Comparison

Flash mental calculation vs SOLOPRA

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

Head to head
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.

About

SOLOPRA

Create custom math problems for abacus and mental calculation practice. Supports addition, subtraction, mixed addition/subtraction, multiplication, division, and flash mental arithmetic with adjustable difficulty and speed.

Highlights
  • Customizable addition and subtraction problems
  • Adjustable difficulty for mixed addition/subtraction
  • Flexible multiplication and division settings
  • High-speed flash mental arithmetic mode
  • Personalizable display options for flash mode
Features
Read full description

そろばんや暗算の問題作成アプリです。 たし算、ひき算、みとり算、かけ算、わり算、フラッシュ暗算の問題が利用できます。 ■たし算、ひき算 繰り上がり(繰り下がり)の設定を行うことができます。五玉の合成・分解、繰り上がり、その両方の細かな設定を行うことができ、そろばん始めたての子供に優しい問題作成ツールとなっています。 ■見取り算 たし算、ひき算と同様、細かなレベル設定に加え、桁数の範囲を設定でき口数、問題数も自在に変更できます。 答えの欄をタップしてすぐに答えの確認もすることができます。 ■かけ算、割り算 小数点の有無に加え、わり算はわる数と答えの桁数を設定するモードとわられる数とわる数の桁数を設定するモードを使用できます。検定用に自在に問題を変えることが可能です。 ■フラッシュ暗算 独自のアルゴリズムを用いて、最速0.02秒の間隔で問題を表示させることが可能です。ギネス記録の速さを遥かに超えるスピードで問題の提供が可能になりました。また、プレビュー画面で文字サイズ、文字の色、背景の色を設定でき自分にあうモードを選べます。

Screenshots

Flash mental calculation3 screens
SOLOPRA4 screens

Verdict

The call

The clearest difference is price: Flash mental calculation at Free against SOLOPRA's $4.99. SOLOPRA's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, 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

Flash mental calculation is free to download; SOLOPRA costs $4.99 up front. Flash mental calculation sells 1 one-off in-app purchase. SOLOPRA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Flash mental calculation against 5.0 for SOLOPRA. That said, the two scores are not equally well evidenced: SOLOPRA has 10 ratings behind it against 2, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Flash mental calculation versus SOLOPRA: the parameters behind the verdict, then further details
ParameterFlash mental calculationSOLOPRA
PriceFree — better$4.99
Rating5.0 (2 ratings)5.0 (10 ratings)
Positive reviews100.0% of reviews—
Number of ratings210 — better
Update frequencyEvery 5 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.2
Further details — not scored
Size11 MB1 MB
Age rating4+4+
Developerkenji kiuchiNaoki Fujimura

In-app purchases

1 purchases

Flash mental calculation

One-time1
  • Remove AD & All function Release.$9.99
None

SOLOPRA

No in-app purchases

Questions

Is Flash mental calculation free?
Flash mental calculation is free to download, with in-app purchases available.
Is SOLOPRA free?
SOLOPRA costs $4.99, with no in-app purchases.
Which has better reviews, Flash mental calculation or SOLOPRA?
Flash mental calculation and SOLOPRA are both rated 5.0 out of 5 on the App Store, from 2 and 10 ratings respectively.
Do Flash mental calculation or SOLOPRA have ads?
Flash mental calculation shows ads; SOLOPRA does not.

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