Comparison

おっとっとスタンプメーカー vs Perspective Lab

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

Head to head
About

おっとっとスタンプメーカー

Features
Read full description

おっとっとスタンプメーカーは好きな写真でオリジナルスタンプが作れるアプリです。 スタンプはLINEなどのSNSにワンタッチで送れ、とっても便利。 さらに、おっとっとを買うとスペシャルフレームがもらえる特典も! [使い方] 1.アプリを起動させてスタンプにしたい写真を選択 2.次に好きなフレームを選択。おっとっとを買うと「とと丸くんフレーム」など全16種類のスペシャルフレームがゲットできます。 3.スタンプはLINEなどのSNSにワンタッチで送れます。保存もできるので、いつでも好きな時に使うこともできます。

About

Perspective Lab

Features
Read full description

Perspective Lab is a geometry correction app that does not let AI change the content of your photos. Fix distortion, not your photo. Correct tilt, perspective, and keystone distortion in architecture, interiors, documents, artwork, and more—only as much as you choose. Processing stays on your device, and your original photo is never overwritten. Features • Smart Auto: Applies a natural correction only when the result is reliable • Quick Level: Straighten a photo in seconds • Manual controls: Fine-tune tilt, verticals, horizontals, aspect ratio, and scale • Guides: Place reference lines to correct buildings, horizons, and other straight edges • Press and hold to compare before and after • Save at original resolution • Privacy-focused: Photos are processed on your device and originals remain unchanged Try Pro features free for 7 days. The trial does not renew automatically.

Screenshots

おっとっとスタンプメーカー4 screens
Perspective Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: おっとっとスタンプメーカー at none against Perspective Lab's 2. おっとっとスタンプメーカー also leads on iOS requirement (8.0 vs 17.0). Perspective Lab's advantage is update cadence (weekly vs every 4 weeks). On price, ads 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. Perspective Lab sells 2 one-off in-app purchases. おっとっとスタンプメーカー asks for nothing beyond the download.

UpkeepUpdate frequency

おっとっとスタンプメーカー ships an update every 4 weeks, Perspective Lab weekly. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 4 level
おっとっとスタンプメーカー versus Perspective Lab: the parameters behind the verdict, then further details
ParameterおっとっとスタンプメーカーPerspective Lab
PriceFreeFree
Positive reviews33.3% of reviews—
Update frequencyEvery 4 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPod — betteriPhone
Requires iOS8.0 — better17.0
Further details — not scored
Size28 MB1 MB
Age rating4+4+
DeveloperMORINAGA&CO.,LTD.TAKESHI TOMIOKA

In-app purchases

None

おっとっとスタンプメーカー

No in-app purchases

2 purchases

Perspective Lab

One-time2
  • 7-Day Free TrialFree
  • Pro Lifetime$5.99

Questions

Is おっとっとスタンプメーカー free?
おっとっとスタンプメーカー is free to download, with no in-app purchases.
Is Perspective Lab free?
Perspective Lab is free to download, with in-app purchases available.
Do おっとっとスタンプメーカー or Perspective Lab have ads?
Neither おっとっとスタンプメーカー nor Perspective Lab shows ads.
Which is updated more often, おっとっとスタンプメーカー or Perspective Lab?
おっとっとスタンプメーカー ships an update every 4 weeks, and Perspective Lab weekly. Most recently, おっとっとスタンプメーカー was updated on November 2, 2026 and Perspective Lab on October 25, 2026.

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