# All Units Convertor vs Velo

The clearest difference is ads: Velo at none against All Units Convertor's shown. Velo also leads on ratings volume (4 vs 1). All Units Convertor's advantage is iOS requirement (13.0 vs 16.4). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. All Units Convertor sells 2 one-off in-app purchases and Velo 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 All Units Convertor against 5.0 for Velo. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | All Units Convertor | Velo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/all-units-convertor/id1611287048/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/velo-converter/id6762063706/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | Freemium |
| Size | 11 MB | 58 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [恒卓 刘](https://appshunter.io/developer/509484187) | [Huegge LLC](https://appshunter.io/developer/1892716404) |

## What reviewers say

### All Units Convertor

[App page](https://appshunter.io/ios/app/all-units-convertor/id1611287048)

Easily convert between various units of measurement, including currency, length, mass, and temperature. Features real-time currency exchange rates and a clean, intuitive interface for quick conversions.

**Highlights:** Supports 10 common unit types, Real-time currency exchange rates, Clear, at-a-glance conversions, iOS system UI compatibility, Converts currency, energy, length, temperature, mass, angle, time, area, bytes, force, volume, torque

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 一杯可乐 | $0.99 | one-time |
| 一杯咖啡 | $1.99 | one-time |


### Velo

[App page](https://appshunter.io/ios/app/velo-converter/id6762063706)

This app offers a fast and visual way to compare multiple units simultaneously. Its clean interface allows for effortless exploration of different values, making conversions for time zones, distances, currencies, and measurements intuitive and fun.

**Highlights:** Compare multiple units side-by-side, Instant, scroll-based value updates, Converts time zones, distance, currency, and more, Customizable unit lists, Clean and distraction-free design

**Features:** Apple Watch app, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Velo Pro | $2.99 | one-time |


## Frequently asked questions

### Is All Units Convertor free?

All Units Convertor is free to download, with in-app purchases available.

### Is Velo free?

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

### Which has better reviews, All Units Convertor or Velo?

All Units Convertor and Velo are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do All Units Convertor or Velo have ads?

All Units Convertor shows ads; Velo does not.

### Which is updated more often, All Units Convertor or Velo?

All Units Convertor ships an update fortnightly, and Velo fortnightly. Most recently, All Units Convertor was updated on November 3, 2026 and Velo on November 5, 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.*