# Batrium BMI vs Tile Calculator

The clearest difference is in-app purchases: Batrium BMI at none against Tile Calculator's 3. Batrium BMI also leads on device support (3 vs 1) and iOS requirement (12.2 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Tile Calculator sells 3 in-app purchases, starting at $2.99 per 7 days. Batrium BMI asks for nothing beyond the download.

Batrium BMI ships an update every 6 weeks, Tile Calculator every 3 weeks. The most recent releases landed on October 7, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Batrium BMI | Tile Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/batrium-bmi/id6475325576/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 61 MB | 9 MB |
| Requires iOS | **12.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Batrium Technologies Pty Ltd](https://appshunter.io/developer/1489556424) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Batrium BMI

[App page](https://appshunter.io/ios/app/batrium-bmi/id6475325576)

Monitor the real-time status of your home or large capacity battery system. View crucial battery parameters like cell voltage, overall voltage, current flow, and internal BMS temperature.

**Highlights:** Real-time battery parameter updates, Cell voltage monitoring, Battery voltage display, Current flow tracking, Internal BMS temperature

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tile Calculator

[App page](https://appshunter.io/ios/app/tile-calculator-estimator/id6772280463)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Backsplash Planner | $2.99 | per 7 days |
| Yearly Remodel Materials | $14.99 | per year |
| Square Footage — Pay Once | $29.99 | one-time |


## Frequently asked questions

### Is Batrium BMI free?

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

### Is Tile Calculator free?

Tile Calculator is free to download, with in-app purchases available.

### Do Batrium BMI or Tile Calculator have ads?

Neither Batrium BMI nor Tile Calculator shows ads.

### Which is updated more often, Batrium BMI or Tile Calculator?

Batrium BMI ships an update every 6 weeks, and Tile Calculator every 3 weeks. Most recently, Batrium BMI was updated on October 7, 2026 and Tile Calculator on October 13, 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.*