HAIL™ vs Aquena
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HAIL™
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Interactive technique to ensure student success
Aquena
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Aquena is a water log that fits your day: one tap to record a glass, and that's it. A GOAL THAT STARTS WITH YOU Aquena suggests a daily goal worked out from general public references (EFSA and IOM). Would rather set it yourself? The manual goal is one tap away. MEASURES YOU RECOGNISE Ready measures, each with its own silhouette, always in order of volume. The four you use most sit on the home screen. Need a specific amount? Type it — that's free. TAPPED THE WRONG ONE? UNDO The wrong entry is the most common mistake in an app like this. So undo shows up right after every tap. YOUR HISTORY, DAY BY DAY A streak of days you hit the goal, a daily history, and counters that don't get lost. OPTIONAL LEADERBOARD A daily board, scored by percentage of your goal and capped at 100%. THREE LANGUAGES, TWO UNIT SYSTEMS English, Portuguese and Spanish. Millilitres and litres, or fluid ounces. ABOUT THE GOAL Aquena's calculation is an estimate based on general recommendations and does not replace professional assessment. Consult a doctor or dietitian to define your real hydration needs, especially in case of kidney, heart or liver conditions, pregnancy or use of medication.
Screenshots
Verdict
The clearest difference is in-app purchases: HAIL™ at none against Aquena's 1. HAIL™ also leads on ads (none vs shown). Aquena's advantage is update cadence (every 2 days vs every 3 months) and device support (3 vs 1). On price and iOS requirement 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. Aquena sells 1 one-off in-app purchase. HAIL™ asks for nothing beyond the download.
HAIL™ ships an update every 3 months, Aquena every 2 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.
| Parameter | HAIL™ | Aquena |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | RU Collaborative, LLC | Victor Saito |
In-app purchases
HAIL™
No in-app purchases
Aquena
- Aquena Premium$2.99









