LARQ vs OTKAX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LARQ
Manage your smart water pitcher and track your hydration. Monitor filter life, view water consumption data, and remotely control purification features. Receive important software updates to enhance your experience.
- Track filter life
- Monitor water consumption
- Activate purification remotely
- Customize pitcher settings
- Receive software updates
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The LARQ App is your personal control center to manage your LARQ Pitcher PureVis. By syncing with the LARQ Pitcher PureVis, you can: • Track remaining LARQ Filter life so you know when to replace your Filter • Review daily household water consumption per week by tracking the volume of water filtered by the LARQ Pitcher PureVis • Remotely activate PureVis feature and customize other settings • Receive software updates
OTKAX
This app connects to your device via Bluetooth to control and test equipment. It also includes a feature to remind users to stay hydrated throughout the day.
- Bluetooth device connection
- Equipment control
- Equipment testing
- Water intake reminders
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Connect the device via Bluetooth; Control and test the equipment of the brand; Remind users to drink water.
Screenshots
Verdict
The clearest difference is rating: LARQ at 4.3 against OTKAX's 2.3. LARQ also leads on ratings volume (599 vs 3). OTKAX's advantage is iOS requirement (12.0 vs 17.0). On price, review sentiment, update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
LARQ holds the better App Store score, 4.3 against 2.3. That said, the two scores are not equally well evidenced: LARQ has 599 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 54% of LARQ's written reviews are positive against 50% of OTKAX's.
LARQ ships an update monthly, OTKAX every 3 weeks. The most recent releases landed on September 22, 2026 and June 1, 2026 respectively.
| Parameter | LARQ | OTKAX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (599 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 54.5% of reviews — better | 50.0% of reviews |
| Number of ratings | 599 — better | 3 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 158 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | LARQ | 水金 陈 |
Customer experience
LARQ
OTKAX
Bugs and requests
LARQ
Reported bugs
3 issues- App fails to register water consumption
- Frequent disconnections between bottle and app
- Filter life indicator not working properly
Requested features
4 requests- Add widgets for home screen and Apple Watch
- Improve water intake tracking accuracy
- Provide more customization options
- Implement push notifications for hydration reminders
OTKAX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
LARQ
No in-app purchases
OTKAX
No in-app purchases
