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.
Doc Black Ink
Discover tattoo services, book appointments with artists, and explore customizable options. Purchase gift cards and merchandise, and securely submit payment details.
- Browse tattoo service menus
- Book permanent makeup or tattoos
- View business hours and contact info
- Purchase packages and gift cards
- Secure payment submission
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With the Doc Black Ink app you can: โข Browse tattoo service menus and view all customizable options โข Book permanent makeup or tattoos with your favorite service provider โข View our business hours, contact information & other details โข Purchase packages, gift cards & merchandise โข Submit payment details safely and securely
Aquarium Notebook
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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
Verdict
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
Both are free to download. Aquarium Notebook sells 1 one-off in-app purchase. Doc Black Ink asks for nothing beyond the download.
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.
| Parameter | Doc Black Ink | Aquarium Notebook |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | โ |
| Update frequency | Every 2 months | Weekly โ better |
| Ads | No โ better | Yes |
| In-app purchases | No โ better | Yes |
| Monetization | Free | โ |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 11.0 โ better | 16.6 |
| Further details โ not scored | ||
| Size | 240 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Doc Black Ink Ltd | HALIL UYDURAN |
In-app purchases
Doc Black Ink
No in-app purchases
Aquarium Notebook
- Pro$2.99
Questions
Is Doc Black Ink free?
Is Aquarium Notebook free?
Do Doc Black Ink or Aquarium Notebook have ads?
Which is updated more often, Doc Black Ink or Aquarium Notebook?
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