Comparison

Abacus Lesson vs oneStep

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

Head to head
About

Abacus Lesson

Learn multiplication using a virtual abacus. This app teaches a simple and fast method for calculating multiplication, emphasizing the mental calculation benefits of the abacus over digital calculators.

Highlights
  • Virtual abacus for multiplication
  • Simple and fast calculation methods
  • Focus on mental calculation skills
  • Step-by-step multiplication lessons
  • Suitable for beginners
Features
Read full description

An abacus is named "Soroban" in Japan. Do you know what an abacus is? The abacus is very simple calculator used in China, Japan, Korea and so on. Some people may say "Isn't it an unnecessary tool if you have a calculator such as a smartphone?". Answer would be "No". The biggest difference between electric calculators and the abacus is whether you need to hold it in your hand when calculating. Because of its simplicity, you will be able to easily use the abacus in your mind. In the app, we will explain simple and fast method of the multiplication using the abacus. To learn multiplication, it is essential to be able to add with an abacus. If you are new to addition and subtraction, we recommend that You first learn with the following app. https://apps.apple.com/us/app/abacus-lesson-add-sub/id1526785916 This app will give you the skill of calculation of multiplication.

About

oneStep

Features
Read full description

「One-Step」は、発達特性(ADHD等)のあるお子さまとそのご家族のために生まれた、行動記録・承認アプリです。 ■ こんな方におすすめ ・お子さまの頑張りを見逃さず、ちゃんと認めてあげたい ・「怒る」より「認める」子育てに切り替えたい ・専門家(医師・支援員・先生)に客観的な記録を共有したい ・兄弟・祖父母とも、お子さまの成長を一緒に見守りたい ■ 主な機能 ◎ 複数端末でリアルタイム共有  お子さまの端末で記録 → 親の端末で即時に確認・承認。 ◎ ポイント&ストリーク  頑張りがポイントで貯まり、継続日数も自動集計。 ◎ ルーティン管理  毎日のお約束を登録し、達成率をカレンダーで色分け表示。 ◎ ご褒美機能  貯まったポイントでご褒美と交換。家族のルールを「見える化」。 ◎ CSV出力・URL共有  病院や学校への共有もスムーズ。 ◎ 多言語対応(日本語 / 英語 / 中国語) ■ One-Stepが大切にしていること 本アプリは、ADHDのお子さまを育てる開発者自身のペインポイントから生まれました。「叱る」ではなく「認める」。小さな一歩を積み重ねることで、お子さまの自己肯定感と、家族の信頼関係を育てます。 ルールは自由を狭めるものではなく、自由を広げるもの。 頑張りが日常になり、信頼が形になる・・・そんな毎日を、One-Step がお手伝いします。 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Abacus Lesson3 screens
oneStep4 screens

Verdict

The call

The clearest difference is ads: oneStep at none against Abacus Lesson's shown. Abacus Lesson's advantage is iOS requirement (11.0 vs 16). On price, in-app purchases 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. Abacus Lesson sells 3 one-off in-app purchases and oneStep sells 1 in-app purchase, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
Abacus Lesson versus oneStep: the parameters behind the verdict, then further details
ParameterAbacus LessononeStep
PriceFreeFree
Rating5.0 (15 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings15 — better—
Update frequencyEvery 2 weeks—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better16
Further details — not scored
Size138 MB20 MB
Age rating4+4+
DeveloperHirokazu Komatsuiwasa Chifumi

In-app purchases

3 purchases

Abacus Lesson

One-time3
  • Donation Lv1 for hiding Ad$1.99
  • Donation Lv2 for hiding Ad$3.99
  • Donation Lv3 for hiding Ad$8.99
1 purchases

oneStep

Subscriptions1
  • Premium Monthly$8.991 Month

Questions

Is Abacus Lesson free?
Abacus Lesson is free to download, with in-app purchases available.
Is oneStep free?
oneStep is free to download, with in-app purchases available.
Do Abacus Lesson or oneStep have ads?
Abacus Lesson shows ads; oneStep does not.

Other comparisons