# Timer | Interval vs Simple Weight & BMI Tracker

The clearest difference is ads: Timer | Interval at none against Simple Weight & BMI Tracker's shown. Simple Weight & BMI Tracker's advantage is update cadence (every 4 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Timer | Interval sells 1 one-off in-app purchase and Simple Weight & BMI Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Timer | Interval ships an update every 2 weeks, Simple Weight & BMI Tracker every 4 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Timer | Interval | Simple Weight & BMI Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 45 MB | 40 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MICAH JOHN WALKER](https://appshunter.io/developer/1877508805) | [Simple Works LLC](https://appshunter.io/developer/1880967664) |

## What reviewers say

### Timer | Interval

[App page](https://appshunter.io/ios/app/timer-interval/id6759624277)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timer \| Interval | $2.99 | one-time |


### Simple Weight & BMI Tracker

[App page](https://appshunter.io/ios/app/simple-weight-and-bmi-tracker/id6759824203)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove All Ads | $8.99 | one-time |


## Frequently asked questions

### Is Timer | Interval free?

Timer | Interval is free to download, with in-app purchases available.

### Is Simple Weight & BMI Tracker free?

Simple Weight & BMI Tracker is free to download, with in-app purchases available.

### Do Timer | Interval or Simple Weight & BMI Tracker have ads?

Simple Weight & BMI Tracker shows ads; Timer | Interval does not.

### Which is updated more often, Timer | Interval or Simple Weight & BMI Tracker?

Timer | Interval ships an update every 2 weeks, and Simple Weight & BMI Tracker every 4 days. Most recently, Timer | Interval was updated on October 28, 2026 and Simple Weight & BMI Tracker on October 24, 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.*