# Kelper vs Notarius

The clearest difference is update cadence: Kelper at weekly against Notarius's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Kelper sells 2 in-app purchases, starting at $5.99 per month and Notarius sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kelper ships an update weekly, Notarius every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Kelper | Notarius |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 112 MB | 105 MB |
| Requires iOS | 16.5 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Otterly Space](https://appshunter.io/developer/1783624615) | [CREAIT BV](https://appshunter.io/developer/6789893636) |

## What reviewers say

### Kelper

[App page](https://appshunter.io/ios/app/kelper/id6739311768)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basique Mensuel | $5.99 | per month |
| Basique Annuel | $59.99 | per year |


### Notarius

[App page](https://appshunter.io/ios/app/notarius-transcribe-offline/id6789893634)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Notarius | $19.99 | one-time |


## Frequently asked questions

### Is Kelper free?

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

### Is Notarius free?

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

### Do Kelper or Notarius have ads?

Neither Kelper nor Notarius shows ads.

### Which is updated more often, Kelper or Notarius?

Kelper ships an update weekly, and Notarius every 3 weeks. Most recently, Kelper was updated on October 25, 2026 and Notarius on October 31, 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.*