Comparison

名札交換 vs Optical flow Analysis

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

Head to head

Optical flow Analysis

Free

🔧 Utilities

★ 1.01 ratingsView app →

About

名札交換

Features

Read full description

NFC タグが搭載されたイベントの名札に iPhone を近づけると、簡単に名札の交換ができます。対応しているイベントの場合、その名札が1枚でも登録されているとイベント情報やタイムテーブル等を確認することもできます。イベントのタイムテーブルから好みのセッション・トーク等を選び、自分だけのタイムテーブルを作ることもできます。

About

Optical flow Analysis

Analyze motion between video frames and visualize object movement. This utility helps understand visual dynamics in sequences of images.

Highlights

Optical flow analysis
Visualize object movement
Frame-to-frame comparison
Motion tracking

Features

Read full description

Perform optical flow analysis and visualize the amount of object movement between consecutive frames

Screenshots

名札交換2 screens

Optical flow Analysis1 screens

Verdict

The call

The clearest difference is ads: 名札交換 at none against Optical flow Analysis's shown. 名札交換 also leads on update cadence (daily vs fortnightly). Optical flow Analysis's advantage is iOS requirement (17.7.2 vs 26.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

名札交換 ships an update daily, Optical flow Analysis fortnightly. The most recent releases landed on September 23, 2026 and October 4, 2026 respectively.

Scorecard3 real differences · 6 level

名札交換 versus Optical flow Analysis: the parameters behind the verdict, then further details
Parameter	名札交換	Optical flow Analysis
Price	Free	Free
Rating	—	1.0 (1 ratings) — better
Number of ratings	—	1 — better
Update frequency	Daily — better	Fortnightly
Ads	No — better	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone	iPhone
Requires iOS	26.0	17.7.2 — better
Further details — not scored
Size	8 MB	38 MB
Age rating	4+	4+
Developer	Ryoga Tanaka	Hideaki Uchikoshi

In-app purchases

None

名札交換

No in-app purchases

None

Optical flow Analysis

No in-app purchases

Questions

Is 名札交換 free?

名札交換 is free to download, with no in-app purchases.

Is Optical flow Analysis free?

Optical flow Analysis is free to download, with no in-app purchases.

Do 名札交換 or Optical flow Analysis have ads?

Optical flow Analysis shows ads; 名札交換 does not.

Which is updated more often, 名札交換 or Optical flow Analysis?

名札交換 ships an update daily, and Optical flow Analysis fortnightly. Most recently, 名札交換 was updated on September 23, 2026 and Optical flow Analysis on October 4, 2026.