# Calc Ultra vs PK10000

The clearest difference is review sentiment: Calc Ultra at 100% against PK10000's 55%. Calc Ultra also leads on rating (5.0 vs 4.3) and update cadence (every 2 days vs every 3 weeks). PK10000's advantage is price (Free vs $9.99). On ratings volume, ads, in-app purchases and device support there is nothing between them.

PK10000 is free to download; Calc Ultra costs $9.99 up front. Calc Ultra sells 1 one-off in-app purchase and PK10000 sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Calc Ultra holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 6 respectively. Written reviews point the same way: 100% of Calc Ultra's written reviews are positive against 55% of PK10000's.

Calc Ultra ships an update every 2 days, PK10000 every 3 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calc Ultra | PK10000 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calc-ultra/id6448957105/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/pk10000-focus-timer/id6469668991/reviews) |
| Number of ratings | 4 | **6** |
| Positive reviews | **100.0% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 10 MB | 56 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [小飞 刘](https://appshunter.io/developer/1679472128) | [正峰 蒋](https://appshunter.io/developer/1102407664) |

## 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 |


### PK10000

[App page](https://appshunter.io/ios/app/pk10000-focus-timer/id6469668991)

This app helps you achieve mastery through deliberate practice by tracking your progress towards long-term goals. It offers goal management, detailed statistics, and a Pomodoro timer to enhance focus and efficiency.

**Highlights:** Goal Management (100-10,000 hours), Tag Classification (12 categories), Data Statistics (daily, monthly, yearly), Pomodoro Timer (study/break sessions), Minimalist Interface, Subscription Plans

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annually | $3.99 | per year |
| Early Bird MemberShip | $2.99 | one-time |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Calc Ultra free?

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

### Is PK10000 free?

PK10000 is free to download, with in-app purchases available.

### Which has better reviews, Calc Ultra or PK10000?

Calc Ultra is rated higher. Calc Ultra averages 5.0 out of 5 from 4 ratings, while PK10000 averages 4.3 from 6 ratings.

### Do Calc Ultra or PK10000 have ads?

Neither Calc Ultra nor PK10000 shows ads.

### Which is updated more often, Calc Ultra or PK10000?

Calc Ultra ships an update every 2 days, and PK10000 every 3 weeks. Most recently, Calc Ultra was updated on October 7, 2026 and PK10000 on October 24, 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.*