Aquael BT vs DocIt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aquael BT
Control your aquarium's lighting, filtration, and heating remotely. Create custom light cycles, adjust filter flow, and monitor temperature from anywhere in the world. Features include shared access and PIN protection for settings.
- Remote aquarium device control
- Customizable lighting modes and spectra
- Programmable sunrise/sunset cycles
- Adjustable filter flow and precise heating
- Feeding mode for controlled food placement
- Shared access for collaborative management
- PIN protection for settings
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Full control of your AQUAEL BT devices — now also with the Wi-Fi Gateway BT hub and access from anywhere. Turn your aquarium into a smart, always-connected ecosystem. The AQUAEL BT app lets you control lighting, filtration, and heating with a single tap — whether you’re standing by the tank or on the other side of the world. Pair devices in seconds and fine-tune every parameter to give your fish ideal conditions. What’s new: - Remote control via Aquael Cloud – create a cloud account and connect the Wi-Fi Gateway BT to control BT devices from anywhere and receive push notifications about aquarium status (local BLE range up to 10 m; Wi-Fi range depends on the router). - Stability and performance improvements. Key features: - Two lighting modes – FIXED (steady light) or Day & Night (smooth day-night transitions). - Four ready-made spectra – PLANT, SUNNY, MARINE, and CUSTOM, each fully adjustable. - Programmable sunrise–sunset cycles that mimic natural light. - Flow adjustment – set and schedule filter output. - Precise heating – monitor and correct temperature remotely. - Feeding mode – slows the flow with one click so food stays in the feeding zone. - Wide compatibility – Ultra Slim BT and Leddy Smart BT lamps, Hyper Max BT and Ultramax BT filters, Flow Heater BT heaters, and future BT models. - Multilingual interface – automatically detects your phone’s language (8 versions). - Shared access – invite family members or coworkers to manage the aquarium together. - PIN protection – safeguard key settings against accidental changes. Wi-Fi Gateway BT Acts as a secure bridge between AQUAEL BT devices and the cloud. Once configured, you can monitor parameters and receive notifications from anywhere with an internet connection. Keep your underwater world in perfect condition — effortlessly and from anywhere — with AQUAEL BT.
DocIt
Transform your device into a powerful document scanner and organizer. Capture, sign, measure, and secure your paperwork with smart features and private iCloud sync. All on-device, with no ads or subscriptions.
- Smart document capture with auto-detection
- AR measurement tool for real-world objects
- On-device OCR for text search and copy
- Markup and signature tools
- Secure document locking with Face ID/Touch ID
- Nested folder organization with custom colors
- Private iCloud sync across devices
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Scan, sign, measure, and organize - every kind of paperwork, all on-device. Free, ad-free, with private iCloud sync. No subscriptions, ever. DocIt turns your iPhone camera into a full document workflow. Capture documents, IDs, receipts, books, photos, business cards, and passports with smart edge detection and the right filter for the type you picked. Sign them with your saved signature. Measure real-world objects in AR. Lock the private ones behind Face ID. Sync everything across your iPhone and iPad through your personal iCloud, the same encrypted storage as Apple Notes and Photos. No ads. No subscriptions. No data collection. Built by one person who actually uses it. FEATURES SMART CAPTURE Pick what you are scanning: Document, ID Card, Book, Receipt, Business Card, Photo, or Passport. DocIt auto-tunes edge detection, perspective correction, and color filter for the type you picked. AR MEASURE Tap two points on any real-world surface to get exact distances. Desks, doorways, picture frames, room dimensions. Results save alongside your scans with measurements baked into the photo. Choose imperial or metric in Settings. ON-DEVICE OCR Every scan is run through Apple text recognition automatically. Search your library by content, copy text from any page, or share recognized text as plain .txt. Tap Edit to correct misreads or add notes. MARKUP AND SIGN Pinch to zoom and draw with Apple Pencil or finger. Save signatures once and drop them onto any document. Drag to position, pinch or drag handles to resize, tap once for the remove button. Add editable text annotations alongside. MANAGE PAGES Reorder pages by drag, multi-select to delete or share specific pages, or duplicate a whole document into another folder. Page changes are non-destructive until you save. PRIVATE FILES Lock individual documents or whole folders with a 4-digit PIN. Optional Face ID, Touch ID, or Optic ID for one-glance unlock. The PIN lives in your device secure Keychain. Never synced to iCloud, never recoverable. One PIN, all your locked items. ORGANIZE Nested folders with custom colors, emojis, and categories. Drag scans between folders, multi-select for bulk actions, merge several PDFs into one, share whole folders as ZIPs. Anything you delete waits in the Trash for 30 days. SHARE EVERYWHERE Share any scan as PDF, individual JPG, JPG ZIP for multi-page, or the plain recognized text. Or use any other app share sheet to send PDFs and images straight into DocIt. ONE TAP FROM ANYWHERE Pin DocIt to your Lock Screen, Control Center, or the Action Button. Or ask Siri: Scan with DocIt. A fresh scan is one tap away. AUTO-UPLOAD TO YOUR CLOUD Send every new scan straight to iCloud Drive, Dropbox, OneDrive, or Box. Wherever you already keep your files. No third-party logins to manage. SYNCED PRIVATELY Folders, scans, and recognized text sync across iPhone and iPad through your private iCloud. No third-party servers. Ever. SIX APP ICONS Pick from Classic, themed colors, or the Liberty (USA) edition. Switch from Settings then App Icon. BUILT BY ONE PERSON DocIt is built and maintained by a single indie developer. No VC, no growth team, no ad partners. The optional Tip Jar in Settings keeps the lights on, only if you want to. We do not sell your data because we do not have your data. Everything happens on-device, syncs through your personal iCloud, and stays yours. Questions or feedback? contact@castleground.co
Screenshots
Verdict
The clearest difference is in-app purchases: Aquael BT at none against DocIt's 3. Aquael BT also leads on iOS requirement (13.0 vs 26.0). DocIt's advantage is update cadence (weekly vs every 3 weeks). On price, rating, ratings volume and ads 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
Both are free to download. DocIt sells 3 one-off in-app purchases. Aquael BT asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Aquael BT against 5.0 for DocIt. Both are backed by a comparable volume of ratings — 3 and 3 respectively.
Aquael BT ships an update every 3 weeks, DocIt weekly. The most recent releases landed on August 19, 2026 and September 7, 2026 respectively.
| Parameter | Aquael BT | DocIt |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (3 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 163 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | AQUAEL SP Z O O | Castleground LLC |
Customer experience
Aquael BT
DocIt
In-app purchases
Aquael BT
No in-app purchases
DocIt
- Optional Small Tip$0.99
- Optional Medium Tip$4.99
- Optional Large Tip$9.99








