# Chatometer vs Altimeter Pro

The clearest difference is price: Chatometer at Free against Altimeter Pro's $1.99. Chatometer also leads on rating (5.0 vs 4.5) and review sentiment (100% vs 86%). Altimeter Pro's advantage is in-app purchases (none vs 1) and ratings volume (21 vs 5). On update cadence, ads and device support there is nothing between them.

Chatometer is free to download; Altimeter Pro costs $1.99 up front. Chatometer sells 1 one-off in-app purchase. Altimeter Pro asks for nothing beyond the download.

Chatometer holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 5 and 21 respectively. Written reviews point the same way: 100% of Chatometer's written reviews are positive against 86% of Altimeter Pro's.

Chatometer ships an update every 5 days, Altimeter Pro every 3 days. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Chatometer | Altimeter Pro |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/chatometer/id6744563294/reviews)** | [4.5 (21 ratings)](https://appshunter.io/ios/app/altimeter-pro-altitude-and-map/id6747575267/reviews) |
| Number of ratings | 5 | **21** |
| Positive reviews | **100.0% of reviews** | 86.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 11 MB | 29 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Baughan](https://appshunter.io/developer/1526859820) | [海英 王](https://appshunter.io/developer/1802757012) |

## What reviewers say

### Chatometer

[App page](https://appshunter.io/ios/app/chatometer/id6744563294)

This app provides fun insights into your messaging habits by analyzing chat data. It reveals message counts, activity trends, and word usage, all processed securely offline. An optional in-app purchase unlocks the ability to analyze more than three conversations.

**Highlights:** Message, word, and character totals, Messaging activity over time, Most active hours and days, Top words and emoji analysis, Longest words sent, Offline chat analysis, iCloud sync across devices

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chatometer Plus | $2.99 | one-time |


### Altimeter Pro

[App page](https://appshunter.io/ios/app/altimeter-pro-altitude-and-map/id6747575267)

This app provides real-time altitude, air pressure, and oxygen concentration readings using GPS and phone sensors. It also features a high-precision compass, location tracking, and customizable themes for outdoor adventures. Core functions work offline.

**Highlights:** Real-time altitude measurement, Air pressure and oxygen concentration sensing, High-precision electronic compass, GPS coordinates and address lookup, Speed monitoring, Customizable app themes, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Chatometer free?

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

### Is Altimeter Pro free?

Altimeter Pro costs $1.99, with no in-app purchases.

### Which has better reviews, Chatometer or Altimeter Pro?

Chatometer is rated higher. Chatometer averages 5.0 out of 5 from 5 ratings, while Altimeter Pro averages 4.5 from 21 ratings.

### Do Chatometer or Altimeter Pro have ads?

Neither Chatometer nor Altimeter Pro shows ads.

### Which is updated more often, Chatometer or Altimeter Pro?

Chatometer ships an update every 5 days, and Altimeter Pro every 3 days. Most recently, Chatometer was updated on September 29, 2026 and Altimeter Pro on October 9, 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.*