Comparison

Sprint Start Trainer vs [陸上競技アプリ] スコア・sCORE

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

Head to head
About

Sprint Start Trainer

This app helps athletes practice sprint and swimming starts by measuring reaction time and reviewing technique using video. It offers various start signal sounds and timing modes to simulate real race conditions, turning your phone into a portable training tool.

Highlights
  • Video reaction time measurement
  • Technique review
  • Customizable start signal sounds
  • Fixed and randomized interval modes
  • Manual cue control
  • Automatic repeat starts
Features
Read full description

Practice track sprint and swimming starts with just one phone. Starter Kit is a start-training app for sprinters, swimmers, and coaches. It does more than play start signals: it lets you measure reaction time on video and review start technique. In Timing and Random modes, each video frame displays the time relative to the moment the start sound plays, with that moment set to zero. Read the displayed time on the frame where the athlete first moves to measure reaction time, then review technique in the same video. With fixed or randomized signal intervals, you can practice track block starts and swimming dive starts on your own or with a team. WHO IS IT FOR? • 100 m and 200 m sprinters • Track athletes who want to practice block starts • Swimmers who want to practice dive starts and improve their response to the start signal • Track-and-field coaches and swimming coaches running start drills • Athletes who want to improve reaction time and start technique KEY FEATURES ■ Video reaction-time measurement and technique review In Timing and Random modes, Starter Kit adds a timer to every video frame, using the start signal as zero. Read the value displayed on the frame showing the athlete's first visible movement to measure reaction time and review start technique. Videos can be saved to Photos, and recording can continue for up to 90 seconds after the start sound finishes. With up to 90 seconds of recording, you can also use the on-video timer to measure an accurate start-to-finish time. ■ Three start signal sounds Choose a pistol sound, swimming start beep, or electronic start sound to match your sport or training session. The swimming beep makes Starter Kit useful for swimming start practice as well as track sprint starts. ■ Timing mode: fixed intervals Set the timing between “On your marks,” “Set,” and the start signal. Repeat the same start sequence for individual or team practice. ■ Random mode: randomized intervals Randomize the intervals between “On your marks,” “Set,” and the start signal. The timing varies within your chosen range so athletes can practice reacting without anticipating the signal. ■ Manual mode: individual cues Play “On your marks,” “Set,” and the start signal separately. Use it for coach-led or group drills, or play the swimming start beep on its own at the pool. ■ Automatic repeat starts In Timing and Random modes, run start sequences repeatedly at an adjustable interval for efficient practice sets. Starter Kit turns your phone into a portable start-training tool for the track or poolside—no dedicated starting system required. Automatic repeat starts and custom recording durations require an upgrade.

About

[陸上競技アプリ] スコア・sCORE

Track your athletic performance with this app. It logs training, calculates injury risk with AI, and offers personalized coaching advice. Share your achievements and manage your progress effectively.

Highlights
  • Daily practice logging
  • AI injury risk score
  • Team condition overview
  • Personalized AI coaching
  • Shareable achievement cards
  • Race and personal best management
  • Sleep and nutrition tracking
Features
Read full description

sCORE(スコア)は、陸上競技に特化したパフォーマンス管理アプリです。 【主な機能】 ■ 練習記録 距離・本数・疲労度・コンディションを毎日記録。グラフで練習量の推移を確認できます。 ■ 怪我リスクスコア(AI自動算出) 天気・睡眠・疲労・練習量を複合分析し、0〜100のリスクスコアを毎日自動計算。リスクが高い日はストレッチを促します。 ■ チーム機能 コーチ・顧問は全選手のコンディションを一覧で確認。チームカレンダーで練習・試合の予定を共有できます。 ■ AIコーチアドバイス 蓄積された練習データをもとに、AIが個別のトレーニングアドバイスを提供します。 ■ シェアカード 自己ベスト・練習記録・連続記録日数をSNS映えするカードで出力。仲間と成果をシェアできます。 ■ 大会記録・自己ベスト管理 大会ごとの記録を保存し、自己ベストの推移をグラフで確認できます。 ■ 睡眠・栄養管理 睡眠時間・栄養バランスを記録し、コンディション管理をサポートします。 【こんな方に】 ・記録を継続できずに悩んでいる選手 ・怪我が多く、原因を把握したい選手 ・部員のコンディションを効率よく管理したいコーチ・顧問 ・データに基づいたトレーニングをしたい社会人ランナー 【料金】 基本機能は完全無料でご利用いただけます。 一部のAI機能は1日の無料利用枠を超えた場合、 短い動画広告を視聴することで追加利用できます。 利用規約(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー:https://n22et.hp.peraichi.com 利用規約:https://scorej-run.vercel.app/terms

Screenshots

Sprint Start Trainer3 screens
[陸上競技アプリ] スコア・sCORE4 screens

Verdict

The call

The clearest difference is update cadence: [陸上競技アプリ] スコア・sCORE at every 4 days against Sprint Start Trainer's every 3 weeks. Sprint Start Trainer's advantage is review sentiment (90% vs 72%). On price, ads, in-app purchases and monetization model 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. Sprint Start Trainer sells 1 one-off in-app purchase and [陸上競技アプリ] スコア・sCORE sells 9 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sprint Start Trainer ships an update every 3 weeks, [陸上競技アプリ] スコア・sCORE every 4 days. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 8 level
Sprint Start Trainer versus [陸上競技アプリ] スコア・sCORE: the parameters behind the verdict, then further details
ParameterSprint Start Trainer[陸上競技アプリ] スコア・sCORE
PriceFreeFree
Rating4.9 (16 ratings) — better—
Positive reviews90.0% of reviews — better71.8% of reviews
Number of ratings16 — better—
Update frequencyEvery 3 weeksEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size29 MB81 MB
Age rating4+4+
DeveloperKoki Osadateppei takeda

Customer experience

Sprint Start Trainer

All ratings16 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive90.0%
Neutral10.0%
Negative0.0%

[陸上競技アプリ] スコア・sCORE

Written reviews39 reviews
Positive71.8%
Neutral15.4%
Negative12.8%

In-app purchases

1 purchases

Sprint Start Trainer

One-time1
  • Premium Upgrade$4.99
9 purchases

[陸上競技アプリ] スコア・sCORE

Subscriptions7
  • 広告なしプラン3 Days trial$2.991 Month
  • チケット月額(限定¥680)3 Days trial$3.991 Month
  • チケット月額3 Days trial$5.991 Month
Show 4 more
  • コーチプラン7 Days trial$11.991 Month
  • コーチプラン$19.991 Month
  • 「広告なしプラン(年額)3 Days trial$29.991 Year
  • コーチプラン、年額3 Days trial$119.991 Year
One-time2
  • チケット15枚購入$1.99
  • チケット50枚$4.99

Questions

Is Sprint Start Trainer free?
Sprint Start Trainer is free to download, with in-app purchases available.
Is [陸上競技アプリ] スコア・sCORE free?
[陸上競技アプリ] スコア・sCORE is free to download, with in-app purchases available.
Do Sprint Start Trainer or [陸上競技アプリ] スコア・sCORE have ads?
Both Sprint Start Trainer and [陸上競技アプリ] スコア・sCORE show ads.
Which is updated more often, Sprint Start Trainer or [陸上競技アプリ] スコア・sCORE?
Sprint Start Trainer ships an update every 3 weeks, and [陸上競技アプリ] スコア・sCORE every 4 days. Most recently, Sprint Start Trainer was updated on November 10, 2026 and [陸上競技アプリ] スコア・sCORE on November 9, 2026.

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