# DayNumCalc vs OmniCalc

The clearest difference is price: OmniCalc at Free against DayNumCalc's $0.99. OmniCalc also leads on update cadence (every 3 days vs every 6 months). DayNumCalc's advantage is ratings volume (6 vs 1) and iOS requirement (15.5 vs 17.0). On rating, review sentiment, ads and in-app purchases there is nothing between them.

OmniCalc is free to download; DayNumCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OmniCalc holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: DayNumCalc has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

DayNumCalc ships an update every 6 months, OmniCalc every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DayNumCalc | OmniCalc |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.8 (6 ratings)](https://appshunter.io/ios/app/daynumcalc/id1633054306/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/omnicalc-calculator-and-notes/id6760615662/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 4 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mayra M Martinez](https://appshunter.io/developer/1633054308) | [飞龙 杨](https://appshunter.io/developer/1686016407) |

## What reviewers say

### DayNumCalc

[App page](https://appshunter.io/ios/app/daynumcalc/id1633054306)

This utility app provides quick access to date calculations, including finding the day number for any date, determining a date from a day number, calculating the difference between two dates, and checking the day of the week. It also offers widgets for convenient access on your home and lock screens.

**Highlights:** Calculate day number from date, Determine date from day number, Calculate days between two dates, Add/subtract days from a date, Check day of the week, Home screen widgets, Today View widgets, Lock screen widgets

**In-app purchases:** none


### OmniCalc

[App page](https://appshunter.io/ios/app/omnicalc-calculator-and-notes/id6760615662)

This calculator app allows you to add notes to numbers and calculations, group related results for easy totaling, and keep projects separate. It features a searchable history and customizable appearance options for everyday math needs.

**Highlights:** Add notes to numbers and calculations, Total multiple results with one tap, Keep projects separate with calculation pages, Searchable and reusable calculation history, Live result previews and customizable appearance, Offline functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is DayNumCalc free?

DayNumCalc costs $0.99, with no in-app purchases.

### Is OmniCalc free?

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

### Which has better reviews, DayNumCalc or OmniCalc?

OmniCalc is rated higher. DayNumCalc averages 4.8 out of 5 from 6 ratings, while OmniCalc averages 5.0 from 1 ratings.

### Do DayNumCalc or OmniCalc have ads?

Neither DayNumCalc nor OmniCalc shows ads.

### Which is updated more often, DayNumCalc or OmniCalc?

DayNumCalc ships an update every 6 months, and OmniCalc every 3 days. Most recently, DayNumCalc was updated on November 3, 2026 and OmniCalc on October 31, 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.*