Comparison

スピフル vs Strideline

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

Head to head
About

スピフル

This app enhances English speaking skills through AI-powered oral composition and monologue training. It offers personalized feedback and practical business scenarios to improve fluency and expression, building on proven methodologies.

Highlights
  • AI scoring and feedback
  • Oral composition training
  • Monologue English conversation practice
  • Real-time発話 speed measurement
  • Extensive business例文 library
  • AI speech correction
Features
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英語がパッと出ない、表現の幅が広がらない、英会話で成長を実感できない... 英語スピーキングの「瞬発力」「表現の幅」の課題を「瞬間英作文」「独り言英会話」のトレーニングで解決します。 AI採点、AI添削により効率良くあなたの英語力の課題を解決可能。25,000人のビジネスパーソンの英語力向上を支援してきた「プログリット」だからこそ提供できる、スピーキング対策の「正解」がわかるアプリです。 <有料プラン内容> スピーキング力を伸ばせる2つのレッスンをご提供いたします。 1. 瞬発力を身につける「瞬間英作文」 - 発話スピードの測定により成長を日々実感できます - 7,000以上の実践的なビジネス例文でスピーキング力を鍛えます 2. 表現の正解がわかる「独り言英会話」 - 300以上の豊富なテーマから選択し、1分間自由にスピーチをします - 録音データをご提出頂き、1日1回までAIがスピーチ添削をいたします <解約方法> 1.「設定」アプリを開く 2.「(ご自身の)お名前」をタップ 3.「サブスクリプション」をタップ 4.「スピフル」をリストから選択 5.「サブスクリプションをキャンセルする」をタップ <運営するプログリットの特徴> ①第二言語習得論と1万人以上のデータに基づく科学的な専用カリキュラムを提供。 人が外国語を習得するプロセスの研究である第二言語習得論に基づき、あなたの弱点や目標から、最適な学習方法・時間を特定。さらに英語コーチングを主要事業とする唯一※の上場企業として、1万人以上の学習データをもとに、科学と実践データの両面から専用のカリキュラムを作成します。※英語学習サービスに関わる上場企業の各社IR情報による(2023/9/1時点 当社調べ) ②英語学習の専門家がマンツーマンでコーチング。 プログリットの専属英会話コーチは、応募者数千名から採用率0.88%※を通過したビジネス英語のプロ。英語学習における目標設定、弱点の発見とそれに基づくカリキュラム提案から、日々の実行のサポートまで、英語を教えるのでなく、あなたの英語学習におけるあらゆる課題を解決します。性格診断の結果を踏まえてアサインされた専属英会話コーチが、あなたの英語学習に本気で向き合います。 ③学習効率・投下時間を最大化する利便性の高い学習アプリ。 ほぼ全ての学習コンテンツを専用アプリに搭載することで、いつでも、どこでも、あなた専用の効率的な英語学習が可能に。さらに、進捗管理アプリによって、リアルタイムで日々の学習状況を見える化。専属英会話コーチは毎日それをチェックし、英語添削とチャットによって、徹底的にフォローします。先進的なテクノロジーと専門家のサポートにより、毎日3時間の良質な英語学習を実行いただけます。 プライバシーポリシー : https://www.supiful.jp/privacy 利用規約: https://www.supiful.jp/terms 特定商取引法に基づく表示 : https://www.supiful.jp/law Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Strideline

Features
Read full description

A study schedule app that shows, at a glance, what you did today and how long it took. Strideline: Study Pacer is built for 4th–6th grade students preparing for entrance exams, and for the families supporting them. The loop is simple: plan in the morning, tap to start the timer, tap to stop. The app quietly records the rest. ——————————— THREE DESIGN PRINCIPLES ——————————— ▸ Show what was actually done No flashy auto-scheduler. You line up the day's blocks in the morning, and the app preserves exactly when each one started and ended. A central progress ring plus a vertical timeline shows today's reality in a single glance. ▸ No-type UX Starting a timer, stopping it, swapping blocks, inserting a break — almost everything is a tap or a gesture. Typing is required only when you first register a textbook; after that, "recently used materials" gives you a one-tap add. ▸ Beauty as fuel for daily practice A glass-modern iOS-26-era UI. A subtle pulsing glow on the block that's running. The honest satisfaction of a check mark when it's done. Themes from snow white to true midnight. The grind of exam prep gets one small, quiet joy added to it. ——————————— KEY FEATURES ——————————— • Time blocking: planned blocks bound to recorded actual times • Timer: tap ▶ to start, ■ to stop. Live Activity keeps running when the app is closed • Progress ring: today's completion rate and total time at center • Vertical timeline: the whole day in one scroll • Material library: one tap to add a recently used textbook to today • Countdowns: days until mocks, exams, results — on home screen and widget • Statistics: subject-stacked bar charts, donut, daily trend, weekday averages • Calendar: 13 months vertically scrollable, heatmap, monthly summary • Weather overlay: weekly view with current location or Tokyo forecast • Multiple profiles: switch between siblings (2nd+ profile requires Pro) • Home Screen widgets: today's plan and countdown • Lock Screen Live Activity: running timer • Start chime / overrun prompt • iCloud sync (planned) ——————————— WHO IT'S FOR ——————————— • 4th–6th graders attending cram school in Japan • Long-haul scheduling for summer and winter intensives • Households with two or more kids sharing one iPhone or iPad • Anyone tracking the runway to a single high-stakes exam date ——————————— FREE AND PRO ——————————— • Free: 1 profile, all core features, 3 themes, up to 3 countdowns • Pro: a one-time purchase. Up to 5 profiles, all 28 themes, unlimited countdowns, advanced statistics, 3D carousel view, PDF export • No subscriptions, ever. ——————————— PRIVACY ——————————— • Zero tracking SDKs. Zero ad SDKs. • Your child's study data is stored on-device only. • Location is requested once for weather and is optional (Tokyo as fallback). ——————————— Exam prep is a long, quiet journey for kids and parents alike. Strideline is the careful diary that walks alongside it. Questions or feedback: taro.hamuro@gmail.com.

Screenshots

スピフル4 screens
Strideline4 screens

Verdict

The call

The clearest difference is in-app purchases: スピフル at none against Strideline's 1. Strideline's advantage is update cadence (daily vs fortnightly). On price, ads, 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. Strideline sells 1 one-off in-app purchase. スピフル asks for nothing beyond the download.

UpkeepUpdate frequency

スピフル ships an update fortnightly, Strideline daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
スピフル versus Strideline: the parameters behind the verdict, then further details
ParameterスピフルStrideline
PriceFreeFree
Rating4.0 (36 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings36 — better—
Update frequencyFortnightlyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreemium—
DevicesiPhoneiPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size49 MB20 MB
Age rating4+4+
DeveloperPROGRIT Inc.Takayuki Hamuro

In-app purchases

None

スピフル

No in-app purchases

1 purchases

Strideline

One-time1
  • Strideline Pro$4.99

Questions

Is スピフル free?
スピフル is free to download, with no in-app purchases.
Is Strideline free?
Strideline is free to download, with in-app purchases available.
Do スピフル or Strideline have ads?
Neither スピフル nor Strideline shows ads.
Which is updated more often, スピフル or Strideline?
スピフル ships an update fortnightly, and Strideline daily. Most recently, スピフル was updated on October 25, 2026 and Strideline on October 24, 2026.

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