Comparison

GhostKey vs Flash Reader FR

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

Head to head
About

GhostKey

This app offers a unique, offline approach to password management by generating passwords based on your personal memories and photos. It prioritizes security, simplicity, and an enjoyable login experience, creating unique passwords for each site without storing any data.

Highlights
  • Offline operation, no data leaves device
  • Password generation from memories/photos
  • Unique password for each site
  • Visual Memento login
  • Automatic anti-phishing
  • Persona organization
Features
Read full description

“The memories I value most, I don’t ever see them fading.” ― Kazuo Ishiguro, Nobel Prize Winner GhostKey™ is the first password un-manager. It is built on the philosophy that we all have engraved memories, tastes, and preferences that are unique to us. They are more secure than our biometrics, which are not secrets in themselves. GhostKey™ provides three unique benefits over other password systems: security, simplicity, and enjoyment. Security: People used to memorize passwords or write them on a piece of paper. Current password managers convert that piece of paper into a digital form that needs to be protected, copied, and synchronized. GhostKey™ gets rid of that paper forever. It does not store any password or connect to any other machine. Instead, it computes passwords based on your memories, uses these to log you in, and then erases the computed passwords. Because of the unique way that GhostKey™ works, it isn't vulnerable to brute force attacks in the same way as other password managers. GhostKey™ don't validate the results, so If the wrong memento is entered the computed a password is wrong. Each password GhostKey™ generates has a 118-bit entropy, which takes 63 billion years to crack, and each application or website has a different password, making your security virtually unbreakable. Simplicity: GhostKey™ was designed to disappear. We’ve reduced the number of touches to the bare minimum, speeding up your login experience. Instead of inventing passwords, you use existing memories, which we call Flashbacks and Mementos. A Flashback is entered once per device, while a memento is entered every time you log in. Using a Visual Memento renders the login experience as fast as using biometrics. Enjoyment: GhostKey™ is designed to be enjoyable as well as fast and secure. You log in using a combination of your favorite memories and photos chosen from a gallery of 300 beautiful images. Instead of enduring frustrations and anxiety, you'll enjoy logging in and out, because each time you do you will be reliving your special experiences. GhostKey™ features include: • Totally offline operation: nothing leaves your device. • Beautiful photo-based login experience. • Automatic anti-phishing measures. • Personas™ to organize your accounts based on how you live your life. • Guaranteed unique password for each website and application. • Scramblers to create new passwords without changing your Memento. • Total freedom: you choose how you want to express your memories.

About

Flash Reader FR

Features
Read full description

Read faster with RSVP speed reading. Flash Reader FR uses Rapid Serial Visual Presentation (RSVP) to display words one at a time, eliminating eye movement and helping you read up to 3x faster without losing comprehension. IMPORT YOUR WAY Bring in content from EPUB, PDF, and Word (DOCX) documents, paste text directly, or fetch articles from any web URL. Large imports run in the background with progress tracking, so the app never freezes while you wait. READ YOUR WAY - Adjustable speed up to 1500 words per minute - Safe Ramp mode eases you into a session at a comfortable pace instead of jumping straight to full speed - Full-text view lets you read your document as normal scrollable text alongside RSVP mode, with your current position highlighted - Dark, Light, Sepia, and Night themes for comfortable reading in any lighting - Customizable blink breaks to reduce eye strain during long sessions STAY ORGANIZED - Multi-select and bulk delete documents from your library - Rename documents right from your library - Bookmark your place and search within any document - Track your reading stats, streaks, and history over time CHOOSE YOUR PLAN Flash Reader FR is free to start. Upgrade to Premium for full EPUB, PDF, and DOCX import, URL import, 1500 WPM speed, premium themes, blink break customization, and full statistics. Premium is available as a Monthly subscription, a Yearly subscription, or a one-time Lifetime purchase, whatever fits how you read. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GhostKey4 screens
Flash Reader FR4 screens

Verdict

The call

The clearest difference is ads: Flash Reader FR at none against GhostKey's shown. Flash Reader FR also leads on update cadence (daily vs every 2 months). GhostKey's advantage is iOS requirement (13.0 vs 17.0). On price, 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. GhostKey sells 2 in-app purchases, starting at $0.99 per month and Flash Reader FR sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

GhostKey ships an update every 2 months, Flash Reader FR daily. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 6 level
GhostKey versus Flash Reader FR: the parameters behind the verdict, then further details
ParameterGhostKeyFlash Reader FR
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 monthsDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size180 MB3 MB
Age rating4+4+
DeveloperRegwez, Inc.OTTO GUTIERREZ

In-app purchases

2 purchases

GhostKey

Subscriptions2
  • Monthly Subscription7 Days trial$0.991 Month
  • GhostKey Yearly subscription$7.991 Year
1 purchases

Flash Reader FR

One-time1
  • Flash Reader FR$6.99

Questions

Is GhostKey free?
GhostKey is free to download, with in-app purchases available.
Is Flash Reader FR free?
Flash Reader FR is free to download, with in-app purchases available.
Do GhostKey or Flash Reader FR have ads?
GhostKey shows ads; Flash Reader FR does not.
Which is updated more often, GhostKey or Flash Reader FR?
GhostKey ships an update every 2 months, and Flash Reader FR daily. Most recently, GhostKey was updated on October 13, 2026 and Flash Reader FR on October 8, 2026.

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