# Digit Whisper vs pH Lab

The clearest difference is in-app purchases: Digit Whisper at none against pH Lab's 1. Digit Whisper also leads on ads (none vs shown) and iOS requirement (18.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. pH Lab sells 1 one-off in-app purchase. Digit Whisper asks for nothing beyond the download.

## The numbers

| Metric | Digit Whisper | pH Lab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/digit-whisper/id6759448428/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | — |
| Monetization | Free | — |
| Size | 5 MB | 14 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Farkhod Yuldashev](https://appshunter.io/developer/1100803603) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Digit Whisper

[App page](https://appshunter.io/ios/app/digit-whisper/id6759448428)

Master number recognition in multiple languages through engaging, bite-sized gameplay. See a number word and tap the correct digits on a custom keypad. Track your progress and build streaks in a distraction-free environment.

**Highlights:** Multilingual number recognition, Custom number pad input, Progressive difficulty levels, Streak and accuracy tracking, Distraction-free interface, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


### pH Lab

[App page](https://appshunter.io/ios/app/ph-lab-chemistry-simulator/id6760988065)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


## Frequently asked questions

### Is Digit Whisper free?

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

### Is pH Lab free?

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

### Do Digit Whisper or pH Lab have ads?

pH Lab shows ads; Digit Whisper does not.

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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.*