Smart Reef vs Countdown
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Reef
Manage your marine aquarium with this app. It provides device management, alerts for issues, and detailed historical data. A central dashboard offers a clear overview of your aquarium's status and device operations.
- Device management
- Aquarium alerts
- Measurement history
- Operational status dashboard
- Planned job journal
- Preset sharing
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Functionality: • device management • alerts when any problems occur in the aquarium • presentation of measurements and the operational status of devices • device operation and measurements history • clear, collective dashboard with information on device operation • modern table of parameters measured in the aquarium • unique journal of planned jobs and aquarium task history integrated with devices Devices may be connected via a Wi-Fi network and your home router. Dashboard sharing, loading and sharing of presets with other users and many more useful features. Supported devices: • Thermo control - temperature controller • Thermo view - temperature monitor • TDS meter - reverse osmosis water monitor • Salinity guardian - salinity monitor • pH meter - pH monitor • Level sensor - water/liquid level meter • Level keeper - automatic water refill system • Smart pump - dosing pump • Power switcher - timing programmer / device switch • Reef flare - smart LED lamp • Smart roller • Smart tester • Dosing pumps • kH keeper
Countdown
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Create a countdown for anything — a trip, a birthday, a deadline — and pin it right to your Home Screen or Lock Screen. Each countdown gets its own emoji and color, and its own widget. Add as many widgets as you like, and pick exactly which countdown each one shows by long-pressing it and choosing Edit Widget. FEATURES • Create countdowns (1 free, unlimited with Pro) • Recurring countdowns — weekly, monthly, or yearly (birthdays, anniversaries, rent) • Pick an emoji and accent color for each countdown • Pin any countdown to its own Home Screen widget • Lock Screen widgets too • Optional reminder notification when a countdown arrives • Countdown Pro unlocks unlimited countdowns and a full set of premium gradient colors Countdown works entirely on your device — there is no account, no login, and nothing is ever sent anywhere.
Screenshots
Verdict
The clearest difference is iOS requirement: Smart Reef at 14.6 against Countdown's 26.0. On price, ads, in-app purchases 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
Both are free to download. Smart Reef sells 7 one-off in-app purchases and Countdown sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Smart Reef | Countdown |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (23 ratings) — better | — |
| Positive reviews | 3.8% of reviews | — |
| Number of ratings | 23 — better | — |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Reef Factory sp. z o.o. | Morgan Hunt |
In-app purchases
Smart Reef
- Warranty 3 years$12.99
- Warranty 3 years$19.99
- Warranty 3 years2 variants$24.99
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- Warranty 3 years$29.99
- Warranty 3 years2 variants$34.99
- Warranty 3 years2 variants$39.99
- Warranty 3 years$49.99
Countdown
- Countdown Pro$1.99









