WatchFlower vs Specula
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WatchFlower
This application reads and plots data from compatible Bluetooth plant sensors, thermometers, and air quality monitors. It features an extensive plant database and supports multiple languages. The app prioritizes user privacy by not tracking usage or requiring personal data.
- Reads Bluetooth plant sensors
- Plots sensor data
- Supports thermometers and air quality sensors
- Extensive plant database (3400+ entries)
- No account or personal data required
- Multi-language support
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WatchFlower is a plant monitoring application that reads and plots data from compatible Bluetooth sensors like Xiaomi 'Flower Care' or Parrot 'Flower Power'. WatchFlower also works great with a couple of Bluetooth thermometers and air quality monitoring sensors! WatchFlower is an open source software. By buying it here, you support its development! It doesn't track your application usage, doesn't require an account, your GPS position, nor any other personal data! The application is available in English, Chinese, Danish, Dutch, Frisian, French, German, Norwegian, Spanish and Russian. Application developed by Emeric Grange. Visual design by Chris Díaz. New features: - WatchFlower now has a plant database with over 3400 entries! Supported sensors: • Xiaomi "Flower Care" / VegTrug "Grow Care Home" • Xiaomi "Flower Care Max" / VegTrug "Grow Care Garden" • Xiaomi "RoPot" / VegTrug "Grow Care Pot" - Works with both international and Chinese versions. • Tuya "Flower Care" • Parrot "Flower Power" • Parrot "Pot" - Automatic watering is not yet supported. • Xiaomi "Digital Hygrometer Clock" • Xiaomi "Digital Hygrometer Alarm" - Supports automatic time setting and switching temperature units. • Xiaomi "Digital Hygrometer" • Xiaomi "Digital Hygrometer 2" • Xiaomi "BLE Temperature and Humidity sensor" (with LCD screen) • ClearGrass "Digital Bluetooth Thermometer and Hygrometer" (with EInk screen) • ClearGrass "Temp & RH Monitor" (with LCD screen) • Qingping "Temp & RH Monitor Lite" (with LCD screen) • SensorBlue "ThermoBeacon" (LCD and keychain) • Qingping "Air Monitor Lite" • Honeywell HCHO detector • VSON "Air Box" WP6003 Follow development, post bug reports and suggest new features on the GitHub page (https://github.com/emericg/WatchFlower) or contact me directly by email (emeric.grange@gmail.com). This project is NOT associated with Xiaomi, Parrot, or any sensor manufacturer.
Specula
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Specula watches the services you host yourself and tells you at a glance which ones are running, which are struggling and which one just went down. No account, no middleman server, no telemetry: the app queries your machines directly on your network. Your API keys stay on your device. A DASHBOARD, NOT A LIST OF LINKS Every service shows its real metrics, read through its own API: Immich's photo count, AdGuard's blocked queries, your NAS's free space, Proxmox's containers, the volumes filling up. The service type is recognised automatically — Immich, Nextcloud, Home Assistant, Proxmox, OpenMediaVault, UniFi, Portainer, Vaultwarden, Paperless and many more. UP AND RUNNING IN THREE MINUTES Scan your network: Specula finds your services on its own. Or import the services.yaml you already use with Homepage — groups, URLs and widgets carry over as they are. Otherwise, add an address by hand. THE OUTAGES THAT MATTER A service that stops answering after three attempts triggers a notification. The status wall keeps thirty days of history and works out each service's real uptime. Alerts — service offline, disk full, temperature — are enabled one by one, and a volume that is meant to be full is excluded with a single gesture. WHEREVER YOU LOOK iPhone, iPad, Mac, with widgets on the Home Screen and the Lock Screen, a Live Activity during an outage and access from the Mac menu bar. One address per service: the one that answers from your device, whether you go through the local network, a VPN, a reverse proxy or a tunnel. TRY IT BEFORE YOU SET IT UP A complete demo mode, with simulated data, shows you the app working without installing anything. FOUR SERVICES ON THE HOUSE The first four services are free, with no account and no time limit. Beyond that, each slot is bought once and stays yours, and you can also lift the limit permanently in one go and support the project. See the App Store for pricing. Slots you buy follow you from one device to another.
Screenshots
Verdict
The clearest difference is price: Specula at Free against WatchFlower's $1.99. Specula also leads on update cadence (every 3 days vs every 2 months). WatchFlower's advantage is in-app purchases (none vs 2) and iOS requirement (14.0 vs 26.0). On ads and device support 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
Specula is free to download; WatchFlower costs $1.99 up front. Specula sells 2 one-off in-app purchases. WatchFlower asks for nothing beyond the download.
WatchFlower ships an update every 2 months, Specula every 3 days. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | WatchFlower | Specula |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (5 ratings) — better | — |
| Positive reviews | 78.6% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 14.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 43 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Emeric Grange | Sylvain Malard |
In-app purchases
WatchFlower
No in-app purchases
Specula
- Service slot$0.49
- Unlimited services$17.99









