Quick Todo vs Ledger OS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quick Todo
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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.
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.
- 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
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Ledger OS is an offline-first daily operating system for behavioral clarity. Instead of tracking random habits, Ledger OS scores your day across five weighted pillars. Capture notes in the moment, complete a structured daily check-in, return to Today for the immediate payoff, and open the Report Card for deeper review and answer correction. Then use Summary and Trends to review daily, weekly, and biweekly patterns over time. Key features: • 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 and restore • Optional AI summary tools Ledger OS is built for people who want a repeatable personal operating system, not a generic habit list.
Screenshots
Verdict
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
Both are free to download. Quick Todo sells 1 one-off in-app purchase. Ledger OS asks for nothing beyond the download.
Quick Todo ships an update every 3 weeks, Ledger OS monthly. The most recent releases landed on September 11, 2026 and September 17, 2026 respectively.
| Parameter | Quick Todo | Ledger OS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 91 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Ans (KR) | Elvis Martinez |
In-app purchases
Quick Todo
- premium - remove ad$0.99
Ledger OS
No in-app purchases









