Comparison

Comp World vs StampWorth

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

Head to head
About

Comp World

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Welcome to Comp World — the all-in-one app for dance, music, speech, and drama competitions. Whether you're a solo performer, part of a group, or managing multiple competitors, Comp World makes it easy to find events, register, and stay on top of everything from entry to results. Discover & Enter - Browse upcoming competitions near you - Register for multiple sections in just a few taps - Pay securely with card or Afterpay - Apply discount codes and manage waitlists Prepare & Perform - Upload performance audio and sheet music — or reuse songs from previous competitions - Manage duo, trio, and group entries with partner and participant details - Check in to your sections and track your schedule on the day Stay in the Loop - Follow live competition schedules with real-time updates - Receive notifications when schedules are published or entries change - Download invoices and track your payment history Review Your Results - View detailed report sheets with scores, placements, and adjudicator feedback - Listen to audio critiques and download written reports - See special awards and weighted scoring breakdowns Manage Your Profiles - Create solo or group competitor profiles with photos - Track entries, tasks, and waivers across multiple competitions - Keep emergency contact details up to date Built for competitors, parents, and teachers. Download Comp World and take the stress out of competition day.

About

StampWorth

Instantly appraise the value of your stamps using AI. Snap a photo to identify stamps, estimate market value, and check live eBay prices. Track your collection's worth over time.

Highlights
  • AI-powered stamp identification
  • Estimated market value
  • Live eBay price checks
  • Condition and rarity grading
  • Scan full album pages (Pro)
  • Track collection worth
  • Manual stamp logging
Features
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Know what your stamps are really worth. StampWorth turns your phone into an instant stamp appraiser. Snap a photo of any stamp and AI identifies it and estimates its market value in seconds — whether you're a serious collector or you just inherited a box of old stamps and want to know what it's worth. WHY COLLECTORS TRUST STAMPWORTH • Real market valuations — based on condition, rarity and recent sales, not guesswork • Catalog-referenced — cross-checked against the catalogs collectors actually use (Scott, Michel, Stanley Gibbons) • Live eBay prices — see what collectors are paying right now, inside the app • Condition and rarity grading on every stamp KNOW WHAT TO INSURE, SELL, OR KEEP Inherited a collection? Get a clear picture of what everything is worth before you insure it, sell it, or pass it on. StampWorth values each stamp against real market data so you can decide with confidence. SCAN A WHOLE ALBUM AT ONCE Just inherited a binder? Photograph a full album page and StampWorth identifies and values every stamp in a single tap. (PRO) A COLLECTION THAT GROWS IN VALUE Every scan is saved and valued automatically. Track your entire collection and watch your total worth climb — always up to date. ADD RARE FINDS BY HAND Log any stamp manually with full details — free, forever. No AI needed. STAMPWORTH PRO Go unlimited with professional-grade valuations, condition grading, catalog references and live eBay market offers. Try 3 free scans a day, then upgrade to StampWorth Pro for unlimited valuations. Weekly, monthly and yearly plans — cancel anytime. From a lifetime collection to a single lucky find, StampWorth tells you what it's worth. — SUBSCRIPTION & LEGAL StampWorth Pro is an auto-renewable subscription. Payment is charged to your Apple Account at confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://stampworth.web.app/privacy

Screenshots

Comp World4 screens
StampWorth4 screens

Verdict

The call

The clearest difference is update cadence: StampWorth at every 2 days against Comp World's weekly. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Comp World ships an update weekly, StampWorth every 2 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 8 level
Comp World versus StampWorth: the parameters behind the verdict, then further details
ParameterComp WorldStampWorth
PriceFreeFree
Rating—2.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size73 MB32 MB
Age rating4+4+
DeveloperNexus SolutionsTung Tran Thanh

In-app purchases

None

Comp World

No in-app purchases

None

StampWorth

No in-app purchases

Questions

Is Comp World free?
Comp World is free to download, with no in-app purchases.
Is StampWorth free?
StampWorth is free to download, with no in-app purchases.
Do Comp World or StampWorth have ads?
Neither Comp World nor StampWorth shows ads.
Which is updated more often, Comp World or StampWorth?
Comp World ships an update weekly, and StampWorth every 2 days. Most recently, Comp World was updated on October 7, 2026 and StampWorth on October 14, 2026.

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