# Date T Calc vs iA Presenter

The clearest difference is price: Date T Calc at $0.99 against iA Presenter's $19.99. Date T Calc also leads on review sentiment (100% vs 88%) and iOS requirement (12.0 vs 16.0). iA Presenter's advantage is rating (4.9 vs 4.0) and update cadence (every 2 weeks vs every 17 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

Date T Calc costs $0.99 and iA Presenter $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

iA Presenter holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: iA Presenter has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Date T Calc's written reviews are positive against 88% of iA Presenter's, so the app with the better star average is not the one people write more warmly about.

Date T Calc ships an update every 17 months, iA Presenter every 2 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Date T Calc | iA Presenter |
| --- | --- | --- |
| Price | **$0.99** | $19.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/date-t-calc/id426018218/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/ia-presenter/id6450214174/reviews)** |
| Number of ratings | 1 | **10** |
| Positive reviews | **100.0% of reviews** | 87.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#108** |
| Size | 1 MB | 93 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roberto Panetta](https://appshunter.io/developer/1438480110) | [Information Architects AG](https://appshunter.io/developer/775737175) |

## What reviewers say

### Date T Calc

[App page](https://appshunter.io/ios/app/date-t-calc/id426018218)

Easily calculate future and past dates by adding or subtracting days, hours, and minutes.  Determine the exact difference between two selected dates, with options for date-only or date-and-time calculations.

**Highlights:** Calculate future and past dates, Determine date differences, Operate in date-only or date-time modes, Add/subtract date intervals, Consider Daylight Saving Time, Supports 12/24 hour format, Internal help guide

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

**In-app purchases:** none


### iA Presenter

[App page](https://appshunter.io/ios/app/ia-presenter/id6450214174)

**Currently charting:** #108 Top Paid · Productivity (US App Store)

Create clean, scalable presentations quickly using Markdown. This app prioritizes content and structure, letting responsive templates handle design for fast, focused creation and rehearsal on Mac, iPhone, and iPad.

**Highlights:** Markdown-based content creation, Responsive typographic templates, Fast deck building and rehearsal, Cross-device compatibility (Mac, iPhone, iPad), Scalable layouts for any screen

**In-app purchases:** none


## Frequently asked questions

### Is Date T Calc free?

Date T Calc costs $0.99, with no in-app purchases.

### Is iA Presenter free?

iA Presenter costs $19.99, with no in-app purchases.

### Which has better reviews, Date T Calc or iA Presenter?

iA Presenter is rated higher. Date T Calc averages 4.0 out of 5 from 1 ratings, while iA Presenter averages 4.9 from 10 ratings.

### Do Date T Calc or iA Presenter have ads?

Neither Date T Calc nor iA Presenter shows ads.

### Which is updated more often, Date T Calc or iA Presenter?

Date T Calc ships an update every 17 months, and iA Presenter every 2 weeks. Most recently, Date T Calc was updated on October 20, 2026 and iA Presenter on October 25, 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.*