Comparison

Doc Black Ink vs Aquarium Notebook

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

Head to head
About

Doc Black Ink

Discover tattoo services, book appointments with artists, and explore customizable options. Purchase gift cards and merchandise, and securely submit payment details.

Highlights
  • Browse tattoo service menus
  • Book permanent makeup or tattoos
  • View business hours and contact info
  • Purchase packages and gift cards
  • Secure payment submission
Features
Read full description

With the Doc Black Ink app you can: โ€ข Browse tattoo service menus and view all customizable options โ€ข Book permanent makeup or tattoos with your favorite service provider โ€ข View our business hours, contact information & other details โ€ข Purchase packages, gift cards & merchandise โ€ข Submit payment details safely and securely

About

Aquarium Notebook

Features
Read full description

Aquarium Notebook is a complete offline fishkeeping journal โ€” track every tank, every fish, and every generation without ever needing an internet connection. FEATURES - Manage multiple aquariums with automatic volume calculation - 136 species with built-in breeding data: gestation periods, time to maturity, typical brood size - Track pregnancies with countdown timers and birth reminders - Build a full lineage tree across generations (F1, F2, F3 and beyond) - Photo timelines per album, per generation, and per tank โ€” with before/after comparison - Log deaths, growth stages, and life events - Keep an expense and income ledger for equipment, food, and livestock sales - Statistics for finances, livestock, breeding, and notes - Export detailed PDF reports of your collection, lineage, and statistics - Reminders for water changes, maintenance, and monthly planning - Available in 11 languages, including species names and breeding terms WHY AQUARIUM NOTEBOOK Most aquarium apps are water parameter loggers. This one is built for breeders. Every screen is organized the way fishkeepers actually think โ€” by tank, by generation, by event โ€” so logging a new birth or a water change takes seconds. All your data stays on your device. No account, no cloud sync, no data collection. Made for guppy, betta, and shrimp breeders, and anyone serious about keeping accurate aquarium records. FREE AND PRO The free version includes all livestock and breeding tracking, all notifications, backup and export, and PDF reports. Pro is a one-time purchase that removes ads and lifts the limits on aquariums, photos, generations, and custom varieties.

Screenshots

Doc Black Ink4 screens
Aquarium Notebook4 screens

Verdict

The call

The clearest difference is in-app purchases: Doc Black Ink at none against Aquarium Notebook's 1. Doc Black Ink also leads on ads (none vs shown) and iOS requirement (11.0 vs 16.6). Aquarium Notebook's advantage is update cadence (weekly vs every 2 months). On price 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. Aquarium Notebook sells 1 one-off in-app purchase. Doc Black Ink asks for nothing beyond the download.

UpkeepUpdate frequency

Doc Black Ink ships an update every 2 months, Aquarium Notebook weekly. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

Scorecard4 real differences ยท 4 level
Doc Black Ink versus Aquarium Notebook: the parameters behind the verdict, then further details
ParameterDoc Black InkAquarium Notebook
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
MonetizationFreeโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS11.0 โ€” better16.6
Further details โ€” not scored
Size240 MB28 MB
Age rating4+4+
DeveloperDoc Black Ink LtdHALIL UYDURAN

In-app purchases

None

Doc Black Ink

No in-app purchases

1 purchases

Aquarium Notebook

One-time1
  • Pro$2.99

Questions

Is Doc Black Ink free?
Doc Black Ink is free to download, with no in-app purchases.
Is Aquarium Notebook free?
Aquarium Notebook is free to download, with in-app purchases available.
Do Doc Black Ink or Aquarium Notebook have ads?
Aquarium Notebook shows ads; Doc Black Ink does not.
Which is updated more often, Doc Black Ink or Aquarium Notebook?
Doc Black Ink ships an update every 2 months, and Aquarium Notebook weekly. Most recently, Doc Black Ink was updated on November 4, 2026 and Aquarium Notebook on November 10, 2026.

Other comparisons