GSDlist vs Backlog by Time Engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSDlist
This app offers a fresh approach to task management, allowing users to create detailed to-do lists with tags, locations, and team collaboration. It helps organize tasks by time, category, and location to create a focused daily list for efficient productivity.
- Task management with tags
- Location-based task organization
- Team collaboration features
- Categorization of tasks
- Daily 'Today' list creation
- Time-based task management
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A new take on ToDo Lists and task management with tags, locations, verbs, teams, and power. Build a deep list of things you intend to do, and manage them by time, category, and location into a Today list -- Getting' Stuff Done. The author is a veteran Apple developer and built this for his own use, and has over 37,000 closed items in the app, over almost 10 years of use. It's a good app.
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.
Screenshots
Verdict
The clearest difference is update cadence: Backlog by Time Engine at every 3 weeks against GSDlist's every 9 months. GSDlist's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
GSDlist ships an update every 9 months, Backlog by Time Engine every 3 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.
| Parameter | GSDlist | Backlog by Time Engine |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 28 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Glenn Reid | 100-8 Studio |
In-app purchases
GSDlist
No in-app purchases
Backlog by Time Engine
No in-app purchases
