Comparison

Paired Comp vs Flash mental calculation

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

Head to head
About

Paired Comp

Features
Read full description

「Paired Comp」は、一対比較法(paired comparison)を用いた評価実験を実施するためのアプリです。一対比較法とは、複数の対象の評価を行って尺度化を行いたい場合に、評価対象の中から2つを取り出して比較し、この比較をすべての組み合わせにおいて実施する方法です。本アプリは、比較したい対象のPDFファイルを用意するだけで、一対比較法による評価実験をiPadで実施することを可能にします。  例えば、書体の好みに関する尺度を作成したい場合、比較したい書体をPDFファイルで用意するだけで、アプリが自動的にペアを作成し、一対比較法による実験を実施してくれます。どちらが好きかを選択するサーストンの方法だけでなく、どちらがどの程度好きかを評価するシェッフェの方法にも対応しています。  なお、本アプリの開発にあたっては、文部科学省科学研究費基盤研究(A)「通常の学級で学ぶ視覚障害児のための合理的配慮に関する支援システムの構築」(課題番号16H02072)、株式会社モリサワの援助を受け、河瀬和真氏がコーディングを行いました。本アプリを開発するにあたっては、小松真也氏、草野勉氏、株式会社加賀ソルネットの協力を得ました。

About

Flash mental calculation

Practice mental arithmetic with this educational app. Review your calculation process, and easily re-challenge mistaken problems from your past logs. Upgrade to save more calculation history.

Highlights
  • Practice flash mental arithmetic
  • Review calculation process
  • Rechallenge mistaken problems
  • Save past calculation logs
  • Log history saved after purchase
Features
Read full description

This app that you can practice flash mental arithmetic. You can review the calculation process by tapping the confirmation button after calculation. In addition, since the question which was made is saved in the past log, you can rechallenge the mistaken problem later. The past logs are saved for 10 questions before purchase, and 150 questions can be saved after purchase. ■ Past log Challenge mode, practice mode questions and results are automatically saved. Touch the challenge button to re-challenge the question. The past logs are saved for 10 questions before purchase and 150 questions are stored after purchase.

Screenshots

Paired Comp2 screens
Flash mental calculation3 screens

Verdict

The call

The clearest difference is review sentiment: Flash mental calculation at 100% against Paired Comp's 0%. Paired Comp's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement 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. Flash mental calculation sells 1 one-off in-app purchase. Paired Comp asks for nothing beyond the download.

UpkeepUpdate frequency

Paired Comp ships an update every 10 days, Flash mental calculation every 5 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Paired Comp versus Flash mental calculation: the parameters behind the verdict, then further details
ParameterPaired CompFlash mental calculation
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 10 days — betterEvery 5 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.6
Further details — not scored
Size11 MB11 MB
Age rating4+4+
DeveloperClimb Appkenji kiuchi

Customer experience

Paired Comp

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Flash mental calculation

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Paired Comp

No in-app purchases

1 purchases

Flash mental calculation

One-time1
  • Remove AD & All function Release.$9.99

Questions

Is Paired Comp free?
Paired Comp is free to download, with no in-app purchases.
Is Flash mental calculation free?
Flash mental calculation is free to download, with in-app purchases available.
Do Paired Comp or Flash mental calculation have ads?
Flash mental calculation shows ads; Paired Comp does not.
Which is updated more often, Paired Comp or Flash mental calculation?
Paired Comp ships an update every 10 days, and Flash mental calculation every 5 months. Most recently, Paired Comp was updated on October 26, 2026 and Flash mental calculation on October 24, 2026.

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