Comparison

HoldOn by CE vs Sightly

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

Head to head
About

HoldOn by CE

This app works with a smart device to monitor your screen time, posture, and lighting conditions. It alerts you with vibrations when you're too close to your screen, slouching, or in dim light, helping you develop healthier digital habits.

Highlights
  • Posture monitoring
  • Screen proximity alerts
  • Lighting condition detection
  • Digital device time tracking
  • Customizable alert settings
  • Habit formation tracking
Features
Read full description

The HoldOn Eye Care Clip and HoldOn Ai/Glasses deviceis are equipped with Artificial Intelligence technologies to help protect the user’s eyes from the risk of nearsightedness, while helping maintain a posture-friendly lifestyle. The device (clip or eye glass) connects to your smartphone via Bluetooth and will notify the user by vibrating when they are too close to the screen, when posture is poor, when lighting is too dark and will also let the user track how much time has been spent on their digital devices. The device will vibrate once for bad posture, twice when the user is too close to the screen, and three times when it’s too dark. The range, angle and brightness can be adjusted from the mobile application. The user can keep track of their improvements in the mobile application and eventually form good eye habits!

About

Sightly

Organize your child's eye health records in one private place. Track exam dates, measurements, prescription notes, and axial length trends. Set reminders for follow-ups and export summaries for doctor visits.

Highlights
  • Child eye health profiles
  • Record vision, refraction, axial length
  • Archive exam reports
  • Review long-term trends
  • Set follow-up reminders
  • Export PDF summaries
Features
Read full description

Sightly helps parents organize their child's eye health records, connecting each exam, axial length changes, and everyday eye care. See the changes, understand the trends, and give daily eye care more direction. Record every exam. Keep the full picture. Record vision, refraction, axial length, and other measurements. Save report photos, OCR text, and doctors' notes. Turn scattered exam information into a clear history you can revisit at your next appointment. See axial length changes. Understand growth trends. Review axial length and refraction changes and explore growth rates over time. With Sightly Plus, view trend forecasts and forecast ranges for the next 12–36 months, explore same-age comparisons, and compare new exams with previously saved forecasts. Log daily eye care. Get to know your habits. Use Sightly Plus to log multiple activities at once and review outdoor time and near work. Activity timers, calendars, weekly reports, and habit summaries based on complete recording days help you discover routines worth keeping or adjusting. Connect your exams with everyday life. With Sightly Plus, review eye care logs between two exams alongside axial length changes. Make your records more meaningful, from each follow-up to your daily routine. Also includes follow-up, medication, and lens-care reminders; FAQs about axial length and everyday eye care; PDF summaries for doctor visits; and backup and restore, including eye care activities. Available on iPhone and iPad in six languages. Sightly supports record keeping, trend references, and communication with clinicians. It does not provide diagnoses or treatment advice. Forecasts and research-population references involve uncertainty and cannot replace clinical exams or a doctor's judgment. Data is stored locally on your device by default. Sightly does not upload local records to the cloud unless you choose to export, share, or restore a backup. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://diveraxis.com/privacy/sightly/

Screenshots

HoldOn by CE3 screens
Sightly4 screens

Verdict

The call

HoldOn by CE and Sightly both sit at 5.0 stars, but that hides the real split: 100% of Sightly's written reviews are positive against 33% of HoldOn by CE's. Sightly also leads on update cadence (every 5 days vs every 2 weeks). HoldOn by CE's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 17.0). On price, rating, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sightly sells 4 in-app purchases, starting at $1.99 per month. HoldOn by CE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for HoldOn by CE against 5.0 for Sightly. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 33% of HoldOn by CE's written reviews are positive against 100% of Sightly's.

UpkeepUpdate frequency

HoldOn by CE ships an update every 2 weeks, Sightly every 5 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard5 real differences · 5 level
HoldOn by CE versus Sightly: the parameters behind the verdict, then further details
ParameterHoldOn by CESightly
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better17.0
Further details — not scored
Size57 MB20 MB
Age rating4+4+
DeveloperClearElectron Co.,Ltd.DiverAxis Technology (Chengdu) Co., Ltd.

Customer experience

HoldOn by CE

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Sightly

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HoldOn by CE

No in-app purchases

4 purchases

Sightly

Subscriptions3
  • Sightly Plus Monthly$1.991 Month
  • Sightly Plus Quarterly$3.993 Months
  • Sightly Plus Yearly$7.991 Year
One-time1
  • Sightly Plus Lifetime$19.99

Questions

Is HoldOn by CE free?
HoldOn by CE is free to download, with no in-app purchases.
Is Sightly free?
Sightly is free to download, with in-app purchases available.
Which has better reviews, HoldOn by CE or Sightly?
HoldOn by CE and Sightly are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do HoldOn by CE or Sightly have ads?
Neither HoldOn by CE nor Sightly shows ads.
Which is updated more often, HoldOn by CE or Sightly?
HoldOn by CE ships an update every 2 weeks, and Sightly every 5 days. Most recently, HoldOn by CE was updated on October 24, 2026 and Sightly on October 28, 2026.

Other comparisons