AddCalc Freedom vs OT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
AddCalc Freedom
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.
- 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
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Do you know the calculator of optimal adder method for an accounting calculation? (with the calculation method change function) Try it on the iPhone and iPad you always carry around. 【Feature】 - This can switch an "adder calculator" and "ordinary calculator” - Simple setting of the design of the calculator - Sound effects - Input log and copy - Input log editing + recalculation function - Voice reading of the input log (for iOS7) - 14 Number of significant digits - Always display "Grand Total" - Always display "Memory" - BackSpace function Simple design that is emphasis in the adder calculation function 【How to use an adder calculator】 ”(10×10)+(5×5)-(6×5)=95” 10 [×] 10 [+=] 5 [×] 5 [+=] 6 [×] 5 [-] [GT] (10×10)Add(5×5)Add(6×5)Pull Ver5.5.3 later % Calculation example : 500 + (500 × 12%) = 560 500 [+=] 12 [%] [+=] (Old : 500 [+=] [×] 12 [%] [+=]) 【How to use an ordinary calculator】 ”(10×10)+(5×5)-(6×5)=95” 10 [×] 10 [=][M+] 5 [×] 5 [=][M+] 6 [×] 5 [=] [M-][MR] Added to the Grand Total by "=" The continuous input will be "10 × 10 + 5 × 5 - 6 × 5 = 2595" Ver5.5.3 later % Calculation example : 500 + (500 × 12%) = 560 500 [+] 12 [%] [=] (Old : 500 [+] [×] 12 [%] [=])
OT
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.
- Multiple check-in methods (WiFi, GPS, selfie, QR)
- Daily routing plan tracking
- Overtime hour calculation
- Overtime hour requests
- Leave balance checks
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OT-HR is developed for recording the employee’s attendance. OT-HR intends to help with the tracking of the daily routing plan of work. The employee can attend a WiFi, GPS, selfie, or QR check-in in OT-HR. The OT-HR attendance module helps organizations make strategic decisions based on accurately reported data. OT-HR is calculated for overtime hours by comparing the standard working hour and actual total working hours. Employees can easily request their overtime hours to overcome the conflict between HR and employees in OT-HR. Moreover, the employees can easily check their remaining leaves without conflict with HR.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | AddCalc Freedom | OT |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 52.9% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 49 MB |
| Age rating | 4+ | 17+ |
| Developer | Shinichi Aokawa | Myanmar Software Integrated Solutions Co., Ltd |
Customer experience
AddCalc Freedom
OT
In-app purchases
AddCalc Freedom
- Remove ads$1.99
OT
No in-app purchases









