Comparison

Teorem vs WhenToCop?

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

Head to head
About

Teorem

Buy and sell pre-loved clothing and accessories from a community of fashion enthusiasts. Discover unique pieces to refresh your wardrobe affordably and sustainably. Join a network focused on second-hand fashion.

Highlights
  • Sell pre-owned clothing and accessories
  • Discover unique fashion items
  • Personalizable seller space
  • Moderated service to prevent scams
  • Subscription for unlimited listings
  • Monthly boosters and photo uploads
Features
Read full description

Teorem est l’application sur laquelle vous pouvez vendre les vêtements que vous ne portez plus et trouver les pépites dont vous rêviez tant! Vendez et achetez des vêtements et accessoires de seconde-main. Téléchargez TEOREM et trouvez la perle-rare qui mettra le feu à votre dressing! Renouvellez sans cesse votre style à moindre coût parmi un réseau de passionnés de mode. Qui n'a jamais rêvé de pouvoir changer régulièrement sa garde-robe? Teorem, l'essentiel de la mode seconde main et Suisse en quelques clics. Ce que vous propose TEOREM: - Un espace personnalisable pour vendre vos vêtements et accessoires - Un grand choix d’articles d’occasion proposé par des particuliers ou des boutiques sélectionnées - Un service de modération géré par Teorem pour vous protéger d’éventuelles arnaques ou contrefaçons - Service d'abonnement Apple: Nom du service: Abonnement Les fonds seront déduits de votre compte iTunes une fois confirmé. L'abonnement est renouvelé chaque mois, sauf si vous l'annulez au moins 24 heures avant la fin de l'abonnement. Le prix de cet abonnement est de 7 CHF. Avec cet abonnement, vous avez: Annonces illimitées en ligne Maximum 15 photos par annonce 4 boosters offerts par mois Rejoignez vite la communauté de Teorem et restez informés des dernières ventes! A très vite, La Team Teorem

About

WhenToCop?

Find the best deals on sneakers and streetwear with a price comparator, release calendar, and promotions page. Get recommendations, set alerts for new drops and restocks, and access direct links to verified partners. Join a community of over a million users to discover your next favorite items.

Highlights
  • Price comparison for sneakers and streetwear
  • Curated recommendations and powerful search filters
  • Centralized promotions page with deal details
  • Upcoming and past release calendar
  • Direct links to verified partner websites
  • Customizable alerts for releases, restocks, and offers
Features
Read full description

WHY USE WHENTOCOP? WhenToCop? is the leading app for finding sneakers and streetwear items at the best prices. It's completely free and trusted by over 1,000,000 users, join our community today ! HOW DOES WHENTOCOP? HELP YOU FIND YOUR NEXT SNEAKERS/STREETWEAR ? 1/ Sneakers/streetwear price comparator Fed up with browsing endless websites without finding the best deals ? Those days are over. Our price comparison tool connects directly to more than 70 verified partners (Nike, adidas, New Balance, Uniqlo, Carhartt, SNS...), ensuring you'll find your next sneakers or streetwear piece at the best price, securely and with just a few clicks. 2/ Research and recommendations Need inspiration for your next purchase ? We've got you covered with our recommendations and search page. Our recommendations showcase trending items and styles that match your taste. With powerful filters on the search page, you can narrow down your options until you find the perfect product. 3/ Sneakers/streetwear promotions page Find all current sneaker and streetwear promotions in one convenient place. During sales events and Black Friday, you'll easily discover which sites are offering special deals on our promotions page. We provide essential details like delivery times, free shipping options, and payment plans, with one-click access to each brand's website. Simple and effective. 4/ Sneakers/streetwear release calendar We list all upcoming and past sneaker and streetwear releases in a clean, modern interface. Looking for the hottest upcoming drops ? Want to stay informed about future releases ? You'll find everything in our release calendar. With multiple daily updates, you'll never miss a beat. 5/ Direct links to sneaker/streetwear releases To complement the calendar and ensure you have all the tools you need, we provide a list of verified partners for each product release. With just one click, you'll be securely redirected to the website to purchase your sneakers or streetwear item. 6/ Alerts Never miss a release, restock, or special offer. We'll notify you instantly when something exciting drops. Create custom alerts for specific shoes in your size to stay updated on new arrivals and promotions. Best of all, you have complete control over your notifications through the app's alert management settings. HOW CAN YOU BENEFIT FROM WHENTOCOP? WhenToCop? is a mobile application and a website. We're available everywhere and you can even find us on social networks ! A PROBLEM WITH THE APP OR ANYTHING ELSE? While we strive to maintain excellent service, if you experience any issues or bugs, please contact our support team at the following email address: [help@whentocop.fr](mailto:help@whentocop.fr) Join our community today and discover your next sneakers or streetwear pieces at unbeatable prices, with complete peace of mind. https://www.whentocop.com/cgu Privacy Policy: https://www.whentocop.com/privacy-policy

Screenshots

Teorem4 screens
WhenToCop?4 screens

Verdict

The call

The clearest difference is rating: Teorem at 5.0 against WhenToCop?'s 4.5. Teorem also leads on iOS requirement (12.0 vs 16.0). WhenToCop?'s advantage is review sentiment (93% vs 75%) and ratings volume (16 vs 1). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Teorem sells 4 in-app purchases, starting at $6.49 per month and WhenToCop? sells 1 in-app purchase, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Teorem holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: WhenToCop? has 16 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 75% of Teorem's written reviews are positive against 93% of WhenToCop?'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
Teorem versus WhenToCop?: the parameters behind the verdict, then further details
ParameterTeoremWhenToCop?
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (16 ratings)
Positive reviews75.0% of reviews93.3% of reviews — better
Number of ratings116 — better
Update frequencyMonthlyMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size46 MB118 MB
Age rating4+4+
DeveloperCharlotte HenryWHENTOCOP

Customer experience

Teorem

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

WhenToCop?

All ratings16 ratings
Positive93.8%
Neutral0.0%
Negative6.3%
Written reviews90 reviews
Positive93.3%
Neutral4.4%
Negative2.2%

In-app purchases

4 purchases

Teorem

Subscriptions1
  • Subscription$6.491 Month
One-time3
  • Booster Ad$0.99
  • Hits of the Week$4.99
  • Hits of the Week$9.99
1 purchases

WhenToCop?

Subscriptions1
  • Premium WhenToCop?$12.991 Month

Questions

Is Teorem free?
Teorem is free to download, with in-app purchases available.
Is WhenToCop? free?
WhenToCop? is free to download, with in-app purchases available.
Which has better reviews, Teorem or WhenToCop??
Teorem is rated higher. Teorem averages 5.0 out of 5 from 1 ratings, while WhenToCop? averages 4.5 from 16 ratings.
Do Teorem or WhenToCop? have ads?
Neither Teorem nor WhenToCop? shows ads.
Which is updated more often, Teorem or WhenToCop??
Teorem ships an update monthly, and WhenToCop? monthly. Most recently, Teorem was updated on September 21, 2026 and WhenToCop? on September 23, 2026.

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