# tcCalc - timecode & frame calc

> Timecode and frame calculator with multiple frame rate support. (iPhone/iPad app by RYUICHIROU SHIMONO.)

- Source: https://appshunter.io/ios/app/tccalc-timecode-and-frame-calc/id1144759699 (this page in markdown: same URL + `.md`)
- Developer: [RYUICHIROU SHIMONO](https://appshunter.io/developer/696880855)
- Category: Photo & Video, Productivity
- Price: $0.99
- Rating: 4.70/5 from 76 App Store ratings · 19 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 0 MB
- Languages: American English, Japanese
- Released: 2016-09-09
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/tccalc-timecode-and-frame-calc/id1144759699/reviews.md

## What is tcCalc?

# Overview
This app is a calculator specialized for timecode and frame-based calculations. It operates in the same way as a regular calculator, and can calculate timecode and convert between frames.

# Features
- Timecode calculations can be performed with the same feel as a regular calculator.
- Convert between timecode and frames.
- Supports multiple frame rates.
- Input values ​​and calculation results are always automatically adjusted to within the range of 0 to 24 hours.

# How to Use

## Input
Enter timecode and frame count using the number buttons (0-9).
The AC button clears the displayed value and all calculation progress.
The C button clears only the current input value and calculation result.
The Delete button deletes the displayed value one character at a time.
Numbers can be entered up to 8 digits long.

## Calculation
Calculations are performed using the +, -, and = buttons, just like a regular calculator.
For example, you can use the - button to calculate the elapsed time (duration) between two timecodes.

## Display Mode
Press the F button to convert the displayed value to frames.
Press the T button to convert the displayed value to timecode.
You can freely change the display format, even during calculations.

## Changing Frame Rate
Tap the fps display in the upper left corner of the screen to display the frame rate selection screen.
You can choose from 23.98fps, 24fps, 25fps, 29.97fps, 30fps, 50fps, 59.94fps, and 60fps.
29.97fps and 59.94fps use the drop frame (DF) method, while other frame rates use the non-drop frame (NDF) method.
Selecting the hh:mm:ss display allows you to calculate only hours, minutes, and seconds, excluding frames.

## Copy & Paste
Press and hold the calculation result to display a menu with the options to copy or paste.
You can copy or paste numbers by selecting an operation from the menu.
This allows you to copy and paste numbers between the iPhone's standard calculator app, notes app, and other apps.
If the string you are pasting contains non-numeric characters, only the numeric portion will be entered in order.
In frame display mode, the value will be pasted with decimal points truncated.

# Other

## Memory Function
The m+, m−, and mc buttons can be used to access the memory function.
Memorized values ​​are displayed in the upper right corner of the screen, and you can use them as input values ​​by tapping them.
This function is equivalent to the mr button on a typical calculator.

## Calculation History Function
Swipe up on the calculation result display to view the most recent calculation history.
The most recent 20 calculations are saved. If the number of saved calculations exceeds 20, the oldest will be automatically deleted.

## Additional Information
Press the +/− button to change the sign of the input value and calculation result.
Negative values ​​are displayed as 24 hours minus the corresponding value.
Timecode calculation primarily complies with the SMPTE 12M-1 standard.
The 59.94fps calculation is based on the counting method commonly used in Adobe Premiere Pro and other applications.

## Key features

- Timecode and frame calculations
- Convert between timecode and frames
- Supports multiple frame rates
- Automatic value adjustment
- Copy and paste functionality
- Memory function
- Calculation history

## Recent user reviews (10 of 19)

All indexed reviews: https://appshunter.io/ios/app/tccalc-timecode-and-frame-calc/id1144759699/reviews.md

### 3/5 — Love this but there’s a bad glitch

*2026-04-05*

I’ve been using this app for years and it’s great however in the past 2 months there’s a glitch asking me if it’s ok to cut and paste. This pop up happens before every single calculation and is driving me crazy. I’ve tried to delete it and put it back on my phone a few times to no avail.

**Developer response:** Thank you for your review and comments. The paste confirmation screen is displayed due to Apple's privacy protection specifications. Therefore, it cannot be completely hidden. However, the frequent display of the screen could be improved. We plan to fix this in the next version 3.5 to reduce its frequency.

### 2/5 — レイアウト戻して

*2026-02-13*

レイアウトが変わってやりずらい、アイコンのような四角いままでいてほしい。オシャレにしなくていい、ミスが無いように使えれば

**Developer response:** コメントありがとうございます。これまで一部に古いプログラムを使用していたため、今回新しく更新しました。導入したばかりでご不便をおかけすることもあるかと思いますが、不具合があれば出来る限りすぐに対応いたします。今後ともよろしくお願いいたします。

### 5/5 — Been using for years

*2026-02-11*

I’ve been using this app for years and have never had an issue.  This latest update, however, has made the calculator completely unusable with my iphone.

Update: App has been fixed.  Great again for my needs.

**Developer response:** Thank you for your comment and continued support. We identified an issue introduced in version 3.0, which was fixed in version 3.1. We are also continuing to make further improvements and plan to release version 3.2 soon. We truly appreciate you using the app for such a long time.

