Backlog by Time Engine vs idag
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Backlog by Time Engine
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Backlog is a time based todo list, add an backlog, add items and subitems to it, associate it with a time amount representing a how much it will take to be done with it. Backlog adds all your items time and show how much workload you have. Simply check and uncheck items, move them to prioritize them or delete them.
idag
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Meet idag - your all-in-one productivity companion that helps you stay focused, organized, and accomplish more every day. KEY FEATURES: Task Management ā¢ Intuitive task creation and organization ā¢ Priority levels and due dates ā¢ Subtasks and checklists ā¢ Project organization Focus & Time Management ā¢ Pomodoro timer with customizable intervals ā¢ Productivity analytics Habit Building ā¢ Create and track daily habits ā¢ Streak monitoring ā¢ Progress visualization ā¢ Habit statistics Productivity Insights ā¢ Beautiful productivity charts ā¢ Most productive times Policy: https://tally.so/r/mYo5xq Download idag today and transform your productivity journey with our beautiful, intuitive interface designed for daily success. TERMS OF USE :https://tally.so/r/mYo5xq
Screenshots
Verdict
The clearest difference is in-app purchases: Backlog by Time Engine at none against idag's 3. idag's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. idag sells 3 in-app purchases, starting at $2.99 per 7 days. Backlog by Time Engine asks for nothing beyond the download.
Backlog by Time Engine ships an update every 3 weeks, idag every 5 days. The most recent releases landed on September 19, 2026 and May 17, 2026 respectively.
| Parameter | Backlog by Time Engine | idag |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 5 days ā better |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone | iPhone, iPad ā better |
| Requires iOS | 16.4 ā better | 17.6 |
| Further details ā not scored | ||
| Size | 3 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | 100-8 Studio | mansour mahamat |
In-app purchases
Backlog by Time Engine
No in-app purchases
idag
- Premium weekly$2.997 Days
- Premium Month$4.991 Month
- Premium Year$39.991 Year
