SmartAquar vs D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartAquar
Remotely manage your aquarium's heating rod from any location. Supports controlling multiple devices simultaneously and allows for easy sharing with family members. Receive instant notifications about your tank's status.
- Remote heating rod control
- Multi-device support
- Automatic operation
- Device sharing
- Real-time condition alerts
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*Control your water tank heating rod anytime and anywhere *Supports multi device control, one device, automatic operation *Device sharing, intelligent life shared by the whole family *Push messages to keep track of water tank conditions at all times
D
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D-Vision is the companion software for electronic sighting devices produced by DiscoveryOpt, which can help you manage your devices. The specific features are as follows: 1. Device Connection 2. Real-time Device Video Streaming 3. Device-side Control 4. Access and Download of the Database 5. Firmware Update
Screenshots
Verdict
The clearest difference is iOS requirement: D at 13.0 against SmartAquar's 15.5. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
SmartAquar ships an update every 2 months, D every 6 weeks. The most recent releases landed on July 21, 2026 and August 22, 2026 respectively.
| Parameter | SmartAquar | D |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 47 MB |
| Age rating | 17+ | 17+ |
| Developer | Gizwits IoT Technology Co., Ltd. | Shenzhen DiscoveryOpt Technology Co., Ltd. |
In-app purchases
SmartAquar
No in-app purchases
D
No in-app purchases
