Reiwa Widget vs Contour Detection
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reiwa Widget
This utility app displays the current Japanese era directly on your device's notification center. It provides a quick and easy way to reference the Japanese calendar system.
- Japanese era display
- Notification Center integration
- Quick reference
- Japanese calendar
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Reiwa Widget displays Japanese Period on Notification Center.
Contour Detection
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Detects the contours of the edges of an image.
Screenshots
Verdict
The clearest difference is ads: Reiwa Widget at none against Contour Detection's shown. Reiwa Widget also leads on device support (3 vs 1) and iOS requirement (8.2 vs 17.7.2). Contour Detection's advantage is update cadence (fortnightly vs every 2 months). On price 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.
Reiwa Widget ships an update every 2 months, Contour Detection fortnightly. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | Reiwa Widget | Contour Detection |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.2 — better | 17.7.2 |
| Further details — not scored | ||
| Size | 52 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Airwire products. | Hideaki Uchikoshi |
In-app purchases
Reiwa Widget
No in-app purchases
Contour Detection
No in-app purchases
Questions
Is Reiwa Widget free?
Is Contour Detection free?
Do Reiwa Widget or Contour Detection have ads?
Which is updated more often, Reiwa Widget or Contour Detection?
Other comparisons
