# Wisen vs Celestis

The clearest difference is review sentiment: Celestis at 100% against Wisen's 0%. Celestis also leads on rating (5.0 vs 3.0) and ratings volume (4 vs 1). Wisen's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Celestis holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 0% of Wisen's written reviews are positive against 100% of Celestis's.

Wisen ships an update every 6 days, Celestis every 2 weeks. Both last shipped on October 23, 2026.

## The numbers

| Metric | Wisen | Celestis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/wisen-ai-notes-and-knowledge/id6760642726/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/celestis/id6781116681/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free | Free |
| Size | 21 MB | 3.0 GB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [DARIA LENSKAJA](https://appshunter.io/developer/1885471826) | [Celestis Ai Inc](https://appshunter.io/developer/6781116683) |

## What reviewers say

### Wisen

[App page](https://appshunter.io/ios/app/wisen-ai-notes-and-knowledge/id6760642726)

This app intelligently analyzes your notes to surface forgotten ideas, patterns, and unresolved questions. It offers daily digests, AI-powered chat for querying your notes, and visual knowledge mapping. Learn and retain information effectively through spaced repetition.

**Highlights:** AI-powered idea surfacing, Daily note digests, AI chat for note queries, Visual knowledge mapping, Spaced repetition learning, PDF, image, and voice import

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

**In-app purchases:** none


### Celestis

[App page](https://appshunter.io/ios/app/celestis/id6781116681)

This AI assistant empowers professionals with private, on-device intelligence for document analysis and knowledge retrieval. It offers offline capabilities, custom AI models built from your data, and supports various AI providers for ultimate flexibility and data sovereignty.

**Highlights:** On-device AI with Apple Intelligence, Offline AI capabilities, Private Capsules for custom AI models, Support for multiple AI providers, Near 100% accurate, sourceable answers, Document ingestion from various formats

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Wisen free?

Wisen is free to download, with no in-app purchases.

### Is Celestis free?

Celestis is free to download, with no in-app purchases.

### Which has better reviews, Wisen or Celestis?

Celestis is rated higher. Wisen averages 3.0 out of 5 from 1 ratings, while Celestis averages 5.0 from 4 ratings.

### Do Wisen or Celestis have ads?

Neither Wisen nor Celestis shows ads.

### Which is updated more often, Wisen or Celestis?

Wisen ships an update every 6 days, and Celestis every 2 weeks. Most recently, Wisen was updated on October 23, 2026 and Celestis on October 23, 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.*