Contour Detection vs miniDSP BT Update
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Contour Detection
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Detects the contours of the edges of an image.
miniDSP BT Update
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This app allows user to pair with the bluetooth available in Flex / Flex DL / Flex8 / Flex8 DL devices and perform firmware upgrade of the bluetooth module inside the device.
Screenshots
Verdict
The clearest difference is ads: miniDSP BT Update at none against Contour Detection's shown. miniDSP BT Update also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.7.2). On price, update cadence and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Contour Detection ships an update fortnightly, miniDSP BT Update monthly. The most recent releases landed on October 15, 2026 and October 8, 2026 respectively.
| Parameter | Contour Detection | miniDSP BT Update |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.7.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | miniDSP Ltd |
In-app purchases
Contour Detection
No in-app purchases
miniDSP BT Update
No in-app purchases
Questions
Is Contour Detection free?
Is miniDSP BT Update free?
Do Contour Detection or miniDSP BT Update have ads?
Which is updated more often, Contour Detection or miniDSP BT Update?
Other comparisons
