# Kelper vs One AI

The clearest difference is ads: Kelper at none against One AI's shown. One AI's advantage is device support (4 vs 2). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Kelper sells 2 in-app purchases, starting at $5.99 per month and One AI sells 4 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Kelper ships an update weekly, One AI every 10 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Kelper | One AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/one-ai-ai-note-taker/id6743523150/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Free with in-app purchases |
| Size | 112 MB | 70 MB |
| Requires iOS | 16.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Otterly Space](https://appshunter.io/developer/1783624615) | [Doan Xuan Toan](https://appshunter.io/developer/1370467220) |

## 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 |


### One AI

[App page](https://appshunter.io/ios/app/one-ai-ai-note-taker/id6743523150)

This intelligent assistant transcribes, summarizes, and generates action items from your meetings and lectures in real-time. It offers a secure, user-focused platform to help professionals, students, and teams reclaim time and focus on important outcomes.

**Highlights:** Real-time AI transcription, Instant AI summaries, Automated action items, High-fidelity voice recorder, Secure and private platform, Meeting transcription for Zoom, Meet, Teams

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access & Ad-Free | $5.99 | per 7 days |
| Unlimited Access & Ad-Free | $14.99 | per month |
| Unlimited Access & Ad-Free | $59.99 | per 6 months |
| Unlimited Access & Ad-Free | $99.99 | per year |


## Frequently asked questions

### Is Kelper free?

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

### Is One AI free?

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

### Do Kelper or One AI have ads?

One AI shows ads; Kelper does not.

### Which is updated more often, Kelper or One AI?

Kelper ships an update weekly, and One AI every 10 days. Most recently, Kelper was updated on October 25, 2026 and One AI on October 24, 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.*