Comparison

i vs Otterlocks

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

Head to head
About

i

Transform your smartphone into a powerful magnification tool. Observe and record microscopic details with your phone's camera and a macro lens. Measure objects with a scale bar and add notes to your digital micrographs.

Highlights
  • Professional magnification tool
  • Record digital micrographs
  • Optical magnification
  • Up to 10x digital zoom
  • Scale bar for measurement
  • Add notes and remarks
  • Direct photo sharing
Features
Read full description

Use this app to work with smartphone microscopes or any phone macro-lens as an professional magnification tool to observe tiny objects and record digital micrographs with your Phone. Features: Capture of photos with tiny objects as you do with sophisticated optical microscope Optical magnification ratio depending on your smartphone microscope Up to 10x digital magnification in App Scale bar for objects measurement which can be toggled on/off Automatic recording of shooting date and time Allow you to add notes and remarks to your picture Direct sharing of photos with email, message. Attach smartphone microscope to your Phone and convert it into a convenient portable microscope. Capture and save micrographs. Zoom in on photos and tag pictures with comments. Access your photos from your i-Seeing app, email them to your computer and colleagues. More detail at: www.mobile-scope.com

About

Otterlocks

This app provides real-time notifications for smart lock status changes, alerting authorized personnel to lockouts and clear events. It generates comprehensive reports detailing lockout timelines for all equipment.

Highlights
  • Real-time smart lock status notifications
  • Lockout alerts to authorized workers
  • All clear notifications
  • Lockout event reporting
  • Full lockout timelines
  • Equipment lockout tracking
Features
Read full description

• Notifies all workers to Safe Sync Smart Lock status changes • Send ‘Lock Out Alerts’ and ‘All Clear’ notification to authorized and affected workers with the touch of button • Reporting of all lockout event creating full timelines for when lockouts occur for all equipment.

Screenshots

i3 screens
Otterlocks4 screens

Verdict

The call

The clearest difference is rating: Otterlocks at 5.0 against i's 2.7. Otterlocks also leads on update cadence (every 4 months vs every 14 months). i's advantage is ratings volume (35 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Otterlocks holds the better App Store score, 5.0 against 2.7. That said, the two scores are not equally well evidenced: i has 35 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

i ships an update every 14 months, Otterlocks every 4 months. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
i versus Otterlocks: the parameters behind the verdict, then further details
ParameteriOtterlocks
PriceFreeFree
Rating2.7 (35 ratings)5.0 (1 ratings) — better
Positive reviews20.0% of reviews—
Number of ratings35 — better1
Update frequencyEvery 14 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size6 MB45 MB
Age rating4+4+
DeveloperShanghai Qingying Electronic Technology LLCOtterlocks

Customer experience

i

All ratings34 ratings
Positive38.2%
Neutral8.8%
Negative52.9%
Written reviews25 reviews
Positive20.0%
Neutral8.0%
Negative72.0%

Otterlocks

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

i

No in-app purchases

None

Otterlocks

No in-app purchases

Questions

Is i free?
i is free to download, with no in-app purchases.
Is Otterlocks free?
Otterlocks is free to download, with no in-app purchases.
Which has better reviews, i or Otterlocks?
Otterlocks is rated higher. i averages 2.7 out of 5 from 35 ratings, while Otterlocks averages 5.0 from 1 ratings.
Do i or Otterlocks have ads?
Neither i nor Otterlocks shows ads.
Which is updated more often, i or Otterlocks?
i ships an update every 14 months, and Otterlocks every 4 months. Most recently, i was updated on October 22, 2026 and Otterlocks on October 28, 2026.

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