ChatModel vs AquaKeeper
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
ChatModel
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ChatModel is an AI assistant based on Artificial Intelligence technology with multimodal features, map recognition, document recognition, networking and more. networking and more. Welcome to ChatModel, our app combines the latest AI technology to provide you with a new chatting experience. Whether you want to get advice, find answers to your questions, chat about the news, or plan for the future, ChatModel has you covered. It is good at handling a variety of tasks, such as writing essays, writing resumes, travel planning, language translation, recipe recommendations, programming guidance, writing song lyrics, and other tasks. It is good at handling a variety of tasks, such as writing essays, writing resumes, travel planning, language translation, recipe recommendations, programming guidance, writing song lyrics, and more. - Supports streaming output to reduce waiting time. - Supports context association, context segmentation and other functions. - Support picture and file questioning to experience the latest models. - Support switching models, currently 80+, experience different AI. - Support 4o, 4.0, o1, opus, sonnet, gemini, llama3.3, Deepseek, etc., make the answer more intelligent. - Support route switching, extremely fast experience. When encountering a question, the prompt is abnormal, you can try in the setting page - route switching function Do not enter personal information. It may generate offensive or dangerous content.ChatModel is not responsible for the generated content. ChatModel is not responsible for the generated content. - Users can subscribe to full functionality with unlimited access; Subscriptions are charged on an annual basis and will be debited from the iTunes account at the end of the year. - Subscriptions are charged on an annual basis and will be debited from the iTunes account at the time the User confirms the purchase; Users may turn off auto-renewal. - Users may turn off auto-renewal of a subscription 24 hours before the end of the current subscription, or the subscription will automatically renew; An Apple ID with an auto-renewal will be automatically renewed. - An Apple ID with an auto-renewing subscription will be automatically charged to the iTunes Account 24 hours prior to the expiration of each billing cycle and extended for the corresponding period of validity. and extended for the corresponding period of validity. - User-managed subscription services, i.e., you can go to your user account settings to turn off automatic subscriptions after purchase. Privacy Policy: https://sites.google.com/view/chatmodelprivacy Usage Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula.
AquaKeeper
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Track every tank. Catch problems early. Never miss maintenance. Scan a liquid test kit with your camera and AquaKeeper logs the reading for you. Then it charts every parameter, scores each tank's health, and flags what needs attention โ before small problems get expensive. TEST KIT SCANNER Point your camera at an API, Red Sea, or Salifert liquid test kit. AquaKeeper reads the color against a reference card and logs the result for you โ no more squinting at a color chart or typing numbers by hand. WATER TEST LOGGING Log pH, ammonia, nitrite, nitrate, phosphate, calcium, alkalinity, magnesium, salinity, and temperature. Beautiful charts show trends over 7, 30, 90 days or all time. Safe-range lines tell you instantly if a parameter is off. Tap any data point for the exact reading. HEALTH SCORES Every tank gets a 0โ100 health score calculated from your recent water tests. See at a glance which tanks are thriving and which need attention โ before small problems become expensive ones. SMART COACH AquaKeeper watches your recent tests, livestock, and tasks, then flags what actually needs attention โ a KH that's been sliding for days, nitrate trending up, a water change running late. Plain-language insights land in your Today tab, not a dashboard you have to interpret yourself. LIVESTOCK TRACKER Log every fish, coral, and invertebrate with species name, purchase price, date added, and current status. Browse 200+ species with care guides, minimum tank size, temperature and pH ranges. Compatibility warnings alert you before adding a new inhabitant that may conflict with your existing livestock. MAINTENANCE SCHEDULER Create recurring tasks for water changes, filter cleanings, media replacements, and anything else your tank needs. The Today tab shows all overdue and due-today tasks across every tank in one view. Push notifications remind you before tasks slip. EQUIPMENT LOG Track pumps, lights, skimmers, heaters, and reactors. Log purchase date, price, and warranty expiry. Get highlighted warnings when warranties are approaching. See your total equipment investment per tank. PHOTO LOG Document your tank's journey. A photo timeline shows how your aquascape and corals have grown over months and years. Tap any photo for fullscreen view with pinch-to-zoom. iPHONE AND iPAD AquaKeeper works natively on iPhone and iPad โ including a sidebar layout on iPad โ with optimized layouts for both. Your data syncs automatically across all your Apple devices via iCloud at no extra cost. SUPPORTED TANK TYPES Reef ยท Freshwater ยท Planted ยท Brackish AquaKeeper is free to download. Optional subscriptions are available. See App Store for details. SUBSCRIPTION: โข Payment charged to Apple ID at confirmation of purchase. โข Auto-renews unless canceled at least 24 hours before renewal. โข Manage or cancel subscriptions in Settings > Apple ID > Subscriptions. REACH US: *** Privacy Policy: https://bit.ly/3JACPMM *** Terms of Use: https://bit.ly/4qYKR2R *** Support: actiondriven.business@gmail.com Requires iOS 17.0 or later.
Screenshots
Verdict
The clearest difference is ads: ChatModel at none against AquaKeeper's shown. ChatModel also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence and in-app purchases 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. ChatModel sells 3 in-app purchases, starting at $3.99 per 7 days and AquaKeeper sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
ChatModel ships an update monthly, AquaKeeper every 2 months. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | ChatModel | AquaKeeper |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly โ better | Every 2 months |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone |
| Requires iOS | 14.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 15 MB | 18 MB |
| Age rating | 9+ | 4+ |
| Developer | Qijie Information | Trang Le |
In-app purchases
ChatModel
- Weekly Plus$3.997 Days
- Monthly Plus$12.991 Month
- Annual Plus$119.001 Year
AquaKeeper
- One Month$0.991 Month
- One Year$8.991 Year
- Lifetime$12.99