### 3/5 — App UI too big

*2026-02-07*

After app was updated, the UI is too big, half of the calculator can’t be seen. Using an iPhone 14 pro max.

**Developer response:** Thank you for your comment and rating. At this time, we were unable to reproduce the display issue in our simulator environment (iPhone 14 Pro Max / iOS 26.2). As a precaution, could you please try deleting the app and reinstalling it? In addition, we are working on improvements related to this issue and plan to release an updated version (v3.2).

### 2/5 — 23.98fps

*2026-02-06*

00:00:00;00
このような表示になってしまい計算が合いません。
00:00:00:00
この表示の時は計算が合っています、23.98にはドロップフレームは無いはずなので改善願います。

**Developer response:** コメントありがとうございました。確認したところ、ver3.0へのアップデート時に発生した不具合でした。こちらはver3.1にて修正しておりますので、最新バージョンをご確認いただけますと幸いです。なお、内部処理の仕様につきましては、ご指摘のとおりの動作となっております。現在、さらなる改善を行った ver3.2 のリリースも予定しておりますので、今後ともよろしくお願いいたします。

### 1/5 — Unusable

*2026-02-05*

I’ve been using this app for years and have never had an issue.  This latest update, however, has made the calculator completely unusable with my iphone.

**Developer response:** Thank you for your comment. After checking, I found that a bug occurred during the update to version 3.0. It has been fixed in version 3.1. Please check the latest version.

### 5/5 — This is a great app …

*2024-02-08*

... and helps me to move show parts when, for example, the music content changes. The quick conversion of frame numbers to timecode is also extremely clever (just press the F/T button).
More frame rate presets would be helpful for me: 10 fps and 100 fps

**Developer response:** Thank you very much for your rating and comments. I will take your comments into consideration in the future.

### 5/5 — Please add conversion to feet and frames!

*2023-09-09*

Please add conversion to feet and frames! This would create super helpful!

**Developer response:** Thank you for your rating and comments. I think feet is used in film movies. However, I don't know much about film. I might consider your suggestion in a future update if possible.

### 5/5 — Ads

*2022-12-17*

Can we pay you a couple bucks to remove the ads?

**Developer response:** Thank you for your comments and ratings.  I don't know if I can meet your request, but I will consider it.

### 4/5 — 24h以上も表示できれば

*2022-06-21*

例えば
23:50:50+00:10:00=00:00:50になりますが、
=24:00:50と答えが出るようにできますか？

大変操作性が良いアプリなので重宝していますが、よろしくお願いします。

**Developer response:** コメントと評価ありがとうございました。
この計算機は 24h以上になると0からカウントし直すタイムコードの特徴を再現するようにしてあります。そのため今のところ変更予定はありませんが、ご意見はありがたく頂戴し、今後のバージョンアップに活かしていきたいと思います。

## Frequently asked questions about tcCalc

### How does tcCalc handle timecode calculations?

tcCalc allows timecode calculations with the same feel as a regular calculator. You can input timecodes and use standard operators like +, -, and =. For example, the '-' button can calculate the elapsed time between two timecodes.

### Can tcCalc convert between timecode and frames?

Yes, tcCalc can easily convert between timecode and frames. Pressing the 'F' button converts the displayed value to frames, and pressing the 'T' button converts it to timecode. This can be done freely during calculations.

### What frame rates does tcCalc support?

tcCalc supports a wide range of frame rates including 23.98fps, 24fps, 25fps, 29.97fps, 30fps, 50fps, 59.94fps, and 60fps. It also distinguishes between drop frame (DF) and non-drop frame (NDF) methods for relevant rates.

### How does tcCalc manage input and results?

Input values and calculation results are automatically adjusted to be within the range of 0 to 24 hours. You can enter numbers up to 8 digits long. Negative values are displayed as 24 hours minus the corresponding value.

### Is tcCalc compatible with other apps?

Yes, tcCalc features copy and paste functionality. You can press and hold the calculation result to copy it and paste it into other applications like notes or the iPhone's standard calculator app.

### Does tcCalc have a memory function?

Yes, tcCalc includes a memory function with 'm+', 'm-', and 'mc' buttons, similar to a typical calculator's 'mr' button. Memorized values are displayed in the upper right corner and can be used as input values.

### How often is tcCalc updated?

The latest version of tcCalc is 3.5, and it was last updated on April 7, 2026. This indicates a relatively recent update, suggesting ongoing support and potential for future improvements.

### What is the price of tcCalc?

tcCalc is a paid application priced at $0.99. It does not feature in-app purchases or advertisements, offering a straightforward purchase for full functionality.

## Version history (last 5 releases)

### 3.6 — 2026-06-02

Internal improvements and code refinements.

### 3.5 — 2026-04-07

We've modified the code to reduce the frequency of the paste confirmation screen.

### 3.4 — 2026-03-06

Added a calculation history feature.

### 3.3 — 2026-02-17

- UI refinements
- Improved responsiveness and usability
- Enhanced calculation stability

### 3.2 — 2026-02-10

Improved layout and visual adjustments for a more consistent experience across different devices.

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All apps by RYUICHIROU SHIMONO: https://appshunter.io/developer/696880855

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*