# AddCalc Freedom vs OT

The clearest difference is rating: OT at 5.0 against AddCalc Freedom's 3.5. OT also leads on in-app purchases (none vs 1) and iOS requirement (12.0 vs 15.6). AddCalc Freedom's advantage is update cadence (every 6 weeks vs every 3 months) and ratings volume (4 vs 1). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. AddCalc Freedom sells 1 one-off in-app purchase. OT asks for nothing beyond the download.

OT holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

AddCalc Freedom ships an update every 6 weeks, OT every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | AddCalc Freedom | OT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (4 ratings)](https://appshunter.io/ios/app/addcalc-freedom/id562537493/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ot-hr/id6503678075/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 6 MB | 49 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shinichi Aokawa](https://appshunter.io/developer/502862033) | [Myanmar Software Integrated Solutions Co., Ltd](https://appshunter.io/developer/1499677918) |

## What reviewers say

### AddCalc Freedom

[App page](https://appshunter.io/ios/app/addcalc-freedom/id562537493)

This calculator app offers two modes: an adder calculator for accounting and an ordinary calculator. Customize its design, use sound effects, and manage input logs with editing and recalculation. It supports 14 significant digits and always displays Grand Total and Memory.

**Highlights:** Dual calculator modes (adder and ordinary), Customizable calculator design, Input log with editing and recalculation, Voice reading of input log, 14 significant digits, Always display Grand Total and Memory, Backspace function

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $1.99 | one-time |


### OT

[App page](https://appshunter.io/ios/app/ot-hr/id6503678075)

This application streamlines employee attendance tracking through various check-in methods like WiFi, GPS, selfies, and QR codes. It aids organizations in making informed decisions with accurate data and simplifies overtime hour calculation and leave balance checks for employees.

**Highlights:** Multiple check-in methods (WiFi, GPS, selfie, QR), Daily routing plan tracking, Overtime hour calculation, Overtime hour requests, Leave balance checks

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AddCalc Freedom free?

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

### Is OT free?

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

### Which has better reviews, AddCalc Freedom or OT?

OT is rated higher. AddCalc Freedom averages 3.5 out of 5 from 4 ratings, while OT averages 5.0 from 1 ratings.

### Do AddCalc Freedom or OT have ads?

Neither AddCalc Freedom nor OT shows ads.

### Which is updated more often, AddCalc Freedom or OT?

AddCalc Freedom ships an update every 6 weeks, and OT every 3 months. Most recently, AddCalc Freedom was updated on November 1, 2026 and OT 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.*