# tValue vs Sinograms

The clearest difference is price: tValue at Free against Sinograms's $3.99. tValue also leads on rating (5.0 vs 4.7). Sinograms's advantage is update cadence (monthly vs every 9 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

tValue is free to download; Sinograms costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

tValue holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

tValue ships an update every 9 months, Sinograms monthly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | tValue | Sinograms |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tvalue/id1082227470/reviews)** | [4.7 (3 ratings)](https://appshunter.io/ios/app/sinograms/id1569372305/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | **Free** | Paid |
| Size | 1 MB | 222 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [David Bourne](https://appshunter.io/developer/1031086386) | [Samuel REAUD](https://appshunter.io/developer/1552540592) |

## What reviewers say

### tValue

[App page](https://appshunter.io/ios/app/tvalue/id1082227470)

Calculate unpaired Student t Values quickly using mean, standard deviation, and sample size. It also supports calculating t values for differences from zero or a specified value. Use difference values for Set 1 and leave Set 2 blank for paired t tests.

**Highlights:** Calculate unpaired Student t Values, Calculate t values for difference from zero, Calculate t values for difference from specified value, Supports paired t tests, Input mean, standard deviation, and n

**Features:** macOS Compatibility

**In-app purchases:** none


### Sinograms

[App page](https://appshunter.io/ios/app/sinograms/id1569372305)

Explore over 10,300 Chinese characters with detailed information, including stroke order, pronunciation, and usage examples. Practice writing characters and learn about the fundamentals of Chinese writing.

**Highlights:** 10,300+ simplified and traditional characters, Customizable character grid browsing, Search and filter functionality, Favorites list, Stroke order decomposition, Detailed character information, Writing practice module

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is tValue free?

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

### Is Sinograms free?

Sinograms costs $3.99, with no in-app purchases.

### Which has better reviews, tValue or Sinograms?

tValue is rated higher. tValue averages 5.0 out of 5 from 1 ratings, while Sinograms averages 4.7 from 3 ratings.

### Do tValue or Sinograms have ads?

Neither tValue nor Sinograms shows ads.

### Which is updated more often, tValue or Sinograms?

tValue ships an update every 9 months, and Sinograms monthly. Most recently, tValue was updated on November 6, 2026 and Sinograms on November 3, 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.*