zLens vs AquaGlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
zLens
This app helps you manage your contact lens usage and reminds you when it's time to replace them. You can also conveniently order new lenses directly through the app at competitive prices.
- Contact lens usage tracking
- Replacement reminders
- In-app lens ordering
- Price comparisons for lenses
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Manage your contact lenses usage and get a notification/reminder when it is time to change them. Order new contact lenses directly from within the app at great prices.
AquaGlow
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Did you know your 3 PM headache might just be dehydration? AquaGlow turns staying hydrated into something you actually look forward to. Science-Backed, Personalized Goal Calculates your daily target using WHO, NIH and EFSA guidelines based on gender, age, weight and activity level. Sedentary woman 60kg: 1890ml. Active man 80kg: 2900ml. Stunning Bottle Animation Real-time liquid level with sine-wave animation. 6 beautiful bottle skins. Multi-drink color layers. Golden particle burst at 100%. Gamified Habit Building Streak counter, 8 achievements, level system, celebration effects and sounds. Smart Reminders Auto-scheduled around your sleep and wake times. Full-day color timeline: segment width equals amount, color equals drink type. One-Time Purchase, No Subscriptions Pro ($2.99, once): 30+ bottle skins, unlimited history, Apple Watch App, Widgets, CSV export. Privacy First: All data local, no account, no tracking, no ads.
Screenshots
Verdict
The clearest difference is ads: AquaGlow at none against zLens's shown. AquaGlow also leads on update cadence (weekly vs every 3 months). On price, in-app purchases, device support 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. zLens sells 1 one-off in-app purchase and AquaGlow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
zLens ships an update every 3 months, AquaGlow weekly. The most recent releases landed on November 1, 2026 and October 24, 2026 respectively.
| Parameter | zLens | AquaGlow |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (8 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 3 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | DEEPRAY INFORMATICS & ARTIFICIAL INTELLIGENCE SINGLE MEMBER P.C. | 业 陈 |
In-app purchases
zLens
- shareware licence$1.99
AquaGlow
- AquaGlow Pro$2.99
