Comparison

KobCard vs Opus

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

Head to head
About

KobCard

This app serves as a comprehensive platform for gift card information. It offers real-time exchange rates, price calculations, and the latest news related to gift cards, assisting users in buying, selling, or staying informed.

Highlights
  • Real-time gift card exchange rates
  • Gift card price calculation
  • Latest gift card news updates
  • Information for buying and selling gift cards
Features
Read full description

Your Ultimate Gift Card Information Hub Discover everything about gift cards on KobCard!  We provide real-time exchange rates for all gift cards, help you calculate their prices, and keep you updated with the latest gift card news.  Whether you're buying, selling, or just staying informed, KobCard is your go-to platform for all things gift cards.

About

Opus

Features
Read full description

Focus. Unlock a masterpiece. Opus is a free, unlimited Pomodoro focus timer that turns completed sessions into a museum of your own. Finish a focus session to unlock the next artwork in a curated journey — a public-domain masterpiece from The Metropolitan Museum of Art or the Cleveland Museum of Art, accompanied by a short museum-style story. FOCUS, THEN DISCOVER Start a session, stay with your work, and leave with something worth keeping. Every completed focus session reveals the next artwork in your journey. The sequence is curated, so your museum grows with purpose rather than at random. CHOOSE YOUR JOURNEY Begin as The Explorer with 15 artworks across 3 wings. Continue as The Curator with 30 artworks across 5 wings, or become The Master Collector with 60 artworks across 8 wings. Watch each room fill as your focus practice grows. THE TIMER IS FREE — ALWAYS Focus without session limits, locked breaks, ads, or a countdown to a paywall. Choose the rhythm that fits your day: • Classic — 25/5/15 • Ultra Focus — 50/10/20 • Quick Study — 15/3/10 A long break begins automatically after four completed sessions. YOUR MUSEUM Explore unlocked artworks room by room, mark favorites, and read the story behind every piece. Artworks you have not reached remain hidden as silhouettes, so every unlock stays a discovery. TASKS, STREAKS & FOCUS HISTORY Add what you are working on, connect it to a focus session, and see where your time went. Follow your streaks, weekly and monthly charts, and a full year of focus history. QUIET BY DESIGN Warm light and dark themes, a distraction-free Zen Mode, optional completion sounds, and a notification when time is up. No feed. No ads. No noise. FREE & OPUS PRO The unlimited focus timer, tasks, statistics, the Museum, and The Explorer's first wing with 5 artworks are free. Opus Pro unlocks the rest of The Explorer and the complete Curator and Master Collector journeys. PRIVACY No account or sign-up is required. Your sessions, tasks, and collection stay on your device, with full backup export and import. Opus uses anonymous, aggregated usage analytics to improve the experience. Artwork images are delivered from the museums' open-access services, so discovering a new piece requires an internet connection. App languages: English, Turkish, Spanish, German, and French — including artwork stories. Start your next focus session. Leave with a masterpiece. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tugrul.works/projects/opus/privacy-policy

Screenshots

KobCard4 screens
Opus4 screens

Verdict

The call

The clearest difference is in-app purchases: KobCard at none against Opus's 6. KobCard also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (12.0 vs 15.1). On price, ads and device support 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. Opus sells 6 in-app purchases, starting at $4.99 per month. KobCard asks for nothing beyond the download.

UpkeepUpdate frequency

KobCard ships an update every 3 weeks, Opus every 6 months. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

Scorecard3 real differences · 7 level
KobCard versus Opus: the parameters behind the verdict, then further details
ParameterKobCardOpus
PriceFreeFree
Rating4.0 (62 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings62 — better—
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.1
Further details — not scored
Size44 MB57 MB
Age rating17+4+
DeveloperKOB MARKETINGTugrul Erdem Dogru

In-app purchases

None

KobCard

No in-app purchases

6 purchases

Opus

Subscriptions2
  • Collector Edition (Monthly)7 Days trial$4.991 Month
  • Collector Edition (Yearly)7 Days trial$19.991 Year
One-time4
  • American Realism$2.99
  • Surrealism$2.99
  • Abstract Art$2.99
Show 1 more
  • Opus Pro: Collector Lifetime$29.99

Questions

Is KobCard free?
KobCard is free to download, with no in-app purchases.
Is Opus free?
Opus is free to download, with in-app purchases available.
Do KobCard or Opus have ads?
Neither KobCard nor Opus shows ads.
Which is updated more often, KobCard or Opus?
KobCard ships an update every 3 weeks, and Opus every 6 months. Most recently, KobCard was updated on September 19, 2026 and Opus on September 9, 2026.

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