# LECO Cornerstone vs i

The clearest difference is update cadence: i at fortnightly against LECO Cornerstone's every 5 weeks. LECO Cornerstone's advantage is iOS requirement (8.0 vs 10.0). On price, ads, in-app purchases and device support there is nothing between them.

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

LECO Cornerstone ships an update every 5 weeks, i fortnightly. The most recent releases landed on June 8, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | LECO Cornerstone | i |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/leco-cornerstone/id546739092/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free | — |
| Size | 59 MB | 5 MB |
| Requires iOS | **8.0** | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LECO Corporation](https://appshunter.io/developer/546739095) | [Robo Electronics co., Ltd.](https://appshunter.io/developer/1232651973) |

## What reviewers say

### LECO Cornerstone

[App page](https://appshunter.io/ios/app/leco-cornerstone/id546739092)

Monitor your LECO instrument's status and results remotely from your device. View data, check maintenance, and receive vital updates on analysis completion and system information.

**Highlights:** Remote instrument status monitoring, View set and replicate results, Data visualization on plots, Check maintenance status, Access methods and details, Receive vital message updates

**Features:** macOS Compatibility

**In-app purchases:** none


### i

[App page](https://appshunter.io/ios/app/i-dothermometer/id1546064427)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LECO Cornerstone free?

LECO Cornerstone is free to download, with no in-app purchases.

### Is i free?

i is free to download, with no in-app purchases.

### Do LECO Cornerstone or i have ads?

Neither LECO Cornerstone nor i shows ads.

### Which is updated more often, LECO Cornerstone or i?

LECO Cornerstone ships an update every 5 weeks, and i fortnightly. Most recently, LECO Cornerstone was updated on June 8, 2026 and i on May 16, 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.*