# NucleApp vs Calyn

The clearest difference is rating: Calyn at 5.0 against NucleApp's 3.6. Calyn also leads on review sentiment (100% vs 69%) and update cadence (fortnightly vs every 3 months). NucleApp's advantage is in-app purchases (none vs 2) and ratings volume (13 vs 4). On price, ads and device support there is nothing between them.

Both are free to download. Calyn sells 2 in-app purchases, starting at $4.99 per month. NucleApp asks for nothing beyond the download.

Calyn holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 13 and 4 respectively. Written reviews point the same way: 69% of NucleApp's written reviews are positive against 100% of Calyn's.

NucleApp ships an update every 3 months, Calyn fortnightly. The most recent releases landed on September 10, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | NucleApp | Calyn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (13 ratings)](https://appshunter.io/ios/app/nucleapp-app-maker-no-code/id6458545224/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calyn/id6747404955/reviews)** |
| Number of ratings | **13** | 4 |
| Positive reviews | 69.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | **Free** | Freemium |
| Size | 104 MB | 22 MB |
| Requires iOS | **15.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [NucleApp Software Private Limited](https://appshunter.io/developer/1701311829) | [Chaai LLC](https://appshunter.io/developer/1738597436) |

## What reviewers say

### NucleApp

[App page](https://appshunter.io/ios/app/nucleapp-app-maker-no-code/id6458545224)

Create professional mobile apps without coding using a drag-and-drop interface and over 80 templates. This platform makes app development accessible to everyone, empowering you to bring your ideas to life.

**Highlights:** No-code app development, Drag-and-drop interface, 80+ app templates, Screen builder, App link creation, Intuitive design

**Features:** macOS Compatibility

**In-app purchases:** none


### Calyn

[App page](https://appshunter.io/ios/app/calyn/id6747404955)

Effortlessly capture and organize your life's events. This intelligent assistant allows you to add appointments from photos, voice notes, or text, detect conflicts, and find free time. Streamline your schedule and reclaim your focus.

**Highlights:** Capture events from images, audio, or text, Utilize templates for recurring routines, Share events via extension from other apps, Detect and resolve event conflicts, Find and share available time slots, Batch capture multiple events at once

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Essential Plan | $4.99 | per month |
| Pro Plan | $9.99 | per month |


## Frequently asked questions

### Is NucleApp free?

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

### Is Calyn free?

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

### Which has better reviews, NucleApp or Calyn?

Calyn is rated higher. NucleApp averages 3.6 out of 5 from 13 ratings, while Calyn averages 5.0 from 4 ratings.

### Do NucleApp or Calyn have ads?

Neither NucleApp nor Calyn shows ads.

### Which is updated more often, NucleApp or Calyn?

NucleApp ships an update every 3 months, and Calyn fortnightly. Most recently, NucleApp was updated on September 10, 2026 and Calyn on June 3, 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.*