# Calc Ultra vs oMeoo

The clearest difference is price: oMeoo at Free against Calc Ultra's $9.99. oMeoo also leads on in-app purchases (none vs 1). Calc Ultra's advantage is update cadence (every 2 days vs monthly) and iOS requirement (14.0 vs 16.4). On ads and device support there is nothing between them.

oMeoo is free to download; Calc Ultra costs $9.99 up front. Calc Ultra sells 1 one-off in-app purchase. oMeoo asks for nothing beyond the download.

Calc Ultra ships an update every 2 days, oMeoo monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Calc Ultra | oMeoo |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calc-ultra/id6448957105/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Monthly |
| Monetization | Paid | — |
| Size | 10 MB | 15 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [小飞 刘](https://appshunter.io/developer/1679472128) | [东举 杨](https://appshunter.io/developer/1716951144) |

## What reviewers say

### Calc Ultra

[App page](https://appshunter.io/ios/app/calc-ultra/id6448957105)

This comprehensive utility app offers a suite of powerful calculation and conversion tools. It includes a voice calculator, customizable toolkits, health index tracking, and essential measurement instruments like rulers and compasses.

**Highlights:** Voice calculator for complex math, Customizable calculation tool store, Health index tracking, Ruler, protractor, and level tools, Compass and speedometer, Date and unit converters

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support A Cup Of Coffee | $2.99 | one-time |


### oMeoo

[App page](https://appshunter.io/ios/app/omeoo/id6472629160)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Calc Ultra free?

Calc Ultra costs $9.99, and also offers in-app purchases.

### Is oMeoo free?

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

### Do Calc Ultra or oMeoo have ads?

Neither Calc Ultra nor oMeoo shows ads.

### Which is updated more often, Calc Ultra or oMeoo?

Calc Ultra ships an update every 2 days, and oMeoo monthly. Most recently, Calc Ultra was updated on November 3, 2026 and oMeoo on October 30, 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.*