ToDev vs Zen Pi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ToDev
This app helps you organize tasks, projects, and clients to boost productivity. It offers detailed progress tracking with notes and syncs across all your devices. Ideal for freelancers and professionals managing their business.
- Task and project planning
- Detailed progress tracking with notes
- Client and project linking
- Invoice management
- Cross-device syncing
- Weekly summary view
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ToDev List: Your All-in-One Organizer for Tasks, Projects & Clients Stay Organized and Productive: Plan your week effectively by adding upcoming tasks and projects. With a clear weekly summary, you can check off completed items and easily track your progress. Detailed Progress Tracking: Keep notes for each task so you can revisit important details whenever needed. Your tasks remain safely stored until you choose to delete them, providing a complete history of your work. Tailored for Freelancers and Professionals: Manage every aspect of your business in one place. Link clients to projects, monitor client relationships, and even add invoices to get a clear view of your finances. With ToDev List, staying on top of your business is easier than ever. Sync Across All Your Devices: Access your projects, tasks, and business data from any device with automatic syncing. Enjoy peace of mind knowing that your work is updated and accessible wherever you go. Only on ToDev List—Your Complete Productivity Partner!
Zen Pi
This app helps you manage your time by breaking it down into weekly and daily increments. It tracks time remaining in seconds for both the day and the year, and offers a daily astrological outlook.
- Weekly time management
- Daily time tracking in seconds
- Time remaining in year calculation
- Daily astrological outlook
- Productivity enhancement
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Use Zen Pi to work in increments of weeks. The days will pass quickly, that is why Zen Pi tracks the week number. Zen Pi can help you be productive, and make good use of your time. You can work with each week, and each day as they come and go. Features the time remaining each day in seconds. And the time remaining this year in seconds. Also we provide a daily outlook, a modern day astrological forecast each day, for you to use.
Screenshots
Verdict
The clearest difference is ads: Zen Pi at none against ToDev's shown. Zen Pi also leads on monetization model (free vs ad-supported). ToDev's advantage is update cadence (every 6 weeks vs every 7 months). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for ToDev against 5.0 for Zen Pi. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
ToDev ships an update every 6 weeks, Zen Pi every 7 months. The most recent releases landed on June 11, 2026 and July 30, 2026 respectively.
| Parameter | ToDev | Zen Pi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 6 weeks — better | Every 7 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 16.6 |
| Further details — not scored | ||
| Size | 48 MB | 1 MB |
| Age rating | 4+ | 17+ |
| Developer | Dimitrios Kyriakakis | Christopher Huffaker |
Customer experience
ToDev
Zen Pi
In-app purchases
ToDev
No in-app purchases
Zen Pi
No in-app purchases








