Comparison

Offline Cards vs KeyStacker

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

Head to head
About

Offline Cards

This app is a lightning-fast, 100% offline digital wallet for all your loyalty and store cards. It offers zero registration, ad-free usage, and local data storage for maximum privacy and instant access at checkout.

Highlights
  • 100% Offline card storage
  • Zero registration required
  • Ad-free and free forever
  • Universal barcode scanner support
  • Local backup and restore
  • Apple Wallet integration
  • Home screen widgets
Features
Read full description

The lightning-fast wallet for all your loyalty cards. 100% offline, no registration, no ads, no subscription. End the chaos at the checkout. Offline Cards is the minimalist, privacy-first digital wallet for all your loyalty cards, store cards, reward points, and membership IDs. Your barcodes are stored locally on your device — always instant, always private. WHY OFFLINE CARDS? 100% Offline: No signal at the store? No problem. Every store card and barcode is stored locally and opens with a single tap. No loading. No waiting. No holding up the line. Zero Registration: No account. No email. No cloud. Your data never leaves your device. We collect nothing and track nothing. Ad-Free & Free Forever: No pop-ups, no premium tiers, no paywall. Everything is free. Auto-Brightness: Screen brightness automatically increases the moment you open a card — so your barcode scans perfectly every time. CORE FEATURES: Universal Scanner: Supports EAN, QR, Code-128, Aztec, PDF417 and more. Works with virtually every loyalty card and membership ID. Local Backup & Restore: Export your entire wallet as a local file and import it on any device. No cloud needed. Card Sharing via Deep Link: Share individual cards with family directly — no cloud, no account required. Custom Logos & Card Photos: Upload your own store logos or photos of your physical cards for easy identification. Apple Wallet Integration: Export supported cards to Apple Wallet with one tap. Home Screen Widgets (iOS 18 optimized): Add your most-used cards directly to your home screen. Tap once — barcode ready. Easy Import: Switch from other apps by scanning barcodes via camera or importing screenshots. Light & Dark Mode: Clean, minimal design that adapts to your iPhone. HOW IT WORKS: 1. Scan your card. 2. Choose a logo. 3. Show it at the register and collect your points. Works with all major US loyalty cards: CVS ExtraCare, Walgreens myWalgreens, Target Circle, Kroger Plus, Safeway Club Card, Albertsons for U, Costco, and hundreds more. Download Offline Cards free — the fastest loyalty card wallet on the App Store.

About

KeyStacker

Consolidate all your loyalty cards, membership passes, and gym cards into a single digital wallet. Scan barcodes and QR codes instantly for offline access, with options to tag, favorite, and add notes for easy organization. Your data remains private and stored locally on your device.

Highlights
  • Store unlimited loyalty and membership cards
  • Scan QR codes and barcodes
  • Works 100% offline
  • Local-only storage with Face ID lock
  • Full-screen mode with brightness boost
  • Tagging, favorites, and notes
  • Backup and restore functionality
Features
Read full description

Stack your cards, ditch the clutter. Key Stacker turns your phone into a single, tidy wallet for every loyalty card, membership, gym pass, and library card you carry. Snap the barcode once and it's ready whenever you need it — no account, no sign-up, no internet Add cards in seconds Point your camera at any barcode or QR code and Key Stacker captures instantly. Supports all the common formats — QR, PDF417, Aztec, Data Code 128/39/93, Codabar, EAN, UPC, and more — so if a store can scan it, you can stack it. Built to scan Open a card and Key Stacker jumps to full brightness and shows the code big and crisp. Pinch to resize it, rotate wide barcodes to fill the screen, let any reader pick it up on the first try. Each card remembers your preferred size. Stay organized Tag your cards, mark favorites, and search or filter to find the right fast. Add notes, pick an accent color, and snap photos of the physical card for reference. Yours and private Everything lives on your device. Lock the app behind Face ID, hide it from the app switcher, and back up or restore your whole wallet with a single shareable file. Key Features - Store unlimited loyalty, rewards, and membership cards - Scan QR codes and barcodes in 10+ formats - Works 100% offline — no account, no signup - Local-only storage with Face ID lock - Full-screen mode with brightness boost for reliable scanning - Tags, favorites, and notes - Backup and restore No ads. Just your cards, ready when you are. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gist.github.com/dinitiatives/d818654ad0c96fa9d76358da7731e115#file-key-stacker-privacy-md

Screenshots

Offline Cards4 screens
KeyStacker4 screens

Verdict

The call

The clearest difference is in-app purchases: Offline Cards at none against KeyStacker's 2. Offline Cards also leads on ratings volume (31 vs 1). KeyStacker's advantage is update cadence (every 4 days vs every 3 weeks). On price, rating, 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. KeyStacker sells 2 in-app purchases, starting at $2.99 per month. Offline Cards asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Offline Cards against 5.0 for KeyStacker. That said, the two scores are not equally well evidenced: Offline Cards has 31 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Offline Cards ships an update every 3 weeks, KeyStacker every 4 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Offline Cards versus KeyStacker: the parameters behind the verdict, then further details
ParameterOffline CardsKeyStacker
PriceFreeFree
Rating4.9 (31 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings31 — better1
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size30 MB52 MB
Age rating4+4+
DeveloperSebastian SieberDidactic Initiatives LLC

Customer experience

Offline Cards

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KeyStacker

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Offline Cards

No in-app purchases

2 purchases

KeyStacker

Subscriptions2
  • Key Stacker Pro (Monthly)$2.991 Month
  • Key Stacker Pro (Annual)7 Days trial$24.991 Year

Questions

Is Offline Cards free?
Offline Cards is free to download, with no in-app purchases.
Is KeyStacker free?
KeyStacker is free to download, with in-app purchases available.
Which has better reviews, Offline Cards or KeyStacker?
KeyStacker is rated higher. Offline Cards averages 4.9 out of 5 from 31 ratings, while KeyStacker averages 5.0 from 1 ratings.
Do Offline Cards or KeyStacker have ads?
Neither Offline Cards nor KeyStacker shows ads.
Which is updated more often, Offline Cards or KeyStacker?
Offline Cards ships an update every 3 weeks, and KeyStacker every 4 days. Most recently, Offline Cards was updated on October 24, 2026 and KeyStacker on October 29, 2026.

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