# SignDict vs Nuclide Chart

The clearest difference is price: Nuclide Chart at Free against SignDict's $9.99. Nuclide Chart also leads on update cadence (daily vs fortnightly). SignDict's advantage is device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

Nuclide Chart is free to download; SignDict costs $9.99 up front. SignDict sells 2 in-app purchases, starting at $3.99 per month and Nuclide Chart sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

SignDict ships an update fortnightly, Nuclide Chart daily. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SignDict | Nuclide Chart |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/signdict/id6738938959/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Paid | — |
| Size | 457 MB | 15 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Chavez](https://appshunter.io/developer/1446817481) | [Peer Jansen](https://appshunter.io/developer/1859289195) |

## What reviewers say

### SignDict

[App page](https://appshunter.io/ios/app/signdict/id6738938959)

Explore Japanese and American Sign Language with this comprehensive dictionary and translator. Practice signing the alphabet, Hiragana, and more, even offline. Connect with Deaf communities and enhance your communication skills.

**Highlights:** Bilingual translation (ASL & JSL), Interactive learning (alphabet, Hiragana), Offline mode, Extensive sign library (20,000+ signs), Distraction-free experience

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SignDict Subscription | $3.99 | per month |
| SignDict Lifetime | $9.99 | one-time |


### Nuclide Chart

[App page](https://appshunter.io/ios/app/nuclide-chart/id6756217497)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nuclide Chart Pro | $2.99 | one-time |


## Frequently asked questions

### Is SignDict free?

SignDict costs $9.99, and also offers in-app purchases.

### Is Nuclide Chart free?

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

### Do SignDict or Nuclide Chart have ads?

Neither SignDict nor Nuclide Chart shows ads.

### Which is updated more often, SignDict or Nuclide Chart?

SignDict ships an update fortnightly, and Nuclide Chart daily. Most recently, SignDict was updated on October 24, 2026 and Nuclide Chart on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*