ATOAWC vs ReefDrift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ATOAWC
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你可以通过这个程序来远程控制你所拥有的所有支持使用本程序远程控制的鱼缸自动化设备,就和在本地通过触摸屏操作设备一样的简单方便。
ReefDrift
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Log every reef parameter in seconds. ReefDrift calculates a Tank Stability Score — Stable, Watch, or Danger — the instant you save a reading. Catch a 0.3 dKH swing before it costs $500 in coral. No account. No cloud. Just your tank data, on your device. LOG THE BIG THREE AND EVERYTHING ELSE Alkalinity (dKH), Calcium, Magnesium — the parameters reef keepers obsess over. Plus Nitrate, Phosphate, pH, Salinity, Temperature, Ammonia, and Nitrite. Last values pre-fill automatically so a full test set takes under ten seconds, not one screen per parameter. TANK STABILITY SCORE ReefDrift calculates a Stable, Watch, or Danger score the instant you save a reading. The score weights every parameter against your target band and flags drift between sessions. A single alk swing from 8.4 to 7.1 dKH registers as Danger before you wonder why a frag is pale. Out-of-range chips light up on the dashboard immediately — no digging, no scrolling. DOSING CALCULATOR — WIRED TO YOUR TANK BRS 2-part, ESV B-Ionic, Red Sea Foundation, Aquaforest KH Coralline, and custom products. Enter tank volume and current reading; ReefDrift gives you the exact dose to hit your target. Works for alk, cal, mag, NO3, and PO4. The math uses your real tank volume, not a generic estimate. TREND CHARTS WITH TARGET-RANGE BANDS Every reading plotted on a line chart with your target band overlaid. See whether alkalinity is riding the top of the band, drifting toward the floor, or cycling after a large dose. Adjust the time window from 7 days to 12 months. MAINTENANCE LOG Record water changes, GFO swaps, ATO top-offs, carbon additions, and frag-tank moves. Cross-reference maintenance events against parameter charts to see what actually moved the needle. TEST REMINDERS Set a reminder per parameter or per task. ReefDrift sends a local notification on schedule — no server required. Never miss a Friday alk test again. HOME SCREEN WIDGET Your last three parameters and next task on your iPhone home screen or lock screen. See your tank status without opening the app. BUILT BY REEF HOBBYISTS We run SPS-dominant systems. We have watched a two-week alk drift destroy a $2,000 Acropora collection. We built ReefDrift because every existing option was either abandoned, clunky, cloud-first, or a bloated social network with a parameter logger bolted on. ReefDrift is ruthlessly focused: fast log, honest score, useful calculator. Nothing else. PRIVACY — YOUR DATA STAYS ON YOUR DEVICE No account. No cloud. No login. All readings are stored locally on your iPhone and never leave your device unless you export them as CSV. Nothing to hack, nothing to lose in a server outage. ReefDrift Pro: Monthly $3.99 · Yearly $19.99 (save 58%) · Lifetime $59.99 — unlimited tanks, no ads, home screen widget, advanced charts, dosing correlation, and PDF reports. Supports: dKH, meq/L, ppm · SG, ppt · °C, °F Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://lid-web-privacy.web.app/reefdrift-privacy-policy-ios.html
Screenshots
Verdict
The clearest difference is in-app purchases: ATOAWC at none against ReefDrift's 3. ATOAWC also leads on ads (none vs shown) and iOS requirement (9.0 vs 18.2). ReefDrift's advantage is update cadence (every 2 weeks vs every 5 months). On price 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. ReefDrift sells 3 in-app purchases, starting at $3.99 per month. ATOAWC asks for nothing beyond the download.
ATOAWC ships an update every 5 months, ReefDrift every 2 weeks. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.
| Parameter | ATOAWC | ReefDrift |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 19 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | 志勇 卢 | Muge Akalin |
In-app purchases
ATOAWC
No in-app purchases
ReefDrift
- ReefDrift Pro Monthly$3.991 Month
- ReefDrift Pro Yearly$19.991 Year
- ReefDrift Pro Lifetime$59.99









