Comparison

Parallel Chronology vs TimeLine

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

Head to head
About

Parallel Chronology

Explore historical events and fictional timelines side-by-side. Compare information across different categories and time periods, from the dawn of the universe to the present and beyond. Discover new insights by juxtaposing diverse data points on an infinitely scrolling timeline.

Highlights
  • Side-by-side information display
  • Story units for comparative analysis
  • Infinite scroll timeline (99.9 billion BC to 99.9 billion AD)
  • Tool for historical discovery
  • Supports custom fictional data
  • Links to Wikipedia for details
  • Universal device support (iPhone/iPad)
Features
Read full description

## Parallel comparison ## You can display various informations with time attributes unit of year side by side, regardless of a specific category such as Japanese history or world history. ## Story Unit ## Multiple data are displayed together in a unit "Story", so you can easily compare informations along with different viewpoints. ## Almost infinite scroll ## You can display Informations from before the birth of the universe (13.8 billion years ago) to the present on the same timeline. It is almost infinite scroll by practical usage. It is about a range of 99.9 billion BC to 99.9 billion AD. ## Tool for new discovery ## Comparing historical figures of various countries, or history of natural disasters and wars, which may deepen your understanding of history or make new discoveries. ## It's OK on any data ## You can create Story and datas of it. It's OK not only data on history, but fictional datas such as in novels, movies, and completely original datas. ex. * History of characters in SF novels * Genealogy of ancestors * Data for memorization of historical terms ## Easy to check detail informations ## Each data on the chronology is linked to page of Wikipedia, so if its title exists, you can check the detail information immediately. This is the same even if it is data created by yourself. ## Universal devices ## This app supports universal devices, so you can use comfortably with either iPhone of iPad. In addition, you can rotate either horizontally or vertically. So you can rotate it according to your preference, for example in case you want to display a longer period, want to compare a lot of informations. This app is developed as you can use even if on 4-inch iPhone SE. If you will be using on large resolution device like iPad Pro, more comfortable.

About

TimeLine

Create custom historical timelines by inputting categories and events with their dates. Supports events from 3000 BCE to 3000 CE. A simple tool for visualizing historical periods.

Highlights
  • Input custom categories
  • Input historical events with dates
  • Supports BCE and CE dates
  • Visualize historical periods
  • Create personal timelines
Features
Read full description

・カテゴリ と できごと を入力できます。 例 カテゴリ 日本 出来事 江戸時代 1603 1867 ・紀元前3000~3000年のできごとが入力できます。

Screenshots

Parallel Chronology3 screens
TimeLine4 screens

Verdict

The call

The clearest difference is in-app purchases: Parallel Chronology at none against TimeLine's 1. Parallel Chronology also leads on ads (none vs shown). On price, review sentiment, update cadence 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. TimeLine sells 1 one-off in-app purchase. Parallel Chronology asks for nothing beyond the download.

UpkeepUpdate frequency

Parallel Chronology ships an update every 5 months, TimeLine every 6 months. The most recent releases landed on October 7, 2026 and September 17, 2026 respectively.

Scorecard3 real differences · 7 level
Parallel Chronology versus TimeLine: the parameters behind the verdict, then further details
ParameterParallel ChronologyTimeLine
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews64.3% of reviews — better57.1% of reviews
Number of ratings1 — better—
Update frequencyEvery 5 months — betterEvery 6 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size14 MB83 MB
Age rating12+4+
DeveloperNeusara LLCSumie Watanabe

Customer experience

Parallel Chronology

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews14 reviews
Positive64.3%
Neutral21.4%
Negative14.3%

TimeLine

Written reviews7 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

In-app purchases

None

Parallel Chronology

No in-app purchases

1 purchases

TimeLine

One-time1
  • 歴史年表を作ろう 広告非表示$1.99

Questions

Is Parallel Chronology free?
Parallel Chronology is free to download, with no in-app purchases.
Is TimeLine free?
TimeLine is free to download, with in-app purchases available.
Do Parallel Chronology or TimeLine have ads?
TimeLine shows ads; Parallel Chronology does not.
Which is updated more often, Parallel Chronology or TimeLine?
Parallel Chronology ships an update every 5 months, and TimeLine every 6 months. Most recently, Parallel Chronology was updated on October 7, 2026 and TimeLine on September 17, 2026.

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