Comparison

HAHA Lock vs Hoyi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HAHA Lock

Features
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Add or delete the unlock permission of the smart lock through Bluetooth

About

Hoyi

Features
Read full description

Hoyi - Your AI Eye Care Companion Hoyi is a delightful vision tracking and eye care habit tool designed for parents who want to help their children build healthy screen-time routines. With a cute 3D interactive companion, we make managing vision data simple, engaging, and stress-free. [Key Features] Smart Report Scanner Snap a photo of school vision screening reports or eye exam receipts. Our AI extracts key numbers like visual acuity and eye axial length automatically—no more manual typing. Get a clear, visual growth journal in seconds. Visual Progress Charts Track vision changes over time with easy-to-read trend graphs. Compare this year's results with last year's at a glance. Say goodbye to digging through paper reports in drawers. Healthy Habit Reminders Get personalized break reminders, outdoor activity nudges, and posture tips based on your child's age. Turn eye care into a fun daily check-in game that builds lifelong healthy habits. Nearby Service Finder Need a vision checkup or new glasses? Discover nearby optical shops and vision centers with ratings and credentials, so you can choose with confidence. [Perfect For] • Preschoolers (3-6): Building early awareness of screen time limits • Elementary (6-12): Study break reminders to prevent vision decline • Teenagers (12-18): Managing screen fatigue during heavy study periods [Data Privacy] Your vision records stay on your device or private cloud space with encryption. We can't see your specific data—it's as private as a diary. [Important Notice] Hoyi is a health management utility, not a medical device. We do not provide disease diagnosis, treatment recommendations, or medical advice. All insights are for reference only. Please consult professional eye care providers for medical concerns. Make Hoyi your desktop eye care buddy and start a relaxed approach to vision wellness today!

Screenshots

HAHA Lock4 screens
Hoyi4 screens

Verdict

The call

HAHA Lock and Hoyi are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
HAHA Lock versus Hoyi: the parameters behind the verdict, then further details
ParameterHAHA LockHoyi
PriceFreeFree
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size23 MB62 MB
Age rating4+12+
Developer映宇 陈上海国通视光起旭网络科技有限公司

In-app purchases

None

HAHA Lock

No in-app purchases

None

Hoyi

No in-app purchases

Questions

Is HAHA Lock free?
HAHA Lock is free to download, with no in-app purchases.
Is Hoyi free?
Hoyi is free to download, with no in-app purchases.
Do HAHA Lock or Hoyi have ads?
Neither HAHA Lock nor Hoyi shows ads.

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