Aquawiz vs Reef Stability
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aquawiz
Automate and monitor your aquarium's water quality for optimal coral health. This app provides real-time tracking of key parameters like KH and pH, with automated dosing and seamless integration with smart aquarium gear.
- Real-time KH and pH tracking
- Automated dosing control
- Calcium reactor control
- Trace element dosing system
- Remote monitoring and alerts
- Trend charting and insights
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AquaWiz - Smarter Reefs. Happier Corals. Take the stress out of reef keeping with AquaWiz's smart aquarium gear, designed to help your KH, pH, and calcium levels stay reef-perfect automatically. KHA - KH Monitoring & Auto Dosing • Real-time KH and pH tracking to keep your water chemistry stable • Automated dosing - precision control without the hassle • Syncs seamlessly with CRA to boost calcium reactor performance • Beautiful charts and insights to help you track trends over time CRA - Smart Calcium Reactor Control • Manages Ca, Mg, and alkalinity with surgical precision • Auto-adjusts based on live KH data from KHA • Remote monitoring equals less stress, more reef zen Other AquaWiz Goodies • ClearSea Dosing System for trace element perfection • A growing lineup of smart, connected reef tools Why AquaWiz? • Full ecosystem: KHA and CRA work together in harmony • Remote control and automation right from your phone • Get alerts and insights when your tank needs attention • Manage multiple devices in one sleek app Whether you're just starting out or running a coral kingdom, AquaWiz makes reefing simpler, smarter, and more fun. Let your reef run itself. Start with AquaWiz today!
Reef Stability
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Reef Stability turns your own test results into the two things every reef keeper actually needs: how much to dose, and when to leave the tank alone. Log your alkalinity, calcium, magnesium and nutrients, and Reef Stability learns how fast your tank uses each one. Then it works out the daily dose to hold it steady — from your data, not a generic chart. When a wobble is just test-kit noise, it says so, instead of sending you chasing a number. WHAT IT DOES - Know what to change — a daily dose from your own tank's measured uptake - Stability first — it tells you when to do nothing - Every parameter on one clean screen: alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, pH - Trends that filter out test-kit scatter, so you see real drift - Safe by design — dose changes stay within reef-safe daily limits, with extra caution for SPS - Honest by design — sourced chemistry, and it never invents a number it can't stand behind - Your data is yours — full history and CSV export, free, forever - No account, no sign-up — your logs stay on your device FREE Log, track and export everything — free, with no time limit. REEF STABILITY PREMIUM Unlocks the dose recommendations, supplement forecasting and cross-parameter interpretation. Available monthly, annually, or as a one-time lifetime purchase. Stability over chasing numbers. --- Privacy Policy: https://reefstability.com/privacy Terms of Use: https://reefstability.com/terms Subscriptions are billed to your Apple ID. An auto-renewing subscription renews unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. A lifetime purchase is a one-time payment.
Screenshots
Verdict
The clearest difference is in-app purchases: Aquawiz at none against Reef Stability's 3. Aquawiz also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Reef Stability's advantage is update cadence (weekly vs every 2 months). On price and ads 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. Reef Stability sells 3 in-app purchases, starting at $6.99 per month. Aquawiz asks for nothing beyond the download.
Aquawiz ships an update every 2 months, Reef Stability weekly. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.
| Parameter | Aquawiz | Reef Stability |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 52 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | KUAN TING PAN | YUSUF AYDIN |
In-app purchases
Aquawiz
No in-app purchases
Reef Stability
- Premium Monthly$6.991 Month
- Premium Annual$39.991 Year
- Premium Lifetime$89.99









