Comparison

BLACKCELL vs NimbleRead

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

Head to head
About

BLACKCELL

This app securely stores your passwords, documents, and notes locally on your device. It offers auto-fill for faster logins and password generation, keeping your digital life organized and protected without cloud dependency or tracking.

Highlights
  • Secure password storage
  • AutoFill for quick logins
  • Secure notes creation
  • Document and photo storage
  • Strong password generation
  • Organize with groups
  • Import from other managers
Features
Read full description

BLACKCELL Your Digital Life. Protected. Organized. Always Within Reach. Your digital life is more than passwords. It is the documents, photos, notes, and credentials you rely on every day. BLACKCELL is a local-first digital vault designed to reduce the friction of everyday digital life. It keeps your passwords, credentials, Secure Notes, and the photos and documents that belong with them together in one secure, organized place. With built-in AutoFill, BLACKCELL helps you sign in quickly and securely across your apps and websites. No account creation. No cloud dependency. No advertising. No tracking. Your information stays under your control. Designed for Everyday Life BLACKCELL helps you: • Secure passwords and login credentials • Sign in faster with AutoFill • Create and store Secure Notes • Store important documents and reference photos alongside the credentials they belong with • Generate strong passwords • Generate security questions • Organize everything with Groups • Import passwords from supported password managers Built Around Privacy Your information is stored locally on your device and protected with strong encryption. BLACKCELL does not require an account. BLACKCELL does not track your activity. BLACKCELL does not collect or sell your personal information. Your information remains yours. Peace of Mind by Design Your digital life shouldn't be scattered across apps, folders, and sticky notes. BLACKCELL brings everything together in one secure place, so the information you rely on every day is protected, organized, and always within reach. A Vanguard Sentry Product Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

NimbleRead

This app presents words one at a time, centered on the screen, to help you read faster and improve focus. It eliminates the need for scrolling and reduces eye strain, making it easier to consume long texts and books.

Highlights
  • Rapid Serial Visual Presentation (RSVP)
  • Zero scrolling and reduced eye strain
  • Import own PDFs, ePubs, and text files
  • Send articles from the web
  • Built-in free classic books and Wikipedia articles
  • Progress tracking and adjustable speed
  • Focus improvement for ADHD and dyslexia
Features
Read full description

Read More. Scroll Less. Do you have a huge stack of books you want to finish, or long documents you need to get through for work? Reading on a phone screen can quickly make your eyes tired, and it is incredibly easy for your mind to wander. Whether you want to read more books, improve your focus, try speed reading, or build a calm self-care routine, this Rapid Serial Visual Presentation app makes reading easy. Instead of forcing your eyes to scan back and forth across a page, we bring the words directly to you. Our reader flashes words on your screen one at a time, perfectly centered. Because your eyes stay in one place, you stop accidentally re-reading the same lines and you never have to scroll. You just look straight ahead and let the story flow. You will train your brain to lock in on the text. Over time, you will naturally cut out distractions, reduce eye strain, and comfortably double your reading speed. The app is designed for readers who find traditional pages overwhelming or distracting. By showing one word at a time in a clean, focused reading view, it may be helpful for people who have difficulty staying focused, including some readers with ADHD, dyslexia, or attention challenges. Adjustable reading speed, minimal visual clutter, and short daily sessions make it easier to start reading, keep momentum, and enjoy books without the distractions of a typical ebook page. RSVP speed reader app Cheetah is here for you. What You Can Do: Bring Your Own Reading: Easily open your own PDFs, ePubs, and text files right in the app. Send from the Web: Found a long article on your phone? Use the share button to send it to the app with just one tap so you can read it instantly. Free Books: Don't have a file ready? Dive into free classic books and Wikipedia articles built right in. Zero Scrolling: Give your thumb a rest. The words come to you, which means no more swiping and no screen fatigue. Track Your Progress: Start at a comfortable pace and slowly turn up the speed as your focus gets sharper. Stop letting long texts slow you down. Try a quick reading sprint today and see how much time you can save! The app uses Apple’s Standard Terms of Use (EULA). The EULA link and Privacy Policy link are included in the App Store description and are also available as tappable links on the subscription paywall. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.yeapdigital.co.uk/speed-reader-cheetah-privacy-policy/

Screenshots

BLACKCELL4 screens
NimbleRead4 screens

Verdict

The call

The clearest difference is rating: BLACKCELL at 5.0 against NimbleRead's 4.5. BLACKCELL also leads on ads (none vs shown). NimbleRead's advantage is update cadence (every 2 weeks vs monthly) and device support (3 vs 1). On price, ratings volume, in-app purchases and monetization model 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. BLACKCELL sells 2 in-app purchases, starting at $2.99 per month and NimbleRead sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BLACKCELL holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

BLACKCELL ships an update monthly, NimbleRead every 2 weeks. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 4 level
BLACKCELL versus NimbleRead: the parameters behind the verdict, then further details
ParameterBLACKCELLNimbleRead
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (2 ratings)
Number of ratings12 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size7 MB67 MB
Age rating4+4+
DeveloperHollis WynneYeap Digital

In-app purchases

2 purchases

BLACKCELL

Subscriptions2
  • BLACKCELL Monthly$2.991 Month
  • BLACKCELL Annual7 Days trial$29.991 Year
2 purchases

NimbleRead

Subscriptions2
  • Premium Monthly3 Days trial$6.991 Month
  • Premium Annual3 Days trial$39.991 Year

Questions

Is BLACKCELL free?
BLACKCELL is free to download, with in-app purchases available.
Is NimbleRead free?
NimbleRead is free to download, with in-app purchases available.
Which has better reviews, BLACKCELL or NimbleRead?
BLACKCELL is rated higher. BLACKCELL averages 5.0 out of 5 from 1 ratings, while NimbleRead averages 4.5 from 2 ratings.
Do BLACKCELL or NimbleRead have ads?
NimbleRead shows ads; BLACKCELL does not.
Which is updated more often, BLACKCELL or NimbleRead?
BLACKCELL ships an update monthly, and NimbleRead every 2 weeks. Most recently, BLACKCELL was updated on October 23, 2026 and NimbleRead on October 10, 2026.

Other comparisons