Comparison

Knows vs VoltOnoSprint

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

Head to head

Timer system

About

Knows

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本田圭佑の考えるテクノロジーがスポーツを進化させる EPTS（エレクトロニック・パフォーマンス＆トラッキング・システム）運動中のパフォーマンスを計測する高機能センサー。心拍数や運動負荷、疲労回復スピードなどを測定し、プレー中の推移をリアルタイムで数値化。データを蓄積し事実と理論に基づいた的確なパフォーマンス向上の指導・育成を実現可能に。

About

VoltOnoSprint

This app connects to a dedicated server to enable timing measurements using a photoelectric sensor. It facilitates accurate time tracking for various sports and activities.

Highlights

Photoelectric sensor integration
Dedicated server connection
Accurate time measurement
Sports timing
CSV data export

Read full description

株式会社S-CADEのVoltOnoSprint専用サーバーに接続して、光電管によるタイム計測することができる光電管連携アプリになります！

Screenshots

VoltOnoSprint4 screens

Verdict

The call

The clearest difference is in-app purchases: Knows at none against VoltOnoSprint's 4. Knows also leads on iOS requirement (11.0 vs 15.4). VoltOnoSprint's advantage is device support (4 vs 1). On price, update cadence and ads 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. VoltOnoSprint sells 4 in-app purchases, starting at $0.99 per month. Knows asks for nothing beyond the download.

UpkeepUpdate frequency

Knows ships an update monthly, VoltOnoSprint every 3 weeks. The most recent releases landed on September 9, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 4 level

Knows versus VoltOnoSprint: the parameters behind the verdict, then further details
Parameter	Knows	VoltOnoSprint
Price	Free	Free
Update frequency	Monthly	Every 3 weeks — better
Ads	No	No
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPad	iPhone, iPad, iPod, Mac — better
Requires iOS	11.0 — better	15.4
Further details — not scored
Size	28 MB	73 MB
Age rating	4+	4+
Developer	SOLTILO Knows Inc	株式会社S-CADE

In-app purchases

None

Knows

No in-app purchases

4 purchases

VoltOnoSprint

Subscriptions4

1ユーザー+CSV出力プラン$0.991 Month
50ユーザー+CSV出力プラン$3.991 Month
100ユーザー+CSV出力プラン$6.991 Month

Show 1 more

1000ユーザー+CSV出力プラン$9.991 Month

Questions

Is Knows free?

Knows is free to download, with no in-app purchases.

Is VoltOnoSprint free?

VoltOnoSprint is free to download, with in-app purchases available.

Do Knows or VoltOnoSprint have ads?

Neither Knows nor VoltOnoSprint shows ads.

Which is updated more often, Knows or VoltOnoSprint?

Knows ships an update monthly, and VoltOnoSprint every 3 weeks. Most recently, Knows was updated on September 9, 2026 and VoltOnoSprint on September 21, 2026.