# NDTD Language Shadower vs Speech and Language Tracker

The clearest difference is update cadence: Speech and Language Tracker at every 6 days against NDTD Language Shadower's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. NDTD Language Shadower sells 14 one-off in-app purchases and Speech and Language Tracker sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

NDTD Language Shadower ships an update every 3 weeks, Speech and Language Tracker every 6 days. The most recent releases landed on October 5, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | NDTD Language Shadower | Speech and Language Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/speech-and-language-tracker/id6780897319/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 23 MB |
| Requires iOS | 18.2.1 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thanh Nam Nguyen](https://appshunter.io/developer/1809677306) | [Michael Ipong](https://appshunter.io/developer/6780897321) |

## What reviewers say

### NDTD Language Shadower

[App page](https://appshunter.io/ios/app/ndtd-language-shadower/id6744872799)

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support Tip 049 | $0.49 | one-time |
| Karaoke Shadow Recording | $0.49 | one-time |
| 10 Credits | $0.99 | one-time |
| Unlock Auto Gen | $0.99 | one-time |
| Support Tip 099 | $0.99 | one-time |
| Support Tip 199 | $1.99 | one-time |
| 60 Credits | $2.99 | one-time |
| Support Tip 299 | $2.99 | one-time |
| 120 Credits | $4.99 | one-time |
| Support Tip 500 | $5.00 | one-time |
| Medium Tip | $10.00 | one-time |
| Support Tip 1000 | $10.00 | one-time |
| 1200 Credits | $14.99 | one-time |
| Support Tip 3000 | $30.00 | one-time |


### Speech and Language Tracker

[App page](https://appshunter.io/ios/app/speech-and-language-tracker/id6780897319)

This app helps parents and caregivers document and organize a child's communication development. It tracks milestones, provides educational activities, and generates progress reports to support language growth from infancy through early childhood.

**Highlights:** Log words, signs, sounds, and phrases, Track communication milestones, Age-appropriate milestone exploration, Parent-friendly activities and learning ideas, Educational flashcards and language tools, Progress reports and summaries

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Language Tracker Premium | $4.99 | per month |


## Frequently asked questions

### Is NDTD Language Shadower free?

NDTD Language Shadower is free to download, with in-app purchases available.

### Is Speech and Language Tracker free?

Speech and Language Tracker is free to download, with in-app purchases available.

### Do NDTD Language Shadower or Speech and Language Tracker have ads?

Neither NDTD Language Shadower nor Speech and Language Tracker shows ads.

### Which is updated more often, NDTD Language Shadower or Speech and Language Tracker?

NDTD Language Shadower ships an update every 3 weeks, and Speech and Language Tracker every 6 days. Most recently, NDTD Language Shadower was updated on October 5, 2026 and Speech and Language Tracker on October 11, 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.*