Comparison

Add Up 10. vs LD

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

Head to head
About

Add Up 10.

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Arithmetic for the first step. You can learn to add and subtract easily and become familiar with numbers. Let's learn how to make 10 using two numbers. Add 1 to 9 is 10, 2 to 8 is 10, 3 to 7 is 10... The answer is always single-digit figure. Beat the Robo by answering the questions.

About

LD

Features
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ADHD(注意欠如多動性障害)・ASD(自閉症スペクトラム障害)・LD(学習障害)を中心とした学習に困難がある児童は、行動面の問題に比べ、学習面の問題は気づかれにくく、学びにくさへの支援が十分とは言えない状況です。その大きな要因の一つが、学習面でのアセスメントツールの不足でした。 LD-SKAIP(Screening Kit for Academic Intervention Program)は、学力のつまづきの状態と要因を3段階のステップの中で明確にし、その多様な検査結果から、個別の指導計画と教材選定、合理的配慮につながる的確な情報を得ることができます。 iPadを活用した検査であるため、子どもへの負担が少なく、また教示や分析作業の自動化、情報管理システム等により教師への負担も軽減しつつ、効率のよい、一貫した支援が可能となります。 ステップⅠでは、学校などでの支援に必要な発達の概要を把握するために、「話す・聞く」「読む・書く」「算数・その他」「行動」「社会性」の各分野別、合計93項目の「質問項目による査定」に回答し、結果を閲覧していただくことができます。

Screenshots

Add Up 10.4 screens

Verdict

The call

The clearest difference is ads: LD at none against Add Up 10.'s shown. Add Up 10.'s advantage is device support (3 vs 1). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Add Up 10. ships an update every 3 months, LD every 4 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 4 level
Add Up 10. versus LD: the parameters behind the verdict, then further details
ParameterAdd Up 10.LD
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 4 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS15.0 — better16.0
Further details — not scored
Size58 MB122 MB
Age rating4+4+
DeveloperMASAHIRO MIZUTANI一般社団法人 日本LD学会

In-app purchases

None

Add Up 10.

No in-app purchases

None

LD

No in-app purchases

Questions

Is Add Up 10. free?
Add Up 10. is free to download, with no in-app purchases.
Is LD free?
LD is free to download, with no in-app purchases.
Do Add Up 10. or LD have ads?
Add Up 10. shows ads; LD does not.
Which is updated more often, Add Up 10. or LD?
Add Up 10. ships an update every 3 months, and LD every 4 months. Most recently, Add Up 10. was updated on November 1, 2026 and LD on November 2, 2026.

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