# T vs Instructions

The clearest difference is in-app purchases: T at none against Instructions's 1. T also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Instructions sells 1 one-off in-app purchase. T asks for nothing beyond the download.

T ships an update weekly, Instructions fortnightly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | T | Instructions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/t-calc-lite/id1630026837/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 4 MB | 15 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hiroyuki Ueda](https://appshunter.io/developer/473279916) | [Kazuhisa Kobayashi](https://appshunter.io/developer/1580882000) |

## What reviewers say

### T

[App page](https://appshunter.io/ios/app/t-calc-lite/id1630026837)

This app offers a dual calculator interface, allowing side-by-side or stacked calculations. Easily transfer results between calculators with a single touch for complex computations. It displays formulas for clarity and allows copying results to your device's memory.

**Highlights:** Two calculators in one, Copy and paste results between calculators, Input results from one calculator to another, Formula display, Copy results to device memory, Supports basic arithmetic operations

**Features:** Vision Pro support

**In-app purchases:** none


### Instructions

[App page](https://appshunter.io/ios/app/instructions-keep-manuals/id6477866291)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is T free?

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

### Is Instructions free?

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

### Do T or Instructions have ads?

Instructions shows ads; T does not.

### Which is updated more often, T or Instructions?

T ships an update weekly, and Instructions fortnightly. Most recently, T was updated on October 30, 2026 and Instructions 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.*