Comparison

OffCenter vs Rectifi

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

Head to head
About

OffCenter

This utility app allows users to scan trading cards and determine their centering. It provides a grading estimation and helps users save their card data.

Highlights
  • Scan trading cards
  • Center card analysis
  • Grading estimation
  • Card data saving
  • Intuitive interface
Read full description

Scan. Center. Grade. Save.

About

Rectifi

Scan trading cards to accurately assess centering against industry standards like PSA, BGS, and CGC. Features automatic perspective correction for precise measurements, even from awkward angles. Offers guided corner placement and detailed analysis for various card types.

Highlights
  • Automatic perspective correction
  • Centering analysis for PSA, BGS, CGC
  • Guided corner placement
  • Automatic card detection
  • Standard and Pro scan modes
  • Scan history and comparison
Read full description

Don't get burned on bad centering. Scan your card against PSA, BGS, and CGC centering standards in seconds, even from an awkward angle. Free. No ads. No account needed. BUILT FOR TRADING CARDS WITH AUTOMATIC PERSPECTIVE CORRECTION Other apps need a perfectly flat photo. Rectifi doesn't. Our app straightens your photo before measuring, so your ratios are accurate no matter how you hold your phone. Watch the perspective correction happen in real time. Built for trading cards, Rectifi detects cards automatically, even on busy backgrounds. HOW IT WORKS 1. Snap a photo or import from your library 2. Place your card's corners one at a time 3. Perspective correction kicks in automatically 4. Get centering ratios and grade qualifications for PSA, BGS, and CGC. Toggle between front and back with a tap. GUIDED MODE: PLACE CORNERS WITH CONFIDENCE Rectifi walks you through corner placement one corner at a time. The screen zooms into each corner so you can line it up precisely before confirming. An on-device detector places every corner for you first, so most of the time a small adjustment is all it takes. Prefer placing all four corners at once? Switch to Manual mode anytime in Settings. INTERACTIVE DEMO Not sure how it works? Walk through an interactive demo with a real card. See corner placement, border adjustment, and full results. No account needed. A NOTE ON "PRO SCANS" A Pro Scan is a perspective-corrected scan. The free tier gives you 5 every week, a shared pool you can spend all in one sitting, so you can check several cards without getting stopped on the second one. New here? You also get 3 welcome-bonus Pro Scans that flow right into your first week's pool. Standard scans are always unlimited and free. Go unlimited on Pro Scans with Rectifi Pro. FREE FEATURES • Unlimited standard scans with centering analysis • 5 perspective-corrected Pro Scans every week, a pooled allowance you can spend all at once • Works with Pokémon, Magic, sports cards, and all other standard-sized cards • Grade qualifications for PSA, BGS, and CGC • Guided Mode: place corners one at a time in a zoomed-in viewport • Smart Capture: fires automatically when your card is stable and in focus • Automatic card detection and cropping • Level-guided capture for accurate flat photos • Offset handles keep your finger out of the way when placing corners • Slow-drag precision mode when zoomed in for sub-pixel accuracy • Share your scan results with a public link PRO FEATURES • Unlimited Pro Scans with perspective correction • Cloud-synced scan history across devices • Exact ratios and grade qualifications for every past scan • Side-by-side comparison to find the better card • Fullscreen zoom and pan on scan images • Border re-adjustment on saved scans without rescanning Stop second-guessing. Never get burned on centering again.

Screenshots

OffCenter4 screens
Rectifi4 screens

Verdict

The call

The clearest difference is rating: Rectifi at 5.0 against OffCenter's 4.4. Rectifi also leads on review sentiment (100% vs 83%) and ratings volume (23 vs 7). OffCenter's advantage is in-app purchases (none vs 1) and iOS requirement (15.1 vs 18.0). On price, update cadence, 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. Rectifi sells 1 in-app purchase, starting at $7.99 per month. OffCenter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rectifi holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 23 respectively. Written reviews point the same way: 83% of OffCenter's written reviews are positive against 100% of Rectifi's.

UpkeepUpdate frequency

OffCenter ships an update fortnightly, Rectifi every 11 days. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
OffCenter versus Rectifi: the parameters behind the verdict, then further details
ParameterOffCenterRectifi
PriceFreeFree
Rating4.4 (7 ratings)5.0 (23 ratings) — better
Positive reviews83.3% of reviews100.0% of reviews — better
Number of ratings723 — better
Update frequencyFortnightlyEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size26 MB53 MB
Age rating4+4+
DeveloperSamuel ChoiEchan Ventures, LLC

Customer experience

OffCenter

All ratings6 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Rectifi

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OffCenter

No in-app purchases

1 purchases

Rectifi

Subscriptions1
  • Rectifi Pro Monthly1 Month trial$7.991 Month

Questions

Is OffCenter free?
OffCenter is free to download, with no in-app purchases.
Is Rectifi free?
Rectifi is free to download, with in-app purchases available.
Which has better reviews, OffCenter or Rectifi?
Rectifi is rated higher. OffCenter averages 4.4 out of 5 from 7 ratings, while Rectifi averages 5.0 from 23 ratings.
Do OffCenter or Rectifi have ads?
Neither OffCenter nor Rectifi shows ads.
Which is updated more often, OffCenter or Rectifi?
OffCenter ships an update fortnightly, and Rectifi every 11 days. Most recently, OffCenter was updated on October 24, 2026 and Rectifi on October 24, 2026.

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