# Calculator and Unit Converters vs Chatometer

The clearest difference is ads: Chatometer at none against Calculator and Unit Converters's shown. Chatometer also leads on update cadence (every 5 days vs every 2 months). Calculator and Unit Converters's advantage is iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Calculator and Unit Converters sells 3 in-app purchases, starting at $0.29 per 7 days and Chatometer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Calculator and Unit Converters against 5.0 for Chatometer. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Calculator and Unit Converters ships an update every 2 months, Chatometer every 5 days. The most recent releases landed on October 27, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Calculator and Unit Converters | Chatometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/calculator-and-unit-converters/id1570221662/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/chatometer/id6744563294/reviews) |
| Number of ratings | 3 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 18 MB | 11 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [TROTHMATRIX](https://appshunter.io/developer/1451285427) | [Nicholas Baughan](https://appshunter.io/developer/1526859820) |

## What reviewers say

### Calculator and Unit Converters

[App page](https://appshunter.io/ios/app/calculator-and-unit-converters/id1570221662)

This app combines a wide array of calculators and unit converters into a single, user-friendly tool. It offers solutions for financial planning, health monitoring, and everyday measurements, providing fast and accurate results.

**Highlights:** Comprehensive calculators (tip, BMI, loan, age), Versatile unit converters (weight, length, speed), Real-time results, User-friendly interface, Regular updates

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $0.29 | per 7 days |
| Monthly Premium Subscription | $0.99 | per month |
| Premium Version | $14.99 | one-time |


### 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 |


## Frequently asked questions

### Is Calculator and Unit Converters free?

Calculator and Unit Converters is free to download, with in-app purchases available.

### Is Chatometer free?

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

### Which has better reviews, Calculator and Unit Converters or Chatometer?

Calculator and Unit Converters and Chatometer are both rated 5.0 out of 5 on the App Store, from 3 and 5 ratings respectively.

### Do Calculator and Unit Converters or Chatometer have ads?

Calculator and Unit Converters shows ads; Chatometer does not.

### Which is updated more often, Calculator and Unit Converters or Chatometer?

Calculator and Unit Converters ships an update every 2 months, and Chatometer every 5 days. Most recently, Calculator and Unit Converters was updated on October 27, 2026 and Chatometer on October 14, 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.*