ToDo Tab vs Spy PDF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ToDo Tab
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Thank you for using our service. ToDo Tab is a ToDo app that lets you manage your tasks using tabs and track deadlines. It’s designed not only with the intuitive clarity of the standard iPhone UI in mind, but also with a focus on delivering a distinctive and satisfying user experience. In addition to tabs and deadlines, the app offers many other useful features: Convenient Features: Register todos directly from the launch screen. Add deadlines to tasks. View lists of tasks with upcoming or overdue deadlines. Easily move tabs or todos by dragging. Set colors for tabs for enhanced clarity. Supports dark mode. Vertically arranged tabs for easy viewing. Customize tab widths. Attach notes to todos.
Spy PDF
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Spy PDF – Fast & Clean PDF Viewer No need to install heavy, complex apps just to view a single PDF. With Spy PDF, simply select your file and it opens instantly. That’s it. [Key Features] - Instant Launch – Open PDF files immediately with a single tap. - Recent Files – Access your frequently viewed files right from the list. - Smooth Scrolling – Read naturally with fluid page transitions. - Landscape & Portrait Support – Optimized for any orientation you prefer. - Error-Free Rendering – Stable performance with corrupted file alerts. [Recommended For] - Anyone who wants to open PDF attachments from emails instantly. - Professionals and students who frequently read contracts, resumes, or research papers. - Users who want a lightweight viewer without bloated, unnecessary features. - Those who want to quickly find older files from a recent history list. No accounts. No sign-ins. Just open and read. With Spy PDF, viewing PDFs is no longer a hassle.
Screenshots
Verdict
The clearest difference is ads: Spy PDF at none against ToDo Tab's shown. Spy PDF also leads on iOS requirement (13.0 vs 18.0). On price, in-app purchases and device support 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.
| Parameter | ToDo Tab | Spy PDF |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Masaya Sugino | JAEMIN LEE |
In-app purchases
ToDo Tab
No in-app purchases
Spy PDF
No in-app purchases









