# Alti vs Conversion Calculator

The clearest difference is review sentiment: Conversion Calculator at 100% against Alti's 32%. Conversion Calculator also leads on rating (4.8 vs 3.9) and update cadence (every 5 weeks vs every 37 months). Alti's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 17.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Conversion Calculator sells 1 one-off in-app purchase. Alti asks for nothing beyond the download.

Conversion Calculator holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 286 and 165 respectively. Written reviews point the same way: 32% of Alti's written reviews are positive against 100% of Conversion Calculator's.

Alti ships an update every 37 months, Conversion Calculator every 5 weeks. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Alti | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (286 ratings)](https://appshunter.io/ios/app/alti-meter/id1415403761/reviews) | **[4.8 (165 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews)** |
| Number of ratings | **286** | 165 |
| Positive reviews | 32.4% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 37 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 7 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [albertopasca.it](https://appshunter.io/developer/464579580) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## What reviewers say

### Alti

[App page](https://appshunter.io/ios/app/alti-meter/id1415403761)

This app provides your current altitude with a simple and cool interface. It allows switching between meters and feet and automatically stores your maximum altitude. It's also available for Apple Watch and as a widget.

**Highlights:** Current altitude display, Switch between meters and feet, Store maximum altitude, Apple Watch support, Widget support

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and essential
- 🚀 Very fast readings
- 👍 Clean design
- 👍 Works as promised

**What reviewers complain about**

- 🐛 Inaccurate altitude readings
- 🐛 App is stuck
- 🐛 Géolocalisation ne fonctionne pas
- 🐛 Doesn’t work most of the time
- 🐛 Altitude jumps around

**Reported bugs**

- Altimeter does not read location
- App is stuck
- Not accurate
- Géolocalisation ne fonctionne pas
- Doesn't seem to work on iPad 9

**Requested features**

- Display GPS accuracy
- Add a way to view past altitudes
- Instructions for use


### Conversion Calculator

[App page](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523)

Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.

**Highlights:** Metric and imperial unit conversion, Weight, length, temperature, area, time, Offline functionality, Precise and fast results, Clean and minimal interface, Over 100 measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access forever | $8.99 | one-time |


## Frequently asked questions

### Is Alti free?

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

### Is Conversion Calculator free?

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

### Which has better reviews, Alti or Conversion Calculator?

Conversion Calculator is rated higher. Alti averages 3.9 out of 5 from 286 ratings, while Conversion Calculator averages 4.8 from 165 ratings.

### Do Alti or Conversion Calculator have ads?

Neither Alti nor Conversion Calculator shows ads.

### Which is updated more often, Alti or Conversion Calculator?

Alti ships an update every 37 months, and Conversion Calculator every 5 weeks. Most recently, Alti was updated on October 20, 2026 and Conversion Calculator on October 23, 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.*