# Semaphor vs isagpt

The clearest difference is monetization model: isagpt at free against Semaphor's freemium. isagpt also leads on update cadence (every 4 days vs every 3 weeks). Semaphor's advantage is iOS requirement (10.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Semaphor ships an update every 3 weeks, isagpt every 4 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Semaphor | isagpt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (15 ratings)](https://appshunter.io/ios/app/semaphor/id1093566063/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 15.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Freemium | **Free** |
| Size | 19 MB | 1.7 GB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [SpiderOak, Inc.](https://appshunter.io/developer/360584374) | [IS browser LLC](https://appshunter.io/developer/1756279088) |

## What reviewers say

### Semaphor

[App page](https://appshunter.io/ios/app/semaphor/id1093566063)

This app offers secure team communication and collaboration with end-to-end encryption and private blockchain technology. It provides features like direct messaging, file sharing, and project-specific channels for real-time teamwork.

**Highlights:** End-to-end encryption, Secure file sharing, Private direct messaging, Unlimited project channels, Real-time collaboration, Native offline mode

**Features:** macOS Compatibility

**In-app purchases:** none


### isagpt

[App page](https://appshunter.io/ios/app/isagpt/id6738778743)

This application offers an AI experience that does not rely on data centers, aiming to reduce water and energy consumption. It empowers users to utilize AI directly on their devices, promoting environmental consciousness.

**Highlights:** Zero AI Datacenter reliance, Reduced water consumption, Lower energy usage, On-device AI processing, Environmentally conscious AI

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Semaphor free?

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

### Is isagpt free?

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

### Do Semaphor or isagpt have ads?

Neither Semaphor nor isagpt shows ads.

### Which is updated more often, Semaphor or isagpt?

Semaphor ships an update every 3 weeks, and isagpt every 4 days. Most recently, Semaphor was updated on November 2, 2026 and isagpt on October 30, 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.*