Contour Detection vs MaLaTang
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Contour Detection
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Detects the contours of the edges of an image.
MaLaTang
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Save the pictures on the web page and encrypt the access.
Screenshots
Verdict
The clearest difference is update cadence: Contour Detection at fortnightly against MaLaTang's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Contour Detection ships an update fortnightly, MaLaTang every 3 months. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.
| Parameter | Contour Detection | MaLaTang |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly โ better | Every 3 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 17.7.2 | 17.6 โ better |
| Further details โ not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | ้ต้ต ๆฒ |
In-app purchases
Contour Detection
No in-app purchases
MaLaTang
No in-app purchases
Questions
Is Contour Detection free?
Is MaLaTang free?
Do Contour Detection or MaLaTang have ads?
Which is updated more often, Contour Detection or MaLaTang?
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