# Fret Drill vs lemma

The clearest difference is update cadence: lemma at every 3 days against Fret Drill's every 6 weeks. lemma also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Fret Drill sells 2 in-app purchases, starting at $1.99 per 7 days and lemma sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Fret Drill against 5.0 for lemma. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Fret Drill ships an update every 6 weeks, lemma every 3 days. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Fret Drill | lemma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/fret-drill-learn-guitar-notes/id6759346882/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 15 MB | 31 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Andrii Sievrikov](https://appshunter.io/developer/1568000284) | [Roger You](https://appshunter.io/developer/1804598101) |

## What reviewers say

### Fret Drill

[App page](https://appshunter.io/ios/app/fret-drill-learn-guitar-notes/id6759346882)

Learn guitar notes by playing your actual instrument. The app listens via your microphone and provides instant feedback, guiding you from basic exercises to mastering the entire fretboard. Turn memorization into muscle memory with focused daily practice.

**Highlights:** Practice with your real guitar, Instant microphone note detection, Step-by-step lessons, Smart practice repeating weak spots, Progress tracking, Customizable lessons

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $1.99 | per 7 days |
| Yearly Plan | $29.99 | per year |


### lemma

[App page](https://appshunter.io/ios/app/lemma-comp-math-trainer/id6770669166)

This app provides focused, daily practice for quantitative interviews, featuring timed sprints of math and probability problems. It tracks your skill across disciplines with adaptive difficulty and offers hints and solutions to help you improve. Designed for those preparing for trading firm interviews or seeking to build a quantitative thinking habit.

**Highlights:** Daily timed problem sprints, Per-category ELO skill tracking, Adaptive difficulty, Hints and step-through solutions, Streaks, XP, and achievements, Leaderboard

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lemma Premium | $6.99 | per 7 days |
| Lemma Premium | $9.99 | per month |
| Lemma Premium | $59.99 | per year |


## Frequently asked questions

### Is Fret Drill free?

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

### Is lemma free?

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

### Which has better reviews, Fret Drill or lemma?

Fret Drill and lemma are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Fret Drill or lemma have ads?

Neither Fret Drill nor lemma shows ads.

### Which is updated more often, Fret Drill or lemma?

Fret Drill ships an update every 6 weeks, and lemma every 3 days. Most recently, Fret Drill was updated on September 24, 2026 and lemma on September 19, 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.*