# i vs Otterlocks

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.

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

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.

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.

## The numbers

| Metric | i | Otterlocks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (35 ratings)](https://appshunter.io/ios/app/i-seeing/id926099814/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/otterlocks-safe-sync/id6751594201/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 6 MB | 45 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Qingying Electronic Technology LLC](https://appshunter.io/developer/926099802) | [Otterlocks](https://appshunter.io/developer/1835934140) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-seeing/id926099814)

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:** macOS Compatibility

**In-app purchases:** none


### Otterlocks

[App page](https://appshunter.io/ios/app/otterlocks-safe-sync/id6751594201)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*