Comparison

AirPhotoView vs Flash!!:次世代の英単語帳アプリ

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

Head to head
About

AirPhotoView

Features
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While some practice is required for naked-eye stereoscopic viewing, you can achieve stereoscopic vision by displaying overlapped two aerial photographs (or stereo-paired images) side by side. Aerial photographs and stereo-paired images are not included in this app. ・Naked-eye stereoscopic viewing refers to performing stereoscopic vision using only the naked eye, without tools such as stereoscopes, polarized glasses, or stereoscopic film. ・Aerial photo images shown on either side of the iPad display can be moved, enlarged, or reduced in size simultaneously using gestures (drag, pinch out, pinch in). ・The distance between two aerial photo images can be changed, freely. ・Aerial photographs can be downloaded from the Aerial Photograph Browsing Service of Geospatial Information Authority of Japan (GSI) and so on. ・If you can’t do stereoscopic viewing with only your naked eye, you can achieve stereovison with use KOKON Stereo Mirror Viewer (https://www.kokon.co.jp/book/b166146.html).

About

Flash!!:次世代の英単語帳アプリ

Features
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単語を集めて、整理して、問題を作る—— そんな面倒な作業は、すべて Flash!! に任せてください。 作成した英単語帳は、すぐにテスト形式で学習可能。 「作る → 覚える → 試す」を一つの流れで完結させ、 学習のテンポを途切れさせません。 面倒な準備に時間を取られることなく、 あなたは“覚えること”だけに集中できます。

Screenshots

AirPhotoView4 screens
Flash!!:次世代の英単語帳アプリ4 screens

Verdict

The call

The clearest difference is ads: AirPhotoView at none against Flash!!:次世代の英単語帳アプリ's shown. Flash!!:次世代の英単語帳アプリ's advantage is update cadence (weekly vs monthly). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AirPhotoView ships an update monthly, Flash!!:次世代の英単語帳アプリ weekly. The most recent releases landed on September 16, 2026 and August 22, 2026 respectively.

Scorecard2 real differences · 4 level
AirPhotoView versus Flash!!:次世代の英単語帳アプリ: the parameters behind the verdict, then further details
ParameterAirPhotoViewFlash!!:次世代の英単語帳アプリ
PriceFreeFree
Update frequencyMonthlyWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS18.517 — better
Further details — not scored
Size3 MB15 MB
Age rating4+17+
DeveloperRESEARCH CENTER FOR REGIONAL DISASTER MANAGEMENT, IWATE UNIVERSITYitsuki hotta

In-app purchases

None

AirPhotoView

No in-app purchases

None

Flash!!:次世代の英単語帳アプリ

No in-app purchases

Questions

Is AirPhotoView free?
AirPhotoView is free to download, with no in-app purchases.
Is Flash!!:次世代の英単語帳アプリ free?
Flash!!:次世代の英単語帳アプリ is free to download, with no in-app purchases.
Do AirPhotoView or Flash!!:次世代の英単語帳アプリ have ads?
Flash!!:次世代の英単語帳アプリ shows ads; AirPhotoView does not.
Which is updated more often, AirPhotoView or Flash!!:次世代の英単語帳アプリ?
AirPhotoView ships an update monthly, and Flash!!:次世代の英単語帳アプリ weekly. Most recently, AirPhotoView was updated on September 16, 2026 and Flash!!:次世代の英単語帳アプリ on August 22, 2026.

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