DUCKTEM vs ScentSignal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DUCKTEM
A campus-exclusive marketplace app for university students to discover and exchange items, housing, and resources. Connect with peers in a secure, localized environment for offline transactions and community building.
- Campus-only community access
- Item listings and exchanges
- Student-to-student messaging
- Housing and sublease posts
- Offline transaction facilitation
- In-app safety guidelines
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Ducktem is a campus-based community app designed for university students. Explore items, housing options, and campus resources shared by students within your school. Ducktem helps students connect and trade in a safer, more localized environment. Key Features: - Campus-only community access - Item listings and exchanges - Student-to-student messaging - Housing and short-term sublease posts - Simple and intuitive interface Users can browse the app as a guest without signing in. A preview experience is available for exploration, while full access to listings, local deals, and interactive features requires sign-in. Ducktem does not process any online payments. All transactions and exchanges are conducted offline between users. To promote a safer community experience, Ducktem provides in-app guidelines and safety recommendations, including best practices for in-person transactions and housing arrangements. Users are encouraged to review these guidelines directly within the app.
ScentSignal
This app tracks real-world selling prices for fragrances on the secondary market, including full bottles, partials, and decants. It helps users determine fair prices for buying or selling and allows for price alerts and collection tracking.
- Track secondary market fragrance prices
- Estimate market value based on real listings
- Set price alerts for desired fragrances
- Discover deals below market estimate
- Manage and share fragrance collection
- Browse by fragrance house and perfumer
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ScentSignal tracks what fragrances actually sell for on the secondary market — full bottles, partial bottles, and decants from community resale listings — so you know a fair price before you buy or sell. FIND THE REAL PRICE Search almost any fragrance and see its market value estimate, adjusted for bottle size and fill level. Prices come from real listings, not retail sticker prices — and improved search helps you find the exact bottle you mean. GET ALERTED WHEN YOUR PRICE HITS Set a target price on a fragrance you're hunting and get a push notification when a matching listing shows up. Or watch for any new listing of a hard-to-find bottle. CATCH DEALS Browse listings priced below their market estimate, updated throughout the day. TRACK YOUR COLLECTION Keep shelves of what you own, want, and have tried. Add multiple bottles, sizes, and fill levels — even custom bottles — for a truer estimate of what your collection is worth, on a shareable collection page. EXPLORE EVERY FRAGRANCE A redesigned fragrance page brings prices, notes, and accords together in one place. Vote on accords and Scent DNA dimensions, leave ratings and reviews, and see how the community really experiences a scent — not just marketing copy. BUILT WITH THE COMMUNITY Spot something wrong or missing? Suggest updates and corrections right from the app. ScentSignal's catalog is constantly corrected and expanded by the people who use it. SUPPORT WITH PLUS ScentSignal is free and always ad-free — no ads, ever. Plus is for anyone who wants to back the mission: your support helps keep it that way and funds independent, honest price data, built for the hobby, not off it. ScentSignal is built for the fragrance hobby: decant buyers, bottle flippers, collectors, and anyone who wants to enjoy fragrance without overpaying. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: DUCKTEM at none against ScentSignal's 2. DUCKTEM also leads on update cadence (every 3 days vs fortnightly) and device support (3 vs 1). ScentSignal's advantage is ratings volume (28 vs 3). On price, rating, ads and monetization model 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. ScentSignal sells 2 in-app purchases, starting at $13.99 per 3 months. DUCKTEM asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for DUCKTEM against 4.9 for ScentSignal. That said, the two scores are not equally well evidenced: ScentSignal has 28 ratings behind it against 3, so its average is the more settled of the two.
DUCKTEM ships an update every 3 days, ScentSignal fortnightly. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | DUCKTEM | ScentSignal |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.9 (28 ratings) |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | 3 | 28 — better |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 16.4 |
| Further details — not scored | ||
| Size | 35 MB | 56 MB |
| Age rating | 12+ | 4+ |
| Developer | Ducktem LLC | Forest Lane Labs |
Customer experience
DUCKTEM
ScentSignal
In-app purchases
DUCKTEM
No in-app purchases
ScentSignal
- ScentSignal+ Quarterly7 Days trial$13.993 Months
- ScentSignal+ Yearly7 Days trial$34.991 Year









