# Heightometer vs HIIT Timer Pro

The clearest difference is price: HIIT Timer Pro at Free against Heightometer's $0.99. HIIT Timer Pro also leads on rating (5.0 vs 3.0). Heightometer's advantage is in-app purchases (none vs 2) and update cadence (every 2 days vs every 9 days). On ads there is nothing between them.

HIIT Timer Pro is free to download; Heightometer costs $0.99 up front. HIIT Timer Pro sells 2 in-app purchases, starting at $2.99 per month. Heightometer asks for nothing beyond the download.

HIIT Timer Pro holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Heightometer ships an update every 2 days, HIIT Timer Pro every 9 days. The most recent releases landed on October 11, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Heightometer | HIIT Timer Pro |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/heightometer-height-predictor/id1620546792/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hiit-timer-pro-intervals/id6747914671/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 9 days |
| Monetization | Paid | **Freemium** |
| Size | 43 MB | 20 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kartik Khatana](https://appshunter.io/developer/1664325011) | [Develak](https://appshunter.io/developer/1803580275) |

## What reviewers say

### Heightometer

[App page](https://appshunter.io/ios/app/heightometer-height-predictor/id1620546792)

This application uses scientific and mathematical calculations based on a child's growth rate to predict their approximate future height. It provides future height estimates in both inches and centimeters for children aged 8 to 18.

**Highlights:** Future height prediction, Growth rate analysis, Scientific calculations, Mathematical formulas, Height in inches and centimeters, Child age range 8-18

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

**In-app purchases:** none


### HIIT Timer Pro

[App page](https://appshunter.io/ios/app/hiit-timer-pro-intervals/id6747914671)

This app provides a precision timer for high-intensity interval training, offering customizable workout parameters and clear visual cues. It supports background playback, haptic feedback, and auto-saves workout history with detailed statistics.

**Highlights:** Customizable work, rest, and round intervals, Giant countdown screen and progress ring, Studio-grade sound packs with adjustable volume, Background playback and optional haptic feedback, One-tap controls for pause, skip, stop, and mute, Auto-save workout history and performance stats, Offline-first design for training anywhere

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimplyTask Pro - Monthly | $2.99 | per month |
| Hiit Timer Pro - Yearly | $19.99 | per year |


## Frequently asked questions

### Is Heightometer free?

Heightometer costs $0.99, with no in-app purchases.

### Is HIIT Timer Pro free?

HIIT Timer Pro is free to download, with in-app purchases available.

### Which has better reviews, Heightometer or HIIT Timer Pro?

HIIT Timer Pro is rated higher. Heightometer averages 3.0 out of 5 from 4 ratings, while HIIT Timer Pro averages 5.0 from 1 ratings.

### Do Heightometer or HIIT Timer Pro have ads?

Neither Heightometer nor HIIT Timer Pro shows ads.

### Which is updated more often, Heightometer or HIIT Timer Pro?

Heightometer ships an update every 2 days, and HIIT Timer Pro every 9 days. Most recently, Heightometer was updated on October 11, 2026 and HIIT Timer Pro on September 26, 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.*