Reef Guide vs FishRoom
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Reef Guide
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You want to know how hot the animals that can be seen while scuba diving or snorkeling? Find the answer through fingertip on images! In Reef Guide you will found the names to more then a thousand fishes, turtles, sea slugs, corals and mutch other species, which living on coral reef. Short amateur movies show all animals in theier natural environment, as they can each watch. Features: - more than a thousand items with names in English, German and Latin - App-language setting English or German - photo index as of contents - you can scroll through the details of specie to specie like a book - select by family name (for example: show all sea turtles, anamonefishes, …) - choose a popular region worldwide - photos and movies in screen size (rotation) - intelligent full-text search, same in popular or Latin name - Darkmode - no internet connection required - no In-App purchases / no subscription - no promotion - universal-app, works for all devices with iOS/iPadOS 14.6 or newer: iPhone, iPad and iPod touch and Mac silicon with macOS 15.0 or newer
FishRoom
This app helps aquarium hobbyists manage their tanks by tracking water parameters, inhabitants, and maintenance routines. It offers identification tools, a species catalog, and educational guides to enhance the aquarium keeping experience.
- Track water parameters and trends
- Log fish, plants, and equipment
- Plan future aquarium setups
- Identify species with camera
- Browse extensive species catalog
- Interactive educational guides
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FishRoom is the aquarium companion for hobbyists who want their tanks to be more than just tanks. Whether you're cycling your first setup or running a fishroom of planted scapes, FishRoom helps you stay on top of every aquarium you keep — the parameters, the inhabitants, the routines, and the craft that never stops developing. Track every tank: Keep a record of each aquarium you own or plan. Log water parameters (pH, ammonia, nitrite, nitrate, GH, KH, temperature, CO2) and watch trends over time. Track fish, plants, invertebrates, equipment, and maintenance — all in one place. Plan before you stock: Set up planning tanks to model future setups. Use Check Fit to see if a species would work with what you already have — water parameters, temperament, tank size, all considered before you commit. Identify with Lens: Point your camera at a fish, plant, or invertebrate and FishRoom identifies it. Ask follow-up questions about care, compatibility, or quirks. Built for the moment you spot something at the local fish store and need to know if it belongs in your tank. Browse the catalog: Look up any species — tank size, temperament, water requirements, compatibility. The information you need before anything goes in your tank. Share what you keep: Post photos of your tanks, follow other aquarists, ask questions when something's off, celebrate the milestones that only other hobbyists understand. Read for free; post when you have something to share. Learn the craft: Six interactive guides walk you through the fundamentals: cycling, equipment, tank types, planted aquariums, fish keeping, and daily care. Real content, real depth, no fluff. Made for: - New hobbyists learning what they don't yet know - Experienced keepers managing multiple tanks - Aquascapers who want their tanks to look as good as they run No ads. No tracking. No data sold. FishRoom is built with your privacy in mind. We don't sell your data, run ads, or track you across other apps. Your tank data is yours. Get started in minutes. Track your first tank today.
Screenshots
Verdict
The clearest difference is price: FishRoom at Free against Reef Guide's $1.99. FishRoom also leads on update cadence (every 2 months vs every 6 months). On ads, in-app purchases, device support and iOS requirement 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
FishRoom is free to download; Reef Guide costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Reef Guide ships an update every 6 months, FishRoom every 2 months. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | Reef Guide | FishRoom |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14 — better | 15.0 |
| Further details — not scored | ||
| Size | 1.8 GB | 155 MB |
| Age rating | 4+ | 4+ |
| Developer | Harald Feiste | Divino Cesar Soares Lucas |
In-app purchases
Reef Guide
No in-app purchases
FishRoom
No in-app purchases
Questions
Is Reef Guide free?
Is FishRoom free?
Do Reef Guide or FishRoom have ads?
Which is updated more often, Reef Guide or FishRoom?
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