# Offline Chatbot vs Spark Number

The clearest difference is rating: Spark Number at 5.0 against Offline Chatbot's 4.1. Offline Chatbot's advantage is ratings volume (18 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Offline Chatbot sells 4 in-app purchases, starting at $4.99 per month and Spark Number sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Spark Number holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Offline Chatbot has 18 ratings behind it against 1, so its average is the more settled of the two.

Offline Chatbot ships an update every 4 weeks, Spark Number every 2 weeks. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Offline Chatbot | Spark Number |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (18 ratings)](https://appshunter.io/ios/app/offline-chatbot-private-ai/id6657958995/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spark-number/id6763991053/reviews)** |
| Number of ratings | **18** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 300 MB | 4 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [新雨 李](https://appshunter.io/developer/1559932632) | [Yellow Mountain Technology, Inc.](https://appshunter.io/developer/1113231522) |

## What reviewers say

### Offline Chatbot

[App page](https://appshunter.io/ios/app/offline-chatbot-private-ai/id6657958995)

Experience a private AI chatbot that runs entirely offline on your device. This local AI assistant utilizes advanced LLM technology for secure and fast conversations without needing an internet connection.

**Highlights:** Offline AI chatbot, Local LLM technology, Private and secure conversations, No internet required, Fast AI assistance, Always accessible

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Offline Chatbot Subscription | $4.99 | per month |
| private LLM unlimited features | $4.99 | per month |
| Offline Chatbot Life Time | $14.99 | one-time |
| private LLM unlimited features | $14.99 | one-time |


### Spark Number

[App page](https://appshunter.io/ios/app/spark-number/id6763991053)

Create personalized calculators for any task using simple text prompts. This app generates custom tools with native interfaces for mortgage calculations, recipes, discounts, and more, supporting advanced formulas and multiple languages.

**Highlights:** AI-powered calculator generation, Custom formula support, Native iOS interface, Multi-language prompt support, Plain text description input

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Pack 15 credits | $0.99 | one-time |
| Unlock Unlimited Slots | $4.99 | one-time |
| Value Pack 50 credits | $4.99 | one-time |
| Master Pack 150 credits | $9.99 | one-time |


## Frequently asked questions

### Is Offline Chatbot free?

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

### Is Spark Number free?

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

### Which has better reviews, Offline Chatbot or Spark Number?

Spark Number is rated higher. Offline Chatbot averages 4.1 out of 5 from 18 ratings, while Spark Number averages 5.0 from 1 ratings.

### Do Offline Chatbot or Spark Number have ads?

Neither Offline Chatbot nor Spark Number shows ads.

### Which is updated more often, Offline Chatbot or Spark Number?

Offline Chatbot ships an update every 4 weeks, and Spark Number every 2 weeks. Most recently, Offline Chatbot was updated on October 24, 2026 and Spark Number on October 7, 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.*