Comparison

ToDo Tab vs Spy PDF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ToDo Tab

Features
Read full description

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.

About

Spy PDF

Features
Read full description

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

ToDo Tab4 screens
Spy PDF3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences · 4 level
ToDo Tab versus Spy PDF: the parameters behind the verdict, then further details
ParameterToDo TabSpy PDF
PriceFreeFree
Update frequencyEvery 4 days—
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.013.0 — better
Further details — not scored
Size6 MB32 MB
Age rating4+4+
DeveloperMasaya SuginoJAEMIN LEE

In-app purchases

None

ToDo Tab

No in-app purchases

None

Spy PDF

No in-app purchases

Questions

Is ToDo Tab free?
ToDo Tab is free to download, with no in-app purchases.
Is Spy PDF free?
Spy PDF is free to download, with no in-app purchases.
Do ToDo Tab or Spy PDF have ads?
ToDo Tab shows ads; Spy PDF does not.

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