# Ling vs LEST

The clearest difference is price: LEST at Free against Ling's $2.99. Ling's advantage is in-app purchases (none vs 10) and update cadence (every 6 months vs every 19 months). On ads, device support and iOS requirement there is nothing between them.

LEST is free to download; Ling costs $2.99 up front. LEST sells 10 one-off in-app purchases. Ling asks for nothing beyond the download.

Ling ships an update every 6 months, LEST every 19 months. The most recent releases landed on August 30, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Ling | LEST |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/ling/id1435126731/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 19 months |
| Monetization | Paid | — |
| Best chart rank | **#135** | — |
| Size | 106 MB | 24 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Royal Institute for Deaf and Blind Children](https://appshunter.io/developer/307217029) | [SCIPILOT PTY LTD](https://appshunter.io/developer/1624231632) |

## What reviewers say

### Ling

[App page](https://appshunter.io/ios/app/ling/id1435126731)

**Currently charting:** #135 Top Paid · Education (US App Store)

This app allows users to conduct and track hearing tests using the Ling Six Sound Test. It helps verify that hearing devices are functioning correctly by playing specific speech sounds and recording results over time, replacing manual record-keeping.

**Highlights:** Conduct Ling Six Sound Tests, Track test results over time, Verify hearing device function, Record results for multiple users, Use pre-recorded male/female voices, Record custom voice prompts, Self-check hearing devices

**Features:** Vision Pro support

**In-app purchases:** none


### LEST

[App page](https://appshunter.io/ios/app/lest-letter-sound-rules/id6443398604)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 LeST Result Sheet | $5.49 | one-time |
| 5 LeST Results Sheets | $24.99 | one-time |
| 5 LeST Results Sheets | $31.99 | one-time |
| 20 LesT Results Sheets | $89.99 | one-time |
| 50 LeST Results Sheets | $159.99 | one-time |
| 70 LeST Results Sheets | $219.99 | one-time |
| 160 LeST Results Sheets | $259.99 | one-time |
| 200 LeST Results Sheets | $299.99 | one-time |
| 500 LeST Results Sheets | $499.99 | one-time |
| 800 LeST Results Sheets | $799.99 | one-time |


## Frequently asked questions

### Is Ling free?

Ling costs $2.99, with no in-app purchases.

### Is LEST free?

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

### Do Ling or LEST have ads?

Neither Ling nor LEST shows ads.

### Which is updated more often, Ling or LEST?

Ling ships an update every 6 months, and LEST every 19 months. Most recently, Ling was updated on August 30, 2026 and LEST on September 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.*