# TUNIC Guitar Tuner vs Kritus

The clearest difference is price: Kritus at Free against TUNIC Guitar Tuner's $0.99. Kritus also leads on update cadence (fortnightly vs every 14 months). TUNIC Guitar Tuner's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 17.0). On ads and device support there is nothing between them.

Kritus is free to download; TUNIC Guitar Tuner costs $0.99 up front. Kritus sells 2 in-app purchases, starting at $8.99 per month. TUNIC Guitar Tuner asks for nothing beyond the download.

TUNIC Guitar Tuner ships an update every 14 months, Kritus fortnightly. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | TUNIC Guitar Tuner | Kritus |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tunic-guitar-tuner/id6443751695/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 3 MB | 132 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Sebastian Stopper](https://appshunter.io/developer/1635946380) | [Mi Lin](https://appshunter.io/developer/6793242806) |

## What reviewers say

### TUNIC Guitar Tuner

[App page](https://appshunter.io/ios/app/tunic-guitar-tuner/id6443751695)

This app offers a unique tuning system called StopperStimmung, designed to create a clear and pure sound on stringed instruments. It provides variable pitch, common open tuning templates, and high sensitivity for precise adjustments.

**Highlights:** StopperStimmung unique tuning system, Variable pitch (415-460 Hz), Selection of common open tunings, High sensitivity tuning (0.012 cent resolution), Capo support (fret 1-5), Saddle compensation verification

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

**In-app purchases:** none


### Kritus

[App page](https://appshunter.io/ios/app/kritus/id6812365185)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kritus Serious User (Monthly) | $8.99 | per month |
| Kritus Serious User (Annual) | $49.99 | per year |


## Frequently asked questions

### Is TUNIC Guitar Tuner free?

TUNIC Guitar Tuner costs $0.99, with no in-app purchases.

### Is Kritus free?

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

### Do TUNIC Guitar Tuner or Kritus have ads?

Neither TUNIC Guitar Tuner nor Kritus shows ads.

### Which is updated more often, TUNIC Guitar Tuner or Kritus?

TUNIC Guitar Tuner ships an update every 14 months, and Kritus fortnightly. Most recently, TUNIC Guitar Tuner was updated on November 3, 2026 and Kritus on November 6, 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.*