Comparison

周期カレンダー vs Source Browser for Research

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

Head to head
About

周期カレンダー

Features
Read full description

周期カレンダーは週・月・年以外のオリジナル周期を設定できるカレンダーアプリです。 設定した周期に応じて、カレンダーの左側に「A週」というように表示されます。 【こんな方にオススメ】 ●3週間に1回、美容院に行く ●4週間に1回、植木に肥料を与える ●8週間に1回、掃除を依頼する 【主な機能】 ●周期の詳細設定  ・ABCD週, いろはに週, 1234週  ・1周期を何週とするか  ・どの週を周期の開始週とするか

About

Source Browser for Research

Features
Read full description

Source Browser is a browser designed to turn what you find on the web into something you can actually use later. Instead of simply saving pages to “read later,” you can keep screenshots, screen recordings, quotes, links, and analysis results, then organize them together in NOTE. Capture a moment with SHOT. Record the flow of a page with REC. Save important passages as quotes, while keeping everything connected to its original source. Your collected materials can be organized, rearranged, and edited in a conversation-style NOTE. Research. Save. Connect. Source Browser turns your browsing into material for your next idea.

Screenshots

周期カレンダー3 screens
Source Browser for Research4 screens

Verdict

The call

The clearest difference is in-app purchases: 周期カレンダー at none against Source Browser for Research's 1. 周期カレンダー also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.2). On price, update cadence and ads 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. Source Browser for Research sells 1 one-off in-app purchase. 周期カレンダー asks for nothing beyond the download.

UpkeepUpdate frequency

周期カレンダー ships an update every 4 days, Source Browser for Research every 3 days. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 3 level
周期カレンダー versus Source Browser for Research: the parameters behind the verdict, then further details
Parameter周期カレンダーSource Browser for Research
PriceFreeFree
Update frequencyEvery 4 daysEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.2
Further details — not scored
Size17 MB6 MB
Age rating4+17+
DeveloperFree Canvas Co., Ltd.YUKIYA SHIMODA

In-app purchases

None

周期カレンダー

No in-app purchases

1 purchases

Source Browser for Research

One-time1
  • TEXT MAP$1.99

Questions

Is 周期カレンダー free?
周期カレンダー is free to download, with no in-app purchases.
Is Source Browser for Research free?
Source Browser for Research is free to download, with in-app purchases available.
Do 周期カレンダー or Source Browser for Research have ads?
Neither 周期カレンダー nor Source Browser for Research shows ads.
Which is updated more often, 周期カレンダー or Source Browser for Research?
周期カレンダー ships an update every 4 days, and Source Browser for Research every 3 days. Most recently, 周期カレンダー was updated on October 12, 2026 and Source Browser for Research on October 11, 2026.

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