Comparison

Korenga vs BlackBook

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

Head to head
About

Korenga

Features
Read full description

Secure Vault: Organize all the details and documents about your home in secure place Share detailed information with service providers so they come prepared the first time. Securely share access to Home Vault with others associated with your home. Hassle-free home management. DIY/Video: Connect with Service Providers who can assist you remotely via VIDEO to diagnose or fix your problem! Connect: Korenga is a new way to engage and connect with local service providers in your community for all your service requests. Korenga helps you find nearby, available, qualified, and trusted service providers. Request DIY via VIDEO, Get alerts when providers are in your neighborhood and request help with one click! You can obtain pricing, schedule appointments, and track your transactions. Korenga let you be in control. Trust and Transparency: See information about the provider information, their team members, ratings and qualifications, before you engage. Know whoโ€™s coming and when!

About

BlackBook

Features
Read full description

BlackBook is your private dating journal: an encrypted record for the people in your life. Keep the people you're seeing, the dates you've been on, and the little things you never want to forget in one calm, beautiful place that only you can open. Everything stays on your device, encrypted. No ads. No feeds. No one else. WHY BLACKBOOK - Privacy first. Your notes, photos, and details are encrypted on your device before anything is saved. Optional sync stores only ciphertext, and its key is locked with a recovery key that only you hold. - Lock it down. Protect the app with a PIN and Face ID. An optional decoy mode opens an empty version of the app if the wrong PIN is entered, so a glance over your shoulder reveals nothing. - Calm, not cluttered. Designed to feel comfortable and capture-first, so jotting a thought takes a second. KEEP THE WHOLE STORY - Profiles for everyone you're seeing, dating, or keeping in mind, with photos, status, and the details that matter. - Date history with photos, ratings, and notes. - A private gallery with albums for your photos and videos. - A notes timeline to log every interaction. - Flags, vibes, and a "bring up next time" list so you remember what counts. STAY ON TOP OF IT - A Today view surfaces birthdays, reminders, and people worth reaching out to. - Set reminders so nothing slips. - Search across names, notes, and vibes instantly. FREE, WITH AN OPTIONAL UPGRADE BlackBook is fully usable for free on a single device, with unlimited people, notes, dates, photos, reminders, PIN and Face ID lock, and on-device encryption. SUBSCRIPTION BlackBook Pro - $4.99 per month, or $39.99 per year. (US prices. Your own currency and price are shown in the app before you buy.) What BlackBook Pro includes: - Every contact, note and photo kept in sync on all your devices. - Automatic encrypted backups of everything you have saved. - Restore it all on a new phone whenever you need to. Payment is charged to your Apple Account when you confirm. The subscription renews automatically at the same price unless you cancel at least 24 hours before the end of the period. Manage or cancel it any time in your Apple Account settings. Your life, your book. Kept private. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://thebook.ltd/privacy

Screenshots

Korenga4 screens
BlackBook4 screens

Verdict

The call

The clearest difference is in-app purchases: Korenga at none against BlackBook's 2. Korenga also leads on iOS requirement (12.0 vs 15.0). BlackBook's advantage is update cadence (every 5 days vs every 17 months). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. BlackBook sells 2 in-app purchases, starting at $4.99 per month. Korenga asks for nothing beyond the download.

UpkeepUpdate frequency

Korenga ships an update every 17 months, BlackBook every 5 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

Scorecard3 real differences ยท 3 level
Korenga versus BlackBook: the parameters behind the verdict, then further details
ParameterKorengaBlackBook
PriceFreeFree
Update frequencyEvery 17 monthsEvery 5 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 โ€” better15.0
Further details โ€” not scored
Size40 MB16 MB
Age rating4+17+
DeveloperKorenga, IncKYLE AUSTIN PRIESS

In-app purchases

None

Korenga

No in-app purchases

2 purchases

BlackBook

Subscriptions2
  • BlackBook Pro$4.991 Month
  • BlackBook Pro7 Days trial$39.991 Year

Questions

Is Korenga free?
Korenga is free to download, with no in-app purchases.
Is BlackBook free?
BlackBook is free to download, with in-app purchases available.
Do Korenga or BlackBook have ads?
Neither Korenga nor BlackBook shows ads.
Which is updated more often, Korenga or BlackBook?
Korenga ships an update every 17 months, and BlackBook every 5 days. Most recently, Korenga was updated on October 7, 2026 and BlackBook on October 24, 2026.

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