week. PRIVATE BY DEFAULT - Your ledger stays on your device. No account, no sign-up. - Export and import your full ledger whenever you want. - Optional AI read: only when you ask, Ledger OS sends that day's or week's summary to Anthropic's Claude using your own API key. Ledger OS is a self-reflection tool. It is not medical, financial or treatment advice.

Screenshots

Quick Todo4 screens
Ledger OS4 screens

Verdict

The call

The clearest difference is in-app purchases: Ledger OS at none against Quick Todo's 1. Ledger OS also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence 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. Quick Todo sells 1 one-off in-app purchase. Ledger OS asks for nothing beyond the download.

UpkeepUpdate frequency

Quick Todo ships an update every 3 weeks, Ledger OS every 5 weeks. The most recent releases landed on October 27, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 5 level
Quick Todo versus Ledger OS: the parameters behind the verdict, then further details
ParameterQuick TodoLedger OS
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size91 MB34 MB
Age rating4+12+
DeveloperAns (KR)Elvis Martinez

In-app purchases

1 purchases

Quick Todo

One-time1
  • premium - remove ad$0.99
None

Ledger OS

No in-app purchases

Questions

Is Quick Todo free?
Quick Todo is free to download, with in-app purchases available.
Is Ledger OS free?
Ledger OS is free to download, with no in-app purchases.
Do Quick Todo or Ledger OS have ads?
Quick Todo shows ads; Ledger OS does not.
Which is updated more often, Quick Todo or Ledger OS?
Quick Todo ships an update every 3 weeks, and Ledger OS every 5 weeks. Most recently, Quick Todo was updated on October 27, 2026 and Ledger OS on October 21, 2026.

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