Comparison

PH System vs To Do Fusen

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

Head to head

Super easy to use ToDo app

Free

📊 Productivity

No ratingsView app →

About

PH System

Features

Read full description

在庫管理を行うアプリです。JANコード、Code39等の読取に対応しています。

About

To Do Fusen

This app functions like a digital sticky note for managing your tasks. Easily add, organize, and customize notes with various colors. It offers helpful features like sorting, hiding completed items, and badge notifications for pending tasks.

Highlights

Add sticky notes
6 color options
Sort sticky notes
Show/hide completed tasks
Badge notifications
Dark mode support
iCloud syncing

Features

Read full description

Super easy to use ToDo app. It's like a Sticky note that you can peel off. - Add sticky notes - 6 color sticky notes to choose - Sort sticky notes - Delete sticky notes - Show/hide completed Todos - Badge notification of the number of incomplete Todos - Supports dark mode - Supports syncing Todos using iCloud

Screenshots

PH System3 screens

To Do Fusen4 screens

Verdict

The call

The clearest difference is update cadence: To Do Fusen at every 2 months against PH System's every 15 months. On price, ads, 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.

UpkeepUpdate frequency

PH System ships an update every 15 months, To Do Fusen every 2 months. The most recent releases landed on October 25, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 7 level

PH System versus To Do Fusen: the parameters behind the verdict, then further details
Parameter	PH System	To Do Fusen
Price	Free	Free
Positive reviews	—	66.7% of reviews
Update frequency	Every 15 months	Every 2 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13 — better	13.4
Further details — not scored
Size	25 MB	2 MB
Age rating	4+	4+
Developer	barnet Inc.	Sparks & Company, Inc.

In-app purchases

None

PH System

No in-app purchases

None

To Do Fusen

No in-app purchases

Questions

Is PH System free?

PH System is free to download, with no in-app purchases.

Is To Do Fusen free?

To Do Fusen is free to download, with no in-app purchases.

Do PH System or To Do Fusen have ads?

Neither PH System nor To Do Fusen shows ads.

Which is updated more often, PH System or To Do Fusen?

PH System ships an update every 15 months, and To Do Fusen every 2 months. Most recently, PH System was updated on October 25, 2026 and To Do Fusen on November 3, 2026.